Stuxnet

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Stuxnet
Technical nameAs Stuxnet
Worm:Win32/Stuxnet.[Letter]
TrojanDropper:Win32/Stuxnet
  • By
    Symantec
W32.Stuxnet
W32.Stuxnet!lnk
Troj/Stuxnet-[Letter]
Trojan-Dropper.Win32.Stuxnet.[Letter]
Worm.Win32.Stuxnet.[Letter]
TR/Drop.Stuxnet.[Letter].[Number]
Worm.Win32.Stuxnet
Trojan-Dropper:W32/Stuxnet
Rootkit:W32/Stuxnet
RTKT_STUXNET.[Letter]
LNK_STUXNET.[Letter]
WORM_STUXNET.[Letter]
ClassificationComputer worm
TypeDropper
Author(s)Equation Group
Operating system(s) affectedSource:[1]

Stuxnet is a malicious computer worm first uncovered in 2010 and thought to have been in development since at least 2005. Stuxnet targets supervisory control and data acquisition (SCADA) systems and is believed to be responsible for causing substantial damage to the nuclear program of Iran.[2] Although neither country has openly admitted responsibility, multiple independent news organizations recognize Stuxnet to be a cyberweapon built jointly by the United States and Israel in a collaborative effort known as Operation Olympic Games.[3][4][5] The program, started during the Bush administration, was rapidly expanded within the first months of Barack Obama's presidency.[6]

Stuxnet specifically targets

nuclear centrifuges.[9] Targeting industrial control systems, the worm infected over 200,000 computers and caused 1,000 machines to physically degrade.[10]

Stuxnet has three modules: a

link file that automatically executes the propagated copies of the worm; and a rootkit component responsible for hiding all malicious files and processes, to prevent detection of Stuxnet.[11] It is typically introduced to the target environment via an infected USB flash drive, thus crossing any air gap. The worm then propagates across the network, scanning for Siemens Step7 software on computers controlling a PLC. In the absence of either criterion, Stuxnet becomes dormant inside the computer. If both the conditions are fulfilled, Stuxnet introduces the infected rootkit onto the PLC and Step7 software, modifying the code and giving unexpected commands to the PLC while returning a loop of normal operation system values back to the users.[12][13]

Discovery

Stuxnet, discovered by Sergey Ulasen from a Belarusian antivirus company

VirusBlokAda, initially spread via Microsoft Windows, and targeted Siemens industrial control systems. While it is not the first time that hackers have targeted industrial systems,[14] nor the first publicly known intentional act of cyberwarfare to be implemented, it is the first discovered malware that spies on and subverts industrial systems,[15] and the first to include a programmable logic controller (PLC) rootkit.[16][17]

The worm initially spreads indiscriminately, but includes a highly specialized malware payload that is designed to target only Siemens supervisory control and data acquisition (SCADA) systems that are configured to control and monitor specific industrial processes.[18][19] Stuxnet infects PLCs by subverting the Step-7 software application that is used to reprogram these devices.[20][21]

Different variants of Stuxnet targeted five Iranian organizations,

nation-state support."[29] F-Secure's chief researcher Mikko Hyppönen, when asked if possible nation-state support were involved, agreed: "That's what it would look like, yes."[30]

In May 2011, the PBS program

Need To Know cited a statement by Gary Samore, White House Coordinator for Arms Control and Weapons of Mass Destruction, in which he said, "we're glad they [the Iranians] are having trouble with their centrifuge machine and that we — the U.S. and its allies — are doing everything we can to make sure that we complicate matters for them," offering "winking acknowledgement" of United States involvement in Stuxnet.[31] According to The Daily Telegraph, a showreel that was played at a retirement party for the head of the Israel Defense Forces (IDF), Gabi Ashkenazi, included references to Stuxnet as one of his operational successes as the IDF chief of staff.[32]

On 1 June 2012, an article in The New York Times reported that Stuxnet was part of a US and Israeli intelligence operation named Operation Olympic Games, devised by the NSA under President George W. Bush and executed under President Barack Obama.[33]

On 24 July 2012, an article by Chris Matyszczyk from CNET[34] reported that the Atomic Energy Organization of Iran e-mailed F-Secure's chief research officer Mikko Hyppönen to report a new instance of malware.

On 25 December 2012, an Iranian semi-official news agency announced there was a cyberattack by Stuxnet, this time on the industries in the southern area of the country. The malware targeted a power plant and some other industries in Hormozgan province in recent months.[35]

According to Eugene Kaspersky, the worm also infected a nuclear power plant in Russia. Kaspersky noted, however, that since the power plant is not connected to the public Internet, the system should remain safe.[36]

History

The worm was first identified by the security company

VirusBlokAda in mid-June 2010.[20] Journalist Brian Krebs's blog posting on 15 July 2010 was the first widely read report on the worm.[37][38] The original name given by VirusBlokAda was "Rootkit.Tmphider;"[39] Symantec, however, called it "W32.Temphid," later changing to "W32.Stuxnet."[40] Its current name is derived from a combination of some keywords in the software (".stub" and "mrxnet.sys").[41][42] The reason for the discovery at this time is attributed to the virus accidentally spreading beyond its intended target (the Natanz plant) due to a programming error introduced in an update; this led to the worm spreading to an engineer's computer that had been connected to the centrifuges and spreading further when the engineer returned home and connected his computer to the internet.[33]

Kaspersky Lab experts at first estimated that Stuxnet started spreading around March or April 2010,

Symantec have uncovered a version of the Stuxnet computer virus that was used to attack Iran's nuclear program in November 2007, being developed as early as 2005, when Iran was still setting up its uranium enrichment facility.[44]

The second variant, with substantial improvements, appeared in March 2010, apparently because its authors believed that Stuxnet was not spreading fast enough; a third, with minor improvements, appeared in April 2010.

IT security organization that Stuxnet, or a variation of the worm, had been traded on the black market.[46]

In 2015, Kaspersky Lab noted that the Equation Group had used two of the same zero-day attacks prior to their use in Stuxnet, in another malware called fanny.bmp.[47][48] and commented that "the similar type of usage of both exploits together in different computer worms, at around the same time, indicates that the Equation Group and the Stuxnet developers are either the same or working closely together".[49]

In 2019, Chronicle researchers Juan Andres Guerrero-Saade and Silas Cutler presented evidence of at least four distinct threat actor malware platforms collaborating to create the different versions of Stuxnet.[50][51] The collaboration was dubbed 'GOSSIP GIRL' after a threat group leaked from classified CSE slides that included Flame.[52] GOSSIP GIRL is a cooperative umbrella that includes the Equation Group, Flame, Duqu, and Flowershop (also known as 'Cheshire Cat').[53][54][55]

In 2020, researcher Facundo Muñoz found evidence suggesting that Equation Group collaborated with Stuxnet developers in 2009 by lending them at least one zero-day exploit,[56] and one exploit from 2008[57] that was being actively used in-the-wild by the Conficker computer worm and Chinese hackers.[58] In 2017, a group of hackers known as The Shadow Brokers leaked a massive trove of tools belonging to Equation Group, including new versions of both exploits compiled in 2010, showing significant code overlaps as both Stuxnet's exploits and Equation Group's exploits were developed using a set of libraries called "Exploit Development Framework" also leaked by The Shadow Brokers.

Affected countries

A study of the spread of Stuxnet by

Symantec showed that the main affected countries in the early days of the infection were Iran, Indonesia and India:[59]

Country Share of infected computers
Iran 58.9%
Indonesia 18.2%
India 8.3%
Azerbaijan 2.6%
United States 1.6%
Pakistan 1.3%
Other countries 9.2%

Iran was reported to have fortified its cyberwar abilities following the Stuxnet attack, and has been suspected of retaliatory attacks against United States banks in Operation Ababil.[60]

Operation

Unlike most malware, Stuxnet does little harm to computers and networks that do not meet specific configuration requirements; "The attackers took great care to make sure that only their designated targets were hit ... It was a marksman's job."[61] While the worm is promiscuous, it makes itself inert if Siemens software is not found on infected computers, and contains safeguards to prevent each infected computer from spreading the worm to more than three others, and to erase itself on 24 June 2012.[38]

For its targets, Stuxnet contains, among other things, code for a man-in-the-middle attack that fakes industrial process control sensor signals so an infected system does not shut down due to detected abnormal behavior.[38][61][62] Such complexity is very unusual for malware. The worm consists of a layered attack against three different systems:

  1. The Windows operating system,
  2. Siemens PCS 7, WinCC and STEP7 industrial software applications that run on Windows and
  3. One or more Siemens S7 PLCs.

