Showing posts with label Stuxnet. Show all posts
Showing posts with label Stuxnet. Show all posts

Sunday, September 30, 2012

Virtual 911



From the Whatreallyhappened.com website, written by Mike Rivero: "VIRTUAL 9-11: Will Israel Hack The US Banking System Computers and Falsely Blame It On Iran?" http://whatreallyhappened.com/WRHARTICLES/virtual9-11.php


Friday, June 22, 2012

Iran claims U.S. planned internet attack

Washington Times
Jon Norwood


DALLAS, June 21st, 2012 — Heydar Moslehi, the Iranian Intelligence Minister, claimed on Thursday that a planned cyber-attack against their nuclear facilities was detected.  Moslehi said the United States, Britain, and Israel worked together to plan the attack and were referred to as arch enemies of Iran on their state television. This statement came directly following a failed summit between Iran and other world powers over Iran's controversial nuclear program.

"Based on obtained information, America and the Zionist regime along with the MI6 planned an operation to launch a massive cyber-attack against Iran's facilities following the meeting between Iran and the P5+1 in Moscow," said Moslehi on Iran's press TV. He continues that, "They still seek to carry out the plan, but we have taken necessary measures".

This claim was quickly refuted by the chairman of the House intelligence committee Mike Rogers. At a Bloomberg Government conference in Washington Rogers said, "The United States does not use offensive capabilities. We just don’t do it," in reference to cyber-attacks.

What can be construed as offensive might be in question however. According to The New York Times President Obama ordered attacks on Iran's nuclear enrichment facilities as early as 2008, continuing an earlier program started by President George W. Bush. These attacks were said to have used a worm referred to as Stuxnet by cyber-security experts. The purpose of this malware was to target the centrifuges used to enrich uranium in order to slow down the growth of the Iranian nuclear program. These claims were said to have been made by former government officials that would not allow their names to be used due to the classified nature of the information.

What specific attack the Iranian Intelligence Minister is referring too now is unknown as is the method that was too be used. The United States has not openly admitted to any involvement in this but the defense department has recently been gearing up to use the Internet to fight terrorism.

Tuesday, June 19, 2012

CREW calls on Holder to release secret drone strike memo

RawStory
Eric W. Dolan


Citizens for Responsibility and Ethics in Washington (CREW) and other groups on Monday called on U.S. Attorney General Eric Holder to release a memo that provided legal justification for the killing of American terror suspects overseas.

“By withholding this memo, DOJ seems to be trying to evade the accountability that stems from transparency,” said CREW Executive Director Melanie Sloan. “Insisting that the memo remain secret is all the more surprising given President Obama’s stated commitment to an open government.”

Drones operated by the U.S. reportedly killed al Qaeda operatives Anwar al-Awlaki and Samir Kahn last year in Yemen. Both men were U.S. citizens. Awlaki’s 16-year-old son, who was born in Colorado, was reportedly killed by a drone strike about two weeks later.

Despite an executive order banning assassinations, the Justice Department’s Office of Legal Counsel (OLC) had issued a legal memorandum justifying the targeted killing of al-Awlaki if it was not feasible to capture him. The Justice Department has so far ignored requests by members of Congress and others to publicly disclose the memo.

“Americans shouldn’t be kept in the dark when the U.S. government authorizes the targeted killing of one of its own citizens on foreign soil,” continued Sloan. “Further, the memo’s existence is about as secret as the drone program or Stuxnet. As with the torture memos, insisting on secrecy is ridiculous and counterproductive.”

In March, Holder defended the use of drone strikes against American terror suspects without specifically mentioning Awlaki, giving some clues as to what might be in the legal memo.

“The principle of necessity requires that the target have definite military value,” he explained. “The principle of distinction requires that only lawful targets – such as combatants, civilians directly participating in hostilities, and military objectives – may be targeted intentionally. Under the principle of proportionality, the anticipated collateral damage must not be excessive in relation to the anticipated military advantage. Finally, the principle of humanity requires us to use weapons that will not inflict unnecessary suffering.”