Windows infection

Stuxnet attacked Windows systems using an unprecedented four

malware creators do not typically make use of (and thus simultaneously make visible) four different zero-day exploits in the same worm.[23] Amongst these exploits were remote code execution on a computer with Printer Sharing enabled,[68] and the LNK/PIF vulnerability,[69] in which file execution is accomplished when an icon is viewed in Windows Explorer, negating the need for user interaction.[70] Stuxnet is unusually large at half a megabyte in size,[65] and written in several different programming languages (including C and C++) which is also irregular for malware.[15][20][62] The Windows component of the malware is promiscuous in that it spreads relatively quickly and indiscriminately.[45]

The malware has both user mode and kernel mode rootkit ability under Windows,[67] and its device drivers have been digitally signed with the private keys of two public key certificates that were stolen from separate well-known companies, JMicron and Realtek, both located at Hsinchu Science Park in Taiwan.[45][65] The driver signing helped it install kernel mode rootkit drivers successfully without users being notified, and thus it remained undetected for a relatively long period of time.[71] Both compromised certificates have been revoked by Verisign.

Two websites in Denmark and Malaysia were configured as

DNS service provider to Dynadot as part of a global effort to disable the malware.[67][38]

Step 7 software infection

Overview of normal communications between Step 7 and a Siemens PLC
Overview of Stuxnet hijacking communication between Step 7 software and a Siemens PLC

According to researcher Ralph Langner,[72][73] once installed on a Windows system, Stuxnet infects project files belonging to Siemens' WinCC/PCS 7 SCADA control software[74] (Step 7), and subverts a key communication library of WinCC called s7otbxdx.dll. Doing so intercepts communications between the WinCC software running under Windows and the target Siemens PLC devices, when the two are connected via a data cable. The malware is able to modify the code on PLC devices unnoticed, and subsequently to mask its presence from WinCC if the control software attempts to read an infected block of memory from the PLC system.[67]

The malware furthermore used a zero-day exploit in the WinCC/SCADA database software in the form of a hard-coded database password.[75]

PLC infection

Siemens Simatic S7-300 PLC CPU with three I/O modules attached

Stuxnet's payload targets only those SCADA configurations that meet criteria that it is programmed to identify.[38]

Stuxnet requires specific slave variable-frequency drives (frequency converter drives) to be attached to the targeted Siemens S7-300 system and its associated modules. It only attacks those PLC systems with variable-frequency drives from two specific vendors: Vacon based in Finland and Fararo Paya based in Iran.[76] Furthermore, it monitors the frequency of the attached motors, and only attacks systems that spin between 807 Hz and 1,210 Hz. This is a much higher frequency than motors typically operate at in most industrial applications, with the notable exception of gas centrifuges.[76] Stuxnet installs malware into memory block DB890 of the PLC that monitors the Profibus messaging bus of the system.[67] When certain criteria are met, it periodically modifies the frequency to 1,410 Hz and then to 2 Hz and then to 1,064 Hz, and thus affects the operation of the connected motors by changing their rotational speed.[76] It also installs a rootkit – the first such documented case on this platform – that hides the malware on the system and masks the changes in rotational speed from monitoring systems.

Removal

Siemens has released a detection and removal tool for Stuxnet. Siemens recommends contacting customer support if an infection is detected and advises installing Microsoft updates for security vulnerabilities and prohibiting the use of third-party USB flash drives.[77] Siemens also advises immediately upgrading password access codes.[78]

The worm's ability to reprogram external PLCs may complicate the removal procedure. Symantec's Liam O'Murchu warns that fixing Windows systems may not fully solve the infection; a thorough audit of PLCs may be necessary. Despite speculation that incorrect removal of the worm could cause damage,[15] Siemens reports that in the first four months since discovery, the malware was successfully removed from the systems of 22 customers without any adverse effects.[77][79]

Control system security

Prevention of control system security incidents,[80] such as from viral infections like Stuxnet, is a topic that is being addressed in both the public and the private sector.

The US Department of Homeland Security

Industrial Control Systems Cyber Emergency Response Team (ICS-CERT), conducts a biannual conference (ICSJWG), provides training, publishes recommended practices, and provides a self-assessment tool. As part of a Department of Homeland Security plan to improve American computer security, in 2008 it and the Idaho National Laboratory (INL) worked with Siemens to identify security holes in the company's widely used Process Control System 7 (PCS 7) and its software Step 7. In July 2008, INL and Siemens publicly announced flaws in the control system at a Chicago conference; Stuxnet exploited these holes in 2009.[61]

Several industry organizations

intrusion prevention system (IPS). The standards and best practices[who?] also all[improper synthesis?] recommend starting with a risk analysis and a control system security assessment.[87][88]

Target and origin

Experts believe that Stuxnet required the largest and costliest development effort in malware history.

Symantec estimates that the group developing Stuxnet would have consisted of between five and thirty people, and would have taken six months to prepare.[89][38] The Guardian, the BBC and The New York Times all claimed that (unnamed) experts studying Stuxnet believe the complexity of the code indicates that only a nation-state would have the abilities to produce it.[23][89][90] The self-destruct and other safeguards within the code implied that a Western government was responsible, or at least is responsible for its development.[38] However, software security expert Bruce Schneier initially condemned the 2010 news coverage of Stuxnet as hype, stating that it was almost entirely based on speculation.[91] But after subsequent research, Schneier stated in 2012 that "we can now conclusively link Stuxnet to the centrifuge structure at the Natanz nuclear enrichment lab in Iran".[92]

In January 2024, de Volkskrant reported that Dutch engineer Erik van Sabben was the saboteur who had infiltrated the underground nuclear complex in the city of Natanz and installed equipment infected with Stuxnet.[93]

Iran as a target

Ralph Langner, the researcher who identified that Stuxnet infected PLCs,[21] first speculated publicly in September 2010 that the malware was of Israeli origin, and that it targeted Iranian nuclear facilities.[94] However Langner more recently, at a TED conference, recorded in February 2011, stated that, "My opinion is that the Mossad is involved, but that the leading force is not Israel. The leading force behind Stuxnet is the cyber superpower – there is only one; and that's the United States."[95] Kevin Hogan, Senior Director of Security Response at Symantec, reported that most infected systems were in Iran (about 60%),[96] which has led to speculation that it may have been deliberately targeting "high-value infrastructure" in Iran[23] including either the Bushehr Nuclear Power Plant or the Natanz nuclear facility.[65][97][98] Langner called the malware "a one-shot weapon" and said that the intended target was probably hit,[99] although he admitted this was speculation.[65] Another German researcher and spokesman of the German-based Chaos Computer Club, Frank Rieger, was the first to speculate that Natanz was the target.[38]

Natanz nuclear facilities

Anti-aircraft guns
guarding Natanz Nuclear Facility

According to the Israeli newspaper Haaretz, in September 2010 experts on Iran and computer security specialists were increasingly convinced that Stuxnet was meant "to sabotage the uranium enrichment facility at Natanz – where the centrifuge operational capacity had dropped over the past year by 30 percent."[100] On 23 November 2010 it was announced that uranium enrichment at Natanz had ceased several times because of a series of major technical problems.[101] A "serious nuclear accident" (supposedly the shutdown of some of its centrifuges[102]) occurred at the site in the first half of 2009, which is speculated to have forced Gholam Reza Aghazadeh, the head of the Atomic Energy Organization of Iran (AEOI), to resign.[103] Statistics published by the Federation of American Scientists (FAS) show that the number of enrichment centrifuges operational in Iran mysteriously declined from about 4,700 to about 3,900 beginning around the time the nuclear incident WikiLeaks mentioned would have occurred.[104] The Institute for Science and International Security (ISIS) suggests, in a report published in December 2010, that Stuxnet is a reasonable explanation for the apparent damage[105] at Natanz, and may have destroyed up to 1,000 centrifuges (10 percent) sometime between November 2009 and late January 2010. The authors conclude:

The attacks seem designed to force a change in the centrifuge’s rotor speed, first raising the speed and then lowering it, likely with the intention of inducing excessive vibrations or distortions that would destroy the centrifuge. If its goal was to quickly destroy all the centrifuges in the FEP [Fuel Enrichment Plant], Stuxnet failed. But if the goal was to destroy a more limited number of centrifuges and set back Iran’s progress in operating the FEP, while making detection difficult, it may have succeeded, at least temporarily.[105]

The Institute for Science and International Security (ISIS) report further notes that Iranian authorities have attempted to conceal the breakdown by installing new centrifuges on a large scale.[105][106]

The worm worked by first causing an infected Iranian IR-1 centrifuge to increase from its normal operating speed of 1,064 hertz to 1,410 hertz for 15 minutes before returning to its normal frequency. Twenty-seven days later, the worm went back into action, slowing the infected centrifuges down to a few hundred hertz for a full 50 minutes. The stresses from the excessive, then slower, speeds caused the aluminium centrifugal tubes to expand, often forcing parts of the centrifuges into sufficient contact with each other to destroy the machine.[107]

According to The Washington Post, International Atomic Energy Agency (IAEA) cameras installed in the Natanz facility recorded the sudden dismantling and removal of approximately 900–1,000 centrifuges during the time the Stuxnet worm was reportedly active at the plant. Iranian technicians, however, were able to quickly replace the centrifuges and the report concluded that uranium enrichment was likely only briefly disrupted.[108]

On 15 February 2011, the Institute for Science and International Security released a report concluding that:

Assuming Iran exercises caution, Stuxnet is unlikely to destroy more centrifuges at the Natanz plant. Iran likely cleaned the malware from its control systems. To prevent re-infection, Iran will have to exercise special caution since so many computers in Iran contain Stuxnet. Although Stuxnet appears to be designed to destroy centrifuges at the Natanz facility, destruction was by no means total. Moreover, Stuxnet did not lower the production of

low enriched uranium (LEU) during 2010. LEU quantities could have certainly been greater, and Stuxnet could be an important part of the reason why they did not increase significantly. Nonetheless, there remain important questions about why Stuxnet destroyed only 1,000 centrifuges. One observation is that it may be harder to destroy centrifuges by use of cyber attacks than often believed.[109]

Iranian reaction

The

Iranian Students News Agency released a statement on 24 September 2010 stating that experts from the Atomic Energy Organization of Iran met in the previous week to discuss how Stuxnet could be removed from their systems.[19] According to analysts, such as David Albright, Western intelligence agencies had been attempting to sabotage the Iranian nuclear program for some time.[110][111]

The head of the Bushehr Nuclear Power Plant told Reuters that only the personal computers of staff at the plant had been infected by Stuxnet and the state-run newspaper Iran Daily quoted Reza Taghipour, Iran's telecommunications minister, as saying that it had not caused "serious damage to government systems".[90] The Director of Information Technology Council at the Iranian Ministry of Industries and Mines, Mahmud Liaii, has said that: "An electronic war has been launched against Iran... This computer worm is designed to transfer data about production lines from our industrial plants to locations outside Iran."[112]

In response to the infection, Iran assembled a team to combat it. With more than 30,000 IP addresses affected in Iran, an official said that the infection was fast spreading in Iran and the problem had been compounded by the ability of Stuxnet to mutate. Iran had set up its own systems to clean up infections and had advised against using the Siemens SCADA antivirus since it is suspected that the antivirus contains embedded code which updates Stuxnet instead of removing it.[113][114][115][116]

According to Hamid Alipour, deputy head of Iran's government Information Technology Company, "The attack is still ongoing and new versions of this virus are spreading." He reported that his company had begun the cleanup process at Iran's "sensitive centres and organizations."[114] "We had anticipated that we could root out the virus within one to two months, but the virus is not stable, and since we started the cleanup process three new versions of it have been spreading", he told the Islamic Republic News Agency on 27 September 2010.[116]

On 29 November 2010, Iranian president Mahmoud Ahmadinejad stated for the first time that a computer virus had caused problems with the controller handling the centrifuges at its Natanz facilities. According to Reuters, he told reporters at a news conference in Tehran, "They succeeded in creating problems for a limited number of our centrifuges with the software they had installed in electronic parts."[117][118]

On the same day two Iranian nuclear scientists were targeted in separate, but nearly simultaneous car bomb attacks near

Tehran University, was killed in a similar bomb explosion.[119] On 11 January 2012, a director of the Natanz nuclear enrichment facility, Mostafa Ahmadi Roshan, was killed in an attack quite similar to the one that killed Shahriari.[120]

An analysis by the FAS demonstrates that Iran's enrichment capacity grew during 2010. The study indicated that Iran's centrifuges appeared to be performing 60% better than in the previous year, which would significantly reduce Tehran's time to produce bomb-grade uranium. The FAS report was reviewed by an official with the IAEA who affirmed the study.[121][122][123]

European and US officials, along with private experts, told Reuters that Iranian engineers were successful in neutralizing and purging Stuxnet from their country's nuclear machinery.[124]

Given the growth in Iranian enrichment ability in 2010, the country may have intentionally put out misinformation to cause Stuxnet's creators to believe that the worm was more successful in disabling the Iranian nuclear program than it actually was.[38]

Israel

Office of Homeland Security.[128][90] Yossi Melman, who covers intelligence for Israeli newspaper Haaretz and wrote a book about Israeli intelligence, also suspected that Israel was involved, noting that Meir Dagan, the former (up until 2011) head of the national intelligence agency Mossad, had his term extended in 2009 because he was said to be involved in important projects. Additionally, in 2010 Israel grew to expect that Iran would have a nuclear weapon in 2014 or 2015 – at least three years later than earlier estimates – without the need for an Israeli military attack on Iranian nuclear facilities; "They seem to know something, that they have more time than originally thought", he added.[27][61] Israel has not publicly commented on the Stuxnet attack but in 2010 confirmed that cyberwarfare was now among the pillars of its defense doctrine, with a military intelligence unit set up to pursue both defensive and offensive options.[129][130][131] When questioned whether Israel was behind the virus in the fall of 2010, some Israeli officials[who?] broke into "wide smiles", fueling speculation that the government of Israel was involved with its genesis.[132] American presidential advisor Gary Samore also smiled when Stuxnet was mentioned,[61] although American officials have suggested that the virus originated abroad.[132] According to The Telegraph, Israeli newspaper Haaretz reported that a video celebrating operational successes of Gabi Ashkenazi, retiring Israel Defense Forces (IDF) Chief of Staff, was shown at his retirement party and included references to Stuxnet, thus strengthening claims that Israel's security forces were responsible.[133]

In 2009, a year before Stuxnet was discovered, Scott Borg of the United States Cyber-Consequences Unit (US-CCU)

Some have also cited several clues in the code such as a concealed reference to the word MYRTUS, believed to refer to the

Holocaust.[38] Such data is not conclusive, since, as noted by Symantec, "...attackers would have the natural desire to implicate another party".[67]

United States

There has also been reports on the involvement of the United States and its collaboration with Israel,[142][143] with one report stating that "there is vanishingly little doubt that [it] played a role in creating the worm."[38] It has been reported that the United States, under one of its most secret programs, initiated by the Bush administration and accelerated by the Obama administration,[144] has sought to destroy Iran's nuclear program by novel methods such as undermining Iranian computer systems. A leaked diplomatic cable showed how the United States was advised to target Iran's nuclear abilities through 'covert sabotage'.[145] An article in The New York Times in January 2009 credited a then-unspecified program with preventing an Israeli military attack on Iran where some of the efforts focused on ways to destabilize the centrifuges.[146] A Wired article claimed that Stuxnet "is believed to have been created by the United States".[147] Dutch historian Peter Koop speculated that the Tailored Access Operations could have developed Stuxnet, possibly in collaboration with Israel.[148]

The fact that John Bumgarner, a former intelligence officer and member of the United States Cyber-Consequences Unit (US-CCU), published an article prior to Stuxnet being discovered or deciphered, that outlined a strategic cyber strike on centrifuges[149] and suggests that cyber attacks are permissible against nation states which are operating uranium enrichment programs that violate international treaties gives some credibility to these claims. Bumgarner pointed out that the centrifuges used to process fuel for nuclear weapons are a key target for cybertage operations and that they can be made to destroy themselves by manipulating their rotational speeds.[150]

In a March 2012 interview with

Department of Homeland Security noted that the Stuxnet source code could now be downloaded online and modified to be directed at new target systems. Speaking of the Stuxnet creators, he said, "They opened the box. They demonstrated the capability... It's not something that can be put back."[151]

Joint effort and other states and targets

In April 2011, Iranian government official Gholam Reza Jalali stated that an investigation had concluded that the United States and Israel were behind the Stuxnet attack.[152] Frank Rieger stated that three European countries' intelligence agencies agreed that Stuxnet was a joint United States-Israel effort. The code for the Windows injector and the PLC payload differ in style, likely implying collaboration. Other experts believe that a US-Israel cooperation is unlikely because "the level of trust between the two countries' intelligence and military establishments is not high."[38]