Sunday, June 3, 2012

Barack Obama 'ordered Stuxnet cyber attack on Iran'

The Telegraph
Christopher Williams

The computer virus, aimed at the Natanz uranium enrichment facility, was designed to damage centrifuges by making covert adjustments to the machines controlling them.
It formed part of a "wave" of digital attacks on Iran codenamed "Olympic Games" and was created with the assistance of a secret Israeli intelligence unit, The New York Times said in a report based on a book chronicling secret wars under the Obama administration
The report confirms the suspicions of computer security experts who detected and forensically examined Stuxnet in 2010. They reasoned that the technical expertise and human intelligence sources needed to create and deliver what was described as the "world's first cyberweapon" pointed to a joint operation by American and Israeli agencies.
Such third parties reportedly discovered Stuxnet as the result of a "programming error" that meant it spread beyond the computer network at Natanz. According to the account, President Obama asked his national security advisers whether the attack should be halted at a White House Situation Room meeting convened days after the virus "escaped", but decided to intensify it instead.
It's estimated that Stuxnet crippled around 1,000 of 5,000 Natanz centrifuges by spinning them at damagingly high speeds.

“This is the first attack of a major nature in which a cyberattack was used to effect physical destruction,” said Michael Hayden a former director of the CIA and NSA, who did not reveal his own knowledge of "Olympic Games".

Friday, June 1, 2012

Confirmed: US and Israel created Stuxnet, lost control of it

arstechnica
Nate Anderson


In 2011, the US government rolled out its "International Strategy for Cyberspace," which reminded us that "interconnected networks link nations more closely, so an attack on one nation’s networks may have impact far beyond its borders." An in-depth report today from the New York Times confirms the truth of that statement as it finally lays bare the history and development of the Stuxnet virus—and how it accidentally escaped from the Iranian nuclear facility that was its target.

The article is adapted from journalist David Sanger's forthcoming book, Confront and Conceal: Obama’s Secret Wars and Surprising Use of American Power, and it confirms that both the US and Israeli governments developed and deployed Stuxnet. The goal of the worm was to break Iranian nuclear centrifuge equipment by issuing specific commands to the industrial control hardware responsible for their spin rate. By doing so, both governments hoped to set back the Iranian research program—and the US hoped to keep Israel from launching a pre-emptive military attack.

The code was only supposed to work within Iran's Natanz refining facility, which was air-gapped from outside networks and thus difficult to penetrate. But computers and memory cards could be carried between the public Internet and the private Natanz network, and a preliminary bit of "beacon" code was used to map out all the network connections within the plant and report them back to the NSA.
That program, first authorized by George W. Bush, worked well enough to provide a digital map of Natanz and its industrial control hardware. Soon, US national labs were testing different bits of the plan to sabotage Natanz (apparently without knowing what the work was for) using similar centrifuges that had come from Libya's Qadaffi regime. When the coders found the right sets of commands to literally shake the centrifuges apart, they knew that Stuxnet could work.
When ready, Stuxnet was introduced to Natanz, perhaps by a double agent.
Getting the worm into Natanz, however, was no easy trick. The United States and Israel would have to rely on engineers, maintenance workers and others—both spies and unwitting accomplices—with physical access to the plant. “That was our holy grail,” one of the architects of the plan said. “It turns out there is always an idiot around who doesn’t think much about the thumb drive in their hand.”
In fact, thumb drives turned out to be critical in spreading the first variants of the computer worm; later, more sophisticated methods were developed to deliver the malicious code.

Wednesday, November 16, 2011

CIA operations in Iran underway to take out Tehran bigs in mission to dismantle weapons program

NY Daily News
Helen Kennedy

Explosions and assassinations at Iran nuke base pinned to Israel may have been CIA


In public Sunday, President Obama was at a summit unsuccessfully leaning on Russia and China to back diplomatic efforts to curb Iran’s nuke program.

In private Sunday, there was more evidence of an efficient and brutal covert operation that continues to degrade Iran’s military capabilities.

Iranian officials revealed that one of the 17 men killed in a huge explosion at a munitions depot was a key Revolutionary Guard commander who headed Iran’s missile program. And the IRNA state news agency reported that scientists had discovered a new computer virus in their systems, a more sophisticated version of the Stuxnet worm deployed last year to foul up Iran’s centrifuges.

Iran said the army base explosion was an accident and the new Duqu virus was contained. But Israeli newspapers and some U.S. experts said it appeared to be more from an ongoing secret operation by the CIA and Israel’s Mossad to eliminate Iran’s nuclear threat.

The covert campaign encompasses a series of assassinations of Iranian nuclear scientists since 2007 and a similar explosion at another Iranian missile base two years ago both widely attributed to the Mossad.