A Wired magazine article about US General Keith B. Alexander stated: "And he and his cyber warriors have already launched their first attack. The cyber weapon that came to be known as Stuxnet was created and built by the NSA in partnership with the CIA and Israeli intelligence in the mid-2000s."[153]

China,[154] Jordan, and France are other possibilities, and Siemens may have also participated.[38][142] Langner speculated that the infection may have spread from USB drives belonging to Russian contractors since the Iranian targets were not accessible via the Internet.[21][155] In 2019, it was reported that an Iranian mole working for Dutch intelligence at the behest of Israel and the CIA inserted the Stuxnet virus with a USB flash drive or convinced another person working at the Natanz facility to do so.[156][157]

Sandro Gaycken from the

Free University Berlin argued that the attack on Iran was a ruse to distract from Stuxnet's real purpose. According to him, its broad dissemination in more than 100,000 industrial plants worldwide suggests a field test of a cyber weapon in different security cultures, testing their preparedness, resilience, and reactions, all highly valuable information for a cyberwar unit.[158]

The United Kingdom has denied involvement in the worm's creation.[159]

In July 2013, Edward Snowden claimed that Stuxnet was cooperatively developed by the United States and Israel.[160]

Deployment in North Korea

According to a report by Reuters, the NSA also tried to sabotage

A.Q. Khan. The effort failed, however, because North Korea's extreme secrecy and isolation made it impossible to introduce Stuxnet into the nuclear facility.[161]

Stuxnet 2.0 cyberattack

In 2018, Gholamreza Jalali, Iran's chief of the National Passive Defence Organisation (NPDO), claimed that his country fended off a Stuxnet-like attack targeting the country's telecom infrastructure. Iran's Telecommunications minister Mohammad-Javad Azari Jahromi has since accused Israel of orchestrating the attack. Iran plans to sue Israel through the International Court of Justice (ICJ) and is also willing to launch a retaliation attack if Israel does not desist.[162]

Related malware

"Stuxnet's Secret Twin"

A November 2013 article[163] in Foreign Policy magazine claims existence of an earlier, much more sophisticated attack on the centrifuge complex at Natanz, focused on increasing centrifuge failure rate over a long time period by stealthily inducing uranium hexafluoride gas overpressure incidents. This malware was capable of spreading only by being physically installed, probably by previously contaminated field equipment used by contractors working on Siemens control systems within the complex. It is not clear whether this attack attempt was successful, but it being followed by a different, simpler and more conventional attack is indicative.

Duqu

On 1 September 2011, a new worm was found, thought to be related to Stuxnet. The Laboratory of Cryptography and System Security (CrySyS) of the

Symantec, based on this report, continued the analysis of the threat, calling it "nearly identical to Stuxnet, but with a completely different purpose", and published a detailed technical paper.[166] The main component used in Duqu is designed to capture information[62] such as keystrokes and system information. The exfiltrated data may be used to enable a future Stuxnet-like attack. On 28 December 2011, Kaspersky Lab's director of global research and analysis spoke to Reuters about recent research results showing that the platform Stuxnet and Duqu both originated in 2007, and is being referred to as Tilded due to the ~d at the beginning of the file names. Also uncovered in this research was the possibility for three more variants based on the Tilded platform.[167]

Flame

In May 2012, the new malware "Flame" was found, thought to be related to Stuxnet.[168] Researchers named the program "Flame" after the name of one of its modules.[168] After analysing the code of Flame, Kaspersky Lab said that there is a strong relationship between Flame and Stuxnet. An early version of Stuxnet contained code to propagate infections via USB drives that is nearly identical to a Flame module that exploits the same vulnerability.[169]

Targeting military command, control, communications and intelligence

Former U.S. Secretary of Defense William J. Perry and Tom Z. Collina, Director of Policy at the Ploughshares Fund, wrote that there are thousands and maybe millions of attacks each day on the U.S. military's use of the internet and similar DoD-only communications. If a cybersecurity attack on any nuclear-weapon state does what the U.S. and Israel reportedly did to Iran with Stuxnet, it could convince the leaders of that country that they were being attacked with nuclear weapons when they weren't. This could lead them to start a nuclear war by mistake, believing that they could lose the ability to respond appropriately if they waited for more information.[170]

If the country targeted with such a cybersecurity attack were India or Pakistan, the resulting nuclear war would likely produce a nuclear autumn during which roughly a quarter of humanity, most of whom were not directly impacted by nuclear explosions, could starve to death if they did not die of something else sooner.[171] If the United States, Russia or China (or maybe even the United Kingdom or France) experienced such a cybersecurity attack, the resulting nuclear war would likely produce a nuclear winter, during which 98 percent of humanity would die of starvation if they did not succumb to something else sooner.[172][relevant?]

Perry and Collina also noted that a nuclear war by accident is much more likely than Russia launching a first strike on the United States. They claimed that the world's major nuclear arsenals are focusing on the wrong problem. They cited several sources to support this claim including a GAO study that found that many advanced weapon systems in the U.S. use commercial and free software without changing the default passwords. Hackers working for the GAO were able to penetrate DoD systems undetected in part using default passwords found on the internet.[173][relevant?]

Media coverage

Since 2010, there has been extensive international media coverage on Stuxnet and its aftermath. In early commentary, The Economist pointed out that Stuxnet was "a new kind of cyber-attack."[174] On 8 July 2011, Wired then published an article detailing how network security experts were able to decipher the origins of Stuxnet. In that piece, Kim Zetter claimed that Stuxnet's "cost–benefit ratio is still in question."[175] Later commentators tended to focus on the strategic significance of Stuxnet as a cyber weapon. Following the Wired piece, Holger Stark called Stuxnet the "first digital weapon of geopolitical importance, it could change the way wars are fought."[176] Meanwhile, Eddie Walsh referred to Stuxnet as "the world's newest high-end asymmetric threat."[177] Ultimately, some claim that the "extensive media coverage afforded to Stuxnet has only served as an advertisement for the vulnerabilities used by various cybercriminal groups."[178] While that may be the case, the media coverage has also increased awareness of cyber security threats.

Alex Gibney's 2016 documentary Zero Days covers the phenomenon around Stuxnet.[179] A zero-day (also known as 0-day) vulnerability is a computer-software vulnerability that is unknown to, or unaddressed by, those who should be interested in mitigating the vulnerability (including the vendor of the target software). Until the vulnerability is mitigated, hackers can exploit it to adversely affect computer programs, data, additional computers or a network.

In 2016, it was revealed that General James Cartwright, the former head of the U.S. Strategic Command, had leaked information related to Stuxnet. He later pleaded guilty for lying to FBI agents pursuing an investigation into the leak.[180][181] On 17 January 2017, he was granted a full pardon in this case by President Obama, thus expunging his conviction.

In popular culture

Besides the aforementioned Alex Gibney documentary Zero Days (2016), which looks into the malware and the cyberwarfare surrounding it, other works which reference Stuxnet include:

  • In Castle, season 8, episode 18 "Backstabber" Stuxnet is revealed to have been (fictionally) created by MI6, and a version of it is used to take down the London power grid.
  • Trojan Horse is a novel written by Windows utility writer and novelist Mark Russinovich. It features the usage of the Stuxnet virus as a main plot line for the story, and the attempt of Iran to bypass it.
  • In Ghost in the Shell: Arise, Stuxnet is the named type of computer virus which infected Kusanagi and Manamura allowing false memories to be implanted.
  • In July 2017, MRSA (Mat Zo) released a track named "Stuxnet" through Hospital Records.
  • In Ubisoft's 2013 video game Tom Clancy's Splinter Cell: Blacklist, the protagonist, Sam Fisher, makes use of a mobile, airborne headquarters ("Paladin") which is said at one point within the game's story mode to have been targeted by a Stuxnet-style virus, causing its systems to fail and the plane to careen towards the ocean, and would have crashed without Fisher's intervening.[182]
  • In Michael Mann's 2015 movie Blackhat, the code shown as belonging to a virus used by a hacker to cause the coolant pumps explosion in a nuclear plant in Chai Wan, Hong Kong, is actual Stuxnet decompiled code.
  • In the third episode of Star Trek: Discovery, "Context Is for Kings", characters identify a segment of code as being part of an experimental transportation system. The code shown is decompiled Stuxnet code.[183] Much of the same code is shown in the eighth episode of The Expanse, "Pyre", this time as a visual representation of a "diagnostic exploit" breaking into the control software for nuclear missiles.

See also

References

  1. Symantec. November 2010. Archived from the original
    (PDF) on 4 November 2019.
  2. ^ from the original on 7 February 2022. Retrieved 13 November 2021.
  3. ^ "Confirmed: US and Israel created Stuxnet, lost control of it". Ars Technica. June 2012. Archived from the original on 6 May 2019. Retrieved 15 June 2017.
  4. ^ Ellen Nakashima (2 June 2012). "Stuxnet was work of U.S. and Israeli experts, officials say". The Washington Post. Archived from the original on 4 May 2019. Retrieved 8 September 2015.
  5. ProQuest 2283858753. Archived
    from the original on 15 March 2023. Retrieved 23 March 2023.
  6. from the original on 1 June 2012. Retrieved 3 October 2022.
  7. from the original on 25 November 2014. Retrieved 12 April 2014.
  8. . Retrieved 23 March 2023.
  9. ^ Kelley, Michael (20 November 2013). "The Stuxnet Attack on Iran's Nuclear Plant Was 'Far More Dangerous' Than Previously Thought". Business Insider. Archived from the original on 9 May 2014. Retrieved 8 February 2014.
  10. ^ "Sheep dip your removable storage devices to reduce the threat of cyber attacks". www.mac-solutions.net. Archived from the original on 4 September 2017. Retrieved 26 July 2017.
  11. ^ "STUXNET Malware Targets SCADA Systems". Trend Micro. January 2012. Archived from the original on 13 April 2014. Retrieved 12 April 2014.
  12. ^ Gross, Michael Joseph (April 2011). "A Declaration of Cyber-War". Vanity Fair. Archived from the original on 31 August 2021. Retrieved 31 December 2015.
  13. ^ "Exploring Stuxnet's PLC Infection Process". Symantec. 23 January 2014. Archived from the original on 21 June 2021. Retrieved 22 September 2010.
  14. ^ "Building a Cyber Secure Plant". Siemens. 30 September 2010. Archived from the original on 21 April 2021. Retrieved 5 December 2010.
  15. ^ a b c d e McMillan, Robert (16 September 2010). "Siemens: Stuxnet worm hit industrial systems". Computerworld. Archived from the original on 20 February 2019. Retrieved 16 September 2010. {{cite magazine}}: Unknown parameter |agency= ignored (help)
  16. ^ "Last-minute paper: An indepth look into Stuxnet". Virus Bulletin. Archived from the original on 9 December 2021.
  17. ^ "Stuxnet worm hits Iran nuclear plant staff computers". BBC News. 26 September 2010. Archived from the original on 16 July 2017.
  18. ^ Nicolas Falliere (6 August 2010). "Stuxnet Introduces the First Known Rootkit for Industrial Control Systems". Symantec. Archived from the original on 11 September 2012. Retrieved 9 February 2011.
  19. ^ a b "Iran's Nuclear Agency Trying to Stop Computer Worm". Tehran. Associated Press. 25 September 2010. Archived from the original on 25 September 2010. Retrieved 25 September 2010.
  20. ^ a b c d e Keizer, Gregg (16 September 2010). "Is Stuxnet the 'best' malware ever?". InfoWorld. Archived from the original on 5 May 2021. Retrieved 16 September 2010.
  21. ^ a b c d e Cherry, Steven; Langner, Ralph (13 October 2010). "How Stuxnet Is Rewriting the Cyberterrorism Playbook". IEEE Spectrum. Archived from the original on 14 April 2021. Retrieved 2 February 2020.
  22. ^ "Stuxnet Virus Targets and Spread Revealed". BBC News. 15 February 2011. Archived from the original on 25 November 2021. Retrieved 17 February 2011.
  23. ^ a b c d Fildes, Jonathan (23 September 2010). "Stuxnet worm 'targeted high-value Iranian assets'". BBC News. Archived from the original on 24 September 2010. Retrieved 23 September 2010.
  24. ^ Beaumont, Claudine (23 September 2010). "Stuxnet virus: worm 'could be aimed at high-profile Iranian targets'". The Daily Telegraph. London. Archived from the original on 12 January 2022. Retrieved 28 September 2010.
  25. ^ MacLean, William (24 September 2010). "Update 2-Cyber attack appears to target Iran-tech firms". Reuters. Archived from the original on 14 November 2021. Retrieved 2 July 2017.
  26. ^ "Iran Confirms Stuxnet Worm Halted Centrifuges". CBS News. 29 November 2010. Archived from the original on 12 May 2022. Retrieved 12 May 2022.
  27. ^ a b Bronner, Ethan; Broad, William J. (29 September 2010). "In a Computer Worm, a Possible Biblical Clue". The New York Times. Archived from the original on 25 September 2022. Retrieved 2 October 2010.
  28. ^ "Software smart bomb fired at Iranian nuclear plant: Experts". Economictimes.indiatimes.com. 24 September 2010. Archived from the original on 14 November 2021. Retrieved 28 September 2010.
  29. ^ "Kaspersky Lab provides its insights on Stuxnet worm". Kaspersky. Russia. 24 September 2010. Archived from the original on 16 November 2021. Retrieved 7 November 2011.
  30. ^ "Stuxnet Questions and Answers – F-Secure Weblog". F-Secure. Finland. 1 October 2010. Archived from the original on 5 May 2021.
  31. ^ Gary Samore Archived 27 April 2018 at the Wayback Machine speaking at the 10 December 2010 Washington Forum of the Foundation for Defense of Democracies in Washington DC, reported by C-Span and contained in the PBS program Need to Know ("Cracking the code: Defending against the superweapons of the 21st century cyberwar", 4 minutes into piece)
  32. ^ Williams, Christopher (15 February 2011). "Israel video shows Stuxnet as one of its successes". London: Telegraph.co.uk. Archived from the original on 12 January 2022. Retrieved 14 February 2012.
  33. ^ a b Sanger, David E. (1 June 2012). "Obama Order Sped Up Wave of Cyberattacks Against Iran". The New York Times. Archived from the original on 25 February 2017. Retrieved 1 June 2012.
  34. ^ Matyszczyk, Chris (24 July 2012). "Thunderstruck! A tale of malware, AC/DC, and Iran's nukes". CNET. Archived from the original on 17 February 2022. Retrieved 8 July 2013.
  35. ^ "Iran 'fends off new Stuxnet cyber attack'". BBC News. 25 December 2012. Archived from the original on 7 August 2016. Retrieved 28 May 2015.
  36. ^ Shamah, David (11 November 2013). "Stuxnet, gone rogue, hit Russian nuke plant, space station". The Times of Israel. Archived from the original on 20 September 2017. Retrieved 12 November 2013.
  37. ^ Krebs, Brian (17 July 2010). "Experts Warn of New Windows Shortcut Flaw". Krebs on Security. Archived from the original on 2 September 2022. Retrieved 3 March 2011.
  38. ^ a b c d e f g h i j k l m n o p Gross, Michael Joseph (April 2011). "A Declaration of Cyber-War". Vanity Fair. Condé Nast. Archived from the original on 31 August 2021. Retrieved 31 December 2015.
  39. ^ "Rootkit.TmpHider". wilderssecurity.com. Wilders Security Forums. Archived from the original on 15 December 2013. Retrieved 25 March 2014.
  40. Symantec. Archived
    from the original on 4 January 2012. Retrieved 25 March 2014.
  41. ^ Zetter, Kim (11 July 2011). "How digital detectives deciphered Stuxnet, the most menacing malware in history". arstechnica.com. Archived from the original on 14 May 2022. Retrieved 25 March 2014.
  42. ^ Karl (26 October 2011). "Stuxnet opens cracks in Iran nuclear program". abc.net.au. ABC. Archived from the original on 24 February 2021. Retrieved 25 March 2014.
  43. ^ Gostev, Alexander (26 September 2010). "Myrtus and Guava: the epidemic, the trends, the numbers". Archived from the original on 1 January 2011. Retrieved 22 January 2011.
  44. ^ Finkle, Jim (26 February 2013). "Researchers say Stuxnet was deployed against Iran in 2007". Reuters. Archived from the original on 15 August 2021. Retrieved 6 July 2021.
  45. ^ a b c d Aleksandr Matrosov; Eugene Rodionov; David Harley & Juraj Malcho. "Stuxnet Under the Microscope, Revision 1.31" (PDF). Archived from the original (PDF) on 22 January 2022. Retrieved 6 September 2019.
  46. ^ Kiley, Sam (25 November 2010). "Super Virus A Target For Cyber Terrorists". Archived from the original on 28 November 2010. Retrieved 25 November 2010.