“May there be more like it,” was all Israeli Defense Minister Ehud Barak said when Army Radio asked about the new blast.

There was a third mysterious event: The son of a top Iranian hard-liner was found dead — a seeming suicide — in a Dubai hotel on Sunday. His father called it “suspicious” and linked to the base explosion, without elaborating.

Israel was accused of deploying the 11 agents who killed a top Hamas terrorist in a Dubai hotel last year.

Tension has risen in recent weeks between Iran and the United States as a key United Nations report said Iran was close to being able to build a nuclear weapon.

At the Asia-Pacific Economic Cooperation conference in Hawaii, Obama tried to get Russia and China to back a bid to tighten sanctions on Iran, meeting individually with Russian President Dmitry Medvedev and Chinese President Hu Jintao.

Afterward, Hu didn’t even mention Iran, and Medvedev said only that he had spoken with Obama about Iran.

Obama came under withering fire from the GOP presidential candidates at a debate Saturday, when the front-runners agreed he had been too weak on Iran and vowed to go to war to stop Iran’s nuclear ambitions if needed.

Former House Speaker Newt Gingrich (R-Ga.) slammed Obama for not being “smart” on Iran.

Gingrich said he would launch “maximum covert operations” against Iran, “including taking out their scientists. . . . All of it covertly, all of it deniable.”

White House deputy national security adviser Ben Rhodes told reporters that pressure on Iran had put its leadership in disarray, and “the Iranian economy has ground to a halt.”


Tuesday, November 8, 2011

A Precursor to War? As Washington Renews Military Threats Against Iran, Cyber Attacks Escalate

Global Research

Tom Burghardt

As evidence mounts that the U.S. secret state is launching cyber weapons against official enemies, while carrying out wide-ranging spy ops against their "friends," Gen. Keith Alexander, the dual-hatted overlord of the National Security Agency and U.S. Cyber Command, says that the Obama administration is "working on a system" that will "help" ISPs thwart malicious attacks.

Speaking at the Security Innovation Network (SINET) "Showcase 2011" shindig at the National Press Club in Washington, Alexander told security grifters eager to gouge taxpayers for another piece of lucrative "cybersecurity" pie: "What I'm concerned about are the destructive attacks. Those are the things yet to come that cause us a lot of concern."

That's rather rich coming from the head of a secretive Pentagon satrapy suspected of designing and launching the destructive Stuxnet virus which targeted Iran's civilian nuclear program.
According to fresh evidence provided by IT security experts it now appears that the same constellation of shadowy forces which unleashed Stuxnet are at it again with the newly discovered Duqu spy Trojan.

In a follow-up analysis, Kaspersky Lab researcher Alex Gostev wrote that "the highest number of Duqu incidents have been recorded in Iran. This fact brings us back to the Stuxnet story and raises a number of issues."

Not least of which is the continuing demonization of the Islamic Republic by an unholy alliance of U.S. militarists, their Israeli pit bulls and congressional shills hyping the "Iran threat."

War Drums Beating

With the United States and the other capitalist powers incapable of digging the world economy out from under the slow-motion meltdown sparked by 2008's market collapse, and with tens of millions of enraged citizens rejecting austerity measures that will further enrich financial elites at their expense, will the Obama administration "go for broke" and set-off a new conflagration in the Middle East?

Ratcheting up bellicose rhetoric, John Keane, a retired four-star general, former Vice Chief of Staff of the U.S. Army now currently perched on the board of General Dynamics, a major purveyor of cyber attack tools for the government, told the House Homeland Security Committee October 26, "We've got to put our hand around their throat now. Why don't we kill them? We kill other people who are running terrorist operations against the United States."

Saturday, October 8, 2011

Security Expert: U.S. 'Leading Force' Behind Stuxnet

WGBH
Tom Gjelten

One year ago, German cyber security expert Ralph Langner announced he had found a computer worm designed to sabotage a nuclear facility in Iran. The Stuxnet worm is now recognized as a cyber super weapon, and it could end up harming those who created it.

One year ago, German cyber security expert Ralph Langner announced he had found a computer worm designed to sabotage a nuclear facility in Iran. It's called Stuxnet, and it was the most sophisticated worm Langner had ever seen.

In the year since, Stuxnet has been analyzed as a cyber super weapon, one so dangerous it might even harm those who created it.