  47. ^ "A Fanny Equation: "I am your father, Stuxnet"". Kaspersky Lab. 17 February 2015. Archived from the original on 15 April 2016. Retrieved 24 November 2015.
  48. ^ "fanny.bmp code - at GitHub". GitHub. 23 October 2021. Archived from the original on 3 February 2021. Retrieved 15 February 2021.
  49. ^ "Equation Group Questions and Answers" (PDF). securelist.com. Archived from the original (PDF) on 17 February 2015.
  50. ^ Seals, Tara (9 April 2019). "SAS 2019: Stuxnet-Related APTs Form Gossip Girl, an 'Apex Threat Actor'". threatpost.com. Archived from the original on 28 July 2020. Retrieved 6 August 2020.
  51. ^ Chronicle (12 April 2019). "Who is GOSSIPGIRL?". Medium. Archived from the original on 22 July 2020. Retrieved 15 July 2020.
  52. ^ "CSEC SIGINT Cyber Discovery: Summary of the current effort" (PDF). Electrospaces. November 2010. Archived from the original (PDF) on 23 March 2015.
  53. ^ Bencsáth, Boldizsár. "Territorial Dispute – NSA's perspective on APT landscape" (PDF). Archived from the original (PDF) on 10 January 2022.
  54. ^ Marschalek, Marion; Guarnieri, Claudio. "Big Game Hunting: The Peculiarities of Nation-State Malware Research". YouTube. Archived from the original on 21 December 2021.
  55. ^ Barth, Bradley (10 April 2019). "GOSSIPGIRL – Stuxnet group had '4th man;' unknown version of Flame & Duqu found". Archived from the original on 6 August 2020.
  56. ^ BetaFred. "Microsoft Security Bulletin MS10-061 - Critical". docs.microsoft.com. Archived from the original on 6 October 2020. Retrieved 29 September 2020.
  57. ^ BetaFred. "Microsoft Security Bulletin MS08-067 - Critical". docs.microsoft.com. Archived from the original on 6 December 2020. Retrieved 29 September 2020.
  58. ^ fmm (28 September 2020). "The Emerald Connection: EquationGroup collaboration with Stuxnet". Facundo Muñoz Research. Archived from the original on 30 September 2020. Retrieved 29 September 2020.
  59. Symantec. 17 September 2010. Archived
    from the original on 4 January 2012. Retrieved 2 March 2011.
  60. ^ "Iran denies hacking into American banks Archived 24 September 2015 at the Wayback Machine" Reuters, 23 September 2012
  61. ^ a b c d e f g Broad, William J.; Markoff, John; Sanger, David E. (15 January 2011). "Israel Tests on Worm Called Crucial in Iran Nuclear Delay". New York Times. Archived from the original on 20 September 2011. Retrieved 16 January 2011.
  62. ^ a b c Steven Cherry; with Larry Constantine (14 December 2011). "Sons of Stuxnet". IEEE Spectrum. Archived from the original on 14 April 2021. Retrieved 2 February 2020.
  63. ^ "Conficker Worm: Help Protect Windows from Conficker". Microsoft. 10 April 2009. Archived from the original on 18 May 2018. Retrieved 6 December 2010.
  64. ^ Buda, Alex (4 December 2016). "Creating Malware using the Stuxnet LNK Exploit". Ruby Devices. Archived from the original on 18 March 2017. Retrieved 18 March 2017.
  65. ^ a b c d e f Kim Zetter (23 September 2010). "Blockbuster Worm Aimed for Infrastructure, But No Proof Iran Nukes Were Target". Wired. Archived from the original on 5 November 2016. Retrieved 4 November 2016.
  66. Symantec. Archived
    from the original on 17 January 2019. Retrieved 24 September 2010.
  67. ^ a b c d e f g "W32.Stuxnet Dossier" (PDF). Symantec Corporation. Archived (PDF) from the original on 7 July 2012. Retrieved 1 October 2010.
  68. ^ Microsoft (14 September 2010). "Microsoft Security Bulletin MS10-061 – Critical". Microsoft. Archived from the original on 20 March 2015. Retrieved 20 August 2015.
  69. ^ Microsoft (2 August 2010). "Microsoft Security Bulletin MS10-046 – Critical". Microsoft. Archived from the original on 12 August 2015. Retrieved 20 August 2015.
  70. ^ Gostev, Alexander (14 September 2010). "Myrtus and Guava, Episode MS10-061". Kaspersky Lab. Archived from the original on 23 August 2015. Retrieved 20 August 2015.
  71. ^ "Kaspersky Lab provides its insights on Stuxnet worm". Kaspersky Lab. 24 September 2010. Archived from the original on 16 November 2021. Retrieved 27 September 2010.
  72. ^ Gross, Michael Joseph (April 2011). "A Declaration of Cyber-War". Vanity Fair. Archived from the original on 31 August 2021. Retrieved 4 March 2011.
  73. ^ Langner, Ralph (14 September 2010). "Ralph's Step-By-Step Guide to Get a Crack at Stuxnet Traffic and Behaviour". Ot-Base by Langner. Archived from the original on 25 June 2016. Retrieved 4 March 2011.
  74. ^ Falliere, Nicolas (26 September 2010). "Stuxnet Infection of Step 7 Projects". Symantec. Archived from the original on 3 January 2015. Retrieved 9 February 2011.
  75. ^ "Vulnerability Summary for CVE-2010-2772". National Vulnerability Database. 22 July 2010. Archived from the original on 11 August 2010. Retrieved 7 December 2010.
  76. ^ a b c Chien, Eric (12 November 2010). "Stuxnet: A Breakthrough". Symantec. Archived from the original on 18 January 2018. Retrieved 14 November 2010.
  77. ^ a b "SIMATIC WinCC / SIMATIC PCS 7: Information concerning Malware / Virus / Trojan". Siemens. Archived from the original on 23 September 2019. Retrieved 24 September 2010.
  78. ^ Espiner, Tom (20 July 2010). "Siemens warns Stuxnet targets of password risk". CNET. Archived from the original on 9 January 2011. Retrieved 23 March 2023.
  79. The H. Archived
    from the original on 21 September 2010. Retrieved 18 September 2010.
  80. ^ "Repository of Industrial Security Incidents". Security Incidents Organization. Archived from the original on 26 April 2011. Retrieved 14 October 2010.
  81. ^ "DHS National Cyber Security Division's CSSP". DHS. Archived from the original on 8 October 2010. Retrieved 14 October 2010.
  82. ^ "ISA99, Industrial Automation and Control System Security". International Society of Automation. Archived from the original on 10 January 2011. Retrieved 14 October 2010.
  83. ^ "Industrial communication networks – Network and system security – Part 2-1: Establishing an industrial automation and control system security program". International Electrotechnical Commission. Retrieved 14 October 2010.
  84. ^ "Chemical Sector Cyber Security Program". ACC ChemITC. Archived from the original on 19 October 2010. Retrieved 14 October 2010.
  85. ^ "Pipeline SCADA Security Standard" (PDF). API. Archived (PDF) from the original on 19 November 2010. Retrieved 19 November 2010.
  86. ^ Marty Edwards (Idaho National Laboratory) & Todd Stauffer (Siemens). 2008 Automation Summit: A User's Conference (PDF). United States Department of Homeland Security. p. 35. Archived (PDF) from the original on 20 January 2011. Retrieved 18 January 2011.
  87. ^ "The Can of Worms Is Open-Now What?". controlglobal.com. Archived from the original on 1 October 2010. Retrieved 14 October 2010.
  88. ^ Byres, Eric; Cusimano, John (16 February 2012). "The 7 Steps to ICS Security". Tofino Security and exida Consulting LLC. Archived from the original on 23 January 2013. Retrieved 3 March 2011.
  89. ^ a b c Halliday, Josh (24 September 2010). "Stuxnet worm is the 'work of a national government agency'". The Guardian. London. Archived from the original on 22 August 2022. Retrieved 27 September 2010.
  90. ^ a b c Markoff, John (26 September 2010). "A Silent Attack, but Not a Subtle One". The New York Times. Archived from the original on 6 February 2021. Retrieved 27 September 2010.
  91. ^ Schneier, Bruce (6 October 2010). "The Story Behind The Stuxnet Virus". Forbes. Archived from the original on 30 August 2017. Retrieved 22 August 2017.
  92. ^ Schneier, Bruce (23 February 2012). "Another Piece of the Stuxnet Puzzle". Schneier on Security. Archived from the original on 26 February 2012. Retrieved 4 March 2012.
  93. ^ Modderkolk, Huib (8 January 2024). "Sabotage in Iran: A Mission in Darkness". De Volksrant.
  94. Christian Science Monitor. Archived
    from the original on 6 March 2011. Retrieved 4 March 2011.
  95. ^ Langner, Ralph (February 2011). Ralph Langner: Cracking Stuxnet, a 21st-century cyber weapon (video). TED. Archived from the original on 1 February 2014. Retrieved 4 January 2023.
  96. ^ McMillan, Robert (23 July 2010). "Iran was prime target of SCADA worm". Computerworld. Archived from the original on 5 September 2014. Retrieved 17 September 2010.
  97. ^ Woodward, Paul (22 September 2010). "Iran confirms Stuxnet found at Bushehr nuclear power plant". Warincontext.org. Archived from the original on 20 March 2019. Retrieved 28 September 2010.
  98. ^ "6 mysteries about Stuxnet". Blog.foreignpolicy.com. Archived from the original on 9 February 2014. Retrieved 28 September 2010.
  99. Christian Science Monitor. Archived
    from the original on 24 September 2010. Retrieved 23 September 2010.
  100. ^ Melman, Yossi (28 September 2010). "Computer virus in Iran actually targeted larger nuclear facility". Haaretz. Archived from the original on 22 January 2011. Retrieved 1 January 2011.
  101. ^ Melman, Yossi (24 November 2010). "Iran pauses uranium enrichment at Natanz nuclear plant". Haaretz. Archived from the original on 24 November 2010. Retrieved 24 November 2010.
  102. ^ a b "The Stuxnet worm: A cyber-missile aimed at Iran?". The Economist. 24 September 2010. Archived from the original on 27 September 2010. Retrieved 28 September 2010.
  103. ^ "Serious nuclear accident may lay behind Iranian nuke chief%27s mystery resignation". WikiLeaks. 16 July 2009. Archived from the original on 30 December 2010. Retrieved 1 January 2011.
  104. ^ IAEA Report on Iran (PDF) (Report). Institute for Science and International Security. 16 November 2010. Archived (PDF) from the original on 11 March 2011. Retrieved 1 January 2011.
  105. ^ a b c "Did Stuxnet Take Out 1,000 Centrifuges at the Natanz Enrichment Plant?" (PDF). Institute for Science and International Security. 22 December 2010. Archived (PDF) from the original on 10 September 2012. Retrieved 27 December 2010.
  106. ^ Stöcker, Christian (26 December 2010). "Stuxnet-Virus könnte tausend Uran-Zentrifugen zerstört haben". Der Spiegel (in German). Archived from the original on 27 December 2010. Retrieved 27 December 2010.
  107. ^ Stark, Holger (8 August 2011). "Mossad's Miracle Weapon: Stuxnet Virus Opens New Era of Cyber War". Der Spiegel. Archived from the original on 15 August 2011. Retrieved 15 August 2011.
  108. ^ Warrick, Joby (15 February 2011). "Iran's Natanz nuclear facility recovered quickly from Stuxnet cyberattack". The Washington Post. Archived from the original on 24 January 2022. Retrieved 23 March 2023.
  109. ^ "Stuxnet Malware and Natanz: Update of ISIS December 22, 2010 Report". Institute for Science and International Security. 15 February 2011. Archived from the original on 7 August 2011. Retrieved 10 July 2011.
  110. ^ "Signs of sabotage in Tehran's nuclear programme". Gulf News. 14 July 2010. Archived from the original on 20 November 2010.
  111. ^ a b Williams, Dan (7 July 2009). "Wary of naked force, Israel eyes cyberwar on Iran". Reuters. Archived from the original on 19 May 2018. Retrieved 2 July 2017.
  112. ^ Aneja, Atul (26 September 2010). "Under cyber-attack, says Iran". The Hindu. Chennai, India. Archived from the original on 29 September 2010. Retrieved 27 September 2010.
  113. ^ شبکه خبر :: راه های مقابله با ویروس"استاکس نت" (in Persian). Irinn.ir. Archived from the original on 21 June 2013. Retrieved 28 September 2010.
  114. ^ a b "Stuxnet worm rampaging through Iran: IT official". AFP. Archived from the original on 30 September 2010.
  115. ^ "IRAN: Speculation on Israeli involvement in malware computer attack". Los Angeles Times. 27 September 2010. Archived from the original on 28 September 2010. Retrieved 28 September 2010.
  116. ^ a b Erdbrink, Thomas; Nakashima, Ellen (27 September 2010). "Iran struggling to contain 'foreign-made' 'Stuxnet' computer virus". The Washington Post. Archived from the original on 2 October 2010. Retrieved 28 September 2010.
  117. ^ "Ahmadinedschad räumt Virus-Attack ein". Der Spiegel. 29 November 2010. Archived from the original on 20 December 2010. Retrieved 29 December 2010.
  118. ^ "Stuxnet: Ahmadinejad admits cyberweapon hit Iran nuclear program". The Christian Science Monitor. 30 November 2010. Archived from the original on 5 December 2010. Retrieved 29 December 2010.
  119. ^ a b c Zetter, Kim (29 November 2010). "Iran: Computer Malware Sabotaged Uranium Centrifuges | Threat Level". Wired.com. Archived from the original on 11 March 2012. Retrieved 14 February 2012.
  120. ^ "US Denies Role in Iranian Scientist's Death". Fox News. 7 April 2010. Archived from the original on 13 February 2012. Retrieved 14 February 2012.
  121. ^ Monica Amarelo (21 January 2011). "New FAS Report Demonstrates Iran Improved Enrichment in 2010". Federation of American Scientists. Archived from the original on 15 December 2013. Retrieved 1 January 2016.
  122. ^ "Report: Iran's nuclear capacity unharmed, contrary to U.S. assessment". Haaretz. 22 January 2011. Archived from the original on 25 January 2011. Retrieved 27 January 2011.
  123. ^ Jeffrey Goldberg (22 January 2011). "Report: Report: Iran's Nuclear Program Going Full Speed Ahead". The Atlantic. Archived from the original on 12 November 2016. Retrieved 11 March 2017.
  124. ^ "Experts say Iran has "neutralized" Stuxnet virus". Reuters. 14 February 2012. Archived from the original on 17 August 2021. Retrieved 6 July 2021.
  125. ^ Beaumont, Peter (30 September 2010). "Stuxnet worm heralds new era of global cyberwar". Guardian.co.uk. London. Archived from the original on 30 December 2016. Retrieved 17 December 2016.
  126. ^ Sanger, David E. (1 June 2012). "Obama Order Sped Up Wave of Cyberattacks Against Iran". The New York Times. Archived from the original on 17 September 2022. Retrieved 1 June 2012.
  127. ^ Hounshell, Blake (27 September 2010). "6 mysteries about Stuxnet". Foreign Policy. Archived from the original on 9 February 2014. Retrieved 28 September 2010.
  128. ^ "Falkenrath Says Stuxnet Virus May Have Origin in Israel: Video. Bloomberg Television". 24 September 2010. Archived from the original on 4 December 2012.
  129. ^ Williams, Dan (15 December 2009). "Spymaster sees Israel as world cyberwar leader". Reuters. Archived from the original on 28 December 2010. Retrieved 29 May 2012.
  130. ^ Dan Williams. "Cyber takes centre stage in Israel's war strategy". Reuters, 28 September 2010. Archived from the original on 1 October 2010. Retrieved 17 October 2010.
  131. ^ Antonin Gregoire. "Stuxnet, the real face of cyber warfare". Iloubnan.info, 25 November 2010. Archived from the original on 26 November 2010. Retrieved 25 November 2010.
  132. ^ a b Broad, William J.; Sanger, David E. (18 November 2010). "Worm in Iran Can Wreck Nuclear Centrifuges". The New York Times. Archived from the original on 19 February 2017. Retrieved 25 February 2017.
  133. ^ Williams, Christoper (16 February 2011). "Israeli security chief celebrates Stuxnet cyber attack". The Telegraph. London. Archived from the original on 19 February 2011. Retrieved 23 February 2011.
  134. ^ "The U.S. Cyber Consequences Unit". The U.S. Cyber Consequences Unit. Archived from the original on 23 March 2023. Retrieved 1 December 2010.
  135. ^ "A worm in the centrifuge: An unusually sophisticated cyber-weapon is mysterious but important". The Economist. 30 September 2010. Archived from the original on 10 October 2010. Retrieved 12 October 2010.