In the summer of 2010, Langner and his partners went to work analyzing a malicious software program that was turning up in some equipment. Langner Communications is a small firm in Hamburg, Germany, but Langner and the two engineers with whom he works know a lot about industrial control systems. What they found in Stuxnet left them flabbergasted.

"I'm in this business for 20 years, and what we saw in the lab when analyzing Stuxnet was far beyond everything we had ever imagined," Langner says.

It was a worm that could burrow its way into an industrial control system, the kind of system used in power plants, refineries and nuclear stations. Amazingly, it ignored everything it found except the one piece of equipment it was seeking; when the worm reached its target, it would destroy it.

Langner says that the more his team analyzed the Stuxnet worm, the more they knew they were onto something big.

"We were pretty much working around the clock," he says, "because after we had the first impression of the magnitude of this, we were just like on speed or something like that. It was just impossible to go back to sleep."

Langner also realized after analyzing the Stuxnet code that it was designed to disable a particular nuclear facility in Iran. That's serious business, he figured. Some Iranian nuclear scientists, he remembered, had been mysteriously killed. Langner published his findings anyway.

Sunday, September 25, 2011

Ex-officials: Iran nuclear effort hit by sabotage

Arab News
Douglas Birch

Populations are endangered by U.S. and
Israeli acts of sabotage at nuclear facilities
WASHINGTON: Iran’s star-crossed nuclear and energy programs have suffered a rash of setbacks, mishaps and catastrophes in the past two years.

Assassins killed three scientists with links to Iran’s nuclear programs. The Stuxnet computer worm that famously infected computers worldwide zeroed in on a single target in Iran, devices that can make weapons-usable uranium. Dozens of unexplained explosions hit the country’s gas pipelines, and Iran’s first nuclear power plant suffered major equipment failures as technicians struggle to bring it online.
Has Iran just been unlucky? Probably not.

The chief of Iran’s Atomic Energy Organization, Fereidoun Abbasi, heatedly told journalists at a meeting in Vienna last week that the United States was supporting an Israeli assassination campaign against his scientists. His emotional comments came almost a year after motorcyclists attached a bomb to the door of his car in Tehran. He and his wife barely escaped with their lives.

As for the three slayings, Iranian President Ahmadinejad told The Associated Press on Friday that the killers had been caught and confessed to being “trained in the occupied lands by the Zionists.” He accused the International Atomic Energy Agency of being under the control of the US and said the watchdog agency had “illegally and unethically” released the names of Iran’s nuclear researchers, making them targets.

While Israel and Britain won’t discuss Iran’s charges, the US has denied any role in the slayings.
“We condemn any assassination or attack on a person — on an innocent person,” State Department spokeswoman Victoria Nuland said after the latest killing in July. “We were not involved.” Former US officials point out that assassinations are outlawed by the US, which condones drone strikes against terrorists as acts of war against combatants.

Yet there is little doubt that the Obama administration is pursuing a program of high-tech sabotage to disrupt Tehran’s suspected weapons-related nuclear efforts.

“I have no doubt that the US and other countries were behind industrial sabotage aimed at the program of concern,” said Mark Fitzpatrick, a former State Department official, referring to Iran’s nuclear program.

Tehran said it is pursuing nuclear technology for peaceful purposes. International inspectors said Iran has refused to explain suspected weapons work since 2008. Meanwhile, the US and other countries accuse Iran of making all the necessary preparations to build a nuclear arsenal.

Publicly, the Obama administration has pushed for tougher sanctions and further diplomatic isolation to pressure Iran to abandon weapons-related work. At the same time, former officials said, the US and its allies have secretly ramped up covert actions aimed at slowing Iran’s nuclear progress toward a bomb.

“As Iran moves closer to being able to produce a nuclear weapon, concerned countries are increasingly concentrating on ways to prevent it from being able to cross that line,” said Fitzpatrick, now at the International Institute for Strategic Studies in London.

Ex-officials said the US has been careful to target only those facilities suspected of playing a role in weapons work and avoid casualties or other collateral damage.

One former senior intelligence official said that the US considered a scheme to use a burst of electromagnetic energy to knock out power to one suspected Iranian weapons-related site but rejected the plan because of the risk of causing a widespread power outage. The former official would only speak about classified matters on condition of anonymity.

The suspected sabotage campaign is widely seen as an alternative to military confrontation with Iran, which some experts say could have disastrous consequences for the Middle East.

Wednesday, April 27, 