  136. ^ Sanger, David E. (25 September 2010). "Iran Fights Malware Attacking Computers". The New York Times. Archived from the original on 26 May 2011. Retrieved 28 September 2010.
  137. ^ "Iran/Critical National Infrastructure: Cyber Security Experts See The Hand of Israel's Signals Intelligence Service in The "Stuxnet" Virus Which Has Infected Iranian Nuclear Facilities". Mideastsecurity.co.uk. 1 September 2010. Archived from the original on 8 December 2010. Retrieved 6 October 2010.
  138. ^ Riddle, Warren (1 October 2010). "Mysterious 'Myrtus' Biblical Reference Spotted in Stuxnet Code". SWITCHED. Archived from the original on 1 October 2011. Retrieved 6 October 2010.
  139. ^ "SCADA Systems Whitepaper" (PDF). Motorola. Archived (PDF) from the original on 1 October 2012. Retrieved 1 January 2016.
  140. ^ "Symantec Puts 'Stuxnet' Malware Under the Knife". PC Magazine. Archived from the original on 14 August 2017. Retrieved 15 September 2017.
  141. ^ Zetter, Kim (1 October 2010). "New Clues Point to Israel as Author of Blockbuster Worm, Or Not". Wired. Archived from the original on 15 December 2013. Retrieved 11 March 2017.
  142. ^ a b Reals, Tucker (24 September 2010). "Stuxnet Worm a U.S. Cyber-Attack on Iran Nukes?". CBS News. Archived from the original on 16 October 2013. Retrieved 27 September 2010.
  143. ^ "Snowden Der Spiegel Interview". Der Spiegel (in English and German). Archived from the original on 6 July 2014. Retrieved 3 October 2015.
  144. ^ Kelley, Michael B. (1 June 2012). "Obama Administration Admits Cyberattacks Against Iran Are Part of Joint US-Israeli Offensive". Business Insider. Archived from the original on 3 December 2017. Retrieved 23 January 2018.
  145. ^ Halliday, Josh (18 January 2011). "WikiLeaks: the US advised to sabotage Iran nuclear sites by German thinktank". The Guardian. London. Archived from the original on 8 September 2013. Retrieved 19 January 2011.
  146. ^ Sanger, David E. (10 January 2009). "U.S. Rejected Aid for Israeli Raid on Iranian Nuclear Site". The New York Times. Archived from the original on 16 October 2013. Retrieved 12 October 2013.
  147. ^ Kim Zetter (17 February 2011). "Cyberwar Issues Likely to Be Addressed Only After a Catastrophe". Wired. Archived from the original on 18 February 2011. Retrieved 18 February 2011.
  148. ^ Koop, Peter (12 December 2013). "Hoe onderschept de NSA ons dataverkeer?". De Correspondent (in Dutch). Archived from the original on 22 February 2022. Retrieved 22 February 2022.
  149. ^ Chris Carroll (18 October 2011). "Cone of silence surrounds U.S. cyberwarfare". Stars and Stripes. Archived from the original on 7 March 2012. Retrieved 30 October 2011.
  150. ^ John Bumgarner (27 April 2010). "Computers as Weapons of War" (PDF). IO Journal. Archived from the original (PDF) on 19 December 2011. Retrieved 30 October 2011.
  151. ^ Kroft, Steve (4 March 2012). "Stuxnet: Computer worm opens new era of warfare". 60 Minutes (CBS News). Archived from the original on 15 October 2013. Retrieved 9 March 2012.
  152. ^ CBS News staff (16 April 2011). "Iran blames U.S., Israel for Stuxnet malware" (SHTML). CBS News. Archived from the original on 24 April 2012. Retrieved 15 January 2012.
  153. ^ James Balford (12 June 2013). "The secret war". Wired. Archived from the original on 24 June 2018. Retrieved 2 June 2014.
  154. ^ Carr, Jeffrey (14 December 2010). "Stuxnet's Finnish-Chinese Connection". Forbes. Archived from the original on 18 April 2011. Retrieved 19 April 2011.
  155. Christian Science Monitor. Archived
    from the original on 27 September 2010. Retrieved 21 January 2011.
  156. ^ "Revealed: How a secret Dutch mole aided the U.S.-Israeli Stuxnet cyberattack on Iran". news.yahoo.com. 2 September 2019. Archived from the original on 3 September 2019. Retrieved 3 September 2019.
  157. Jerusalem Post. Archived
    from the original on 5 September 2019. Retrieved 4 September 2019.
  158. from the original on 20 April 2011. Retrieved 19 April 2011.
  159. ^ Hopkins, Nick (31 May 2011). "UK developing cyber-weapons programme to counter cyber war threat". The Guardian. United Kingdom. Archived from the original on 10 September 2013. Retrieved 31 May 2011.
  160. ^ Iain Thomson (8 July 2013). "Snowden: US and Israel Did Create Stuxnet Attack Code". The Register. Archived from the original on 10 July 2013. Retrieved 8 July 2013.
  161. ^ Menn, Joseph (29 May 2015). "Exclusive: U.S. tried Stuxnet-style campaign against North Korea but failed – sources". Reuters. Archived from the original on 13 December 2015. Retrieved 31 May 2015.
  162. ^ Goud, Naveen (6 November 2018). "Iran says Israel launched Stuxnet 2.0 Cyber Attack". Archived from the original on 7 February 2019. Retrieved 6 February 2019.
  163. ^ "Stuxnet's Secret Twin". Foreign Policy. 19 November 2013. Archived from the original on 4 December 2014. Retrieved 11 March 2017.
  164. ^ "Duqu: A Stuxnet-like malware found in the wild, technical report" (PDF). Laboratory of Cryptography of Systems Security (CrySyS). 14 October 2011. Archived (PDF) from the original on 21 April 2019. Retrieved 13 November 2011.
  165. ^ "Statement on Duqu's initial analysis". Laboratory of Cryptography of Systems Security (CrySyS). 21 October 2011. Archived from the original on 4 October 2012. Retrieved 25 October 2011.
  166. Symantec. 20 October 2011. Archived from the original
    (PDF) on 25 October 2019. Retrieved 25 October 2011.
  167. ^ Finkle, Jim (28 December 2011). "Stuxnet weapon has at least 4 cousins: researchers". Reuters. Archived from the original on 24 September 2015. Retrieved 6 July 2021.
  168. ^ a b Zetter, Kim (28 May 2012). "Meet 'Flame,' The Massive Spy Malware Infiltrating Iranian Computers". Wired. Archived from the original on 30 May 2012. Retrieved 29 May 2012.
  169. ^ "Resource 207: Kaspersky Lab Research Proves that Stuxnet and Flame Developers are Connected". Kaspersky Lab. 11 June 2012. Archived from the original on 16 November 2021. Retrieved 13 June 2012.
  170. Wikidata Q102046116
    .
  171. ..
  172. .
  173. .
  174. ^ "The Meaning of Stuxnet". The Economist. 30 September 2010. Archived from the original on 30 March 2015. Retrieved 18 April 2015.
  175. ^ Kim Zetter (8 July 2011). "How Digital Detectives Deciphered Stuxnet, the Most Menacing Malware in History". Wired. Archived from the original on 9 March 2017. Retrieved 11 March 2017.
  176. ^ Holger Stark (8 August 2011). "Mossad's Miracle Weapon: Stuxnet Virus Opens New Era of Cyber War". Der Spiegel. Archived from the original on 12 April 2015. Retrieved 18 April 2015.
  177. ^ Eddie Walsh (1 January 2012). "2011: The year of domestic cyber threat". Al Jazeera English. Archived from the original on 18 April 2015. Retrieved 18 April 2015.
  178. ^ Vyacheslav Zakorzhevsky (5 October 2010). "Sality & Stuxnet – Not Such a Strange Coincidence". Kaspersky Lab. Archived from the original on 18 April 2015. Retrieved 18 April 2015.
  179. ^ Ball, James (16 February 2016). "U.S. Hacked into Iran's Critical Civilian Infrastructure For Massive Cyberattack, New Film Claims". BuzzFeed. Archived from the original on 19 July 2017. Retrieved 17 May 2017.
  180. from the original on 12 January 2017. Retrieved 27 December 2016.
  181. ^ "World War Three, by Mistake". The New Yorker. 23 December 2016. Archived from the original on 27 December 2016. Retrieved 27 December 2016.
  182. ^ "Splinter Cell Blacklist – Mission 10 "American Fuel"". Archived from the original on 21 December 2021 – via www.youtube.com.
  183. ^ "According to Star Trek: Discovery, Starfleet still runs Microsoft Windows". The Verge. 3 October 2017. Archived from the original on 11 January 2019. Retrieved 11 January 2019.

Further reading

External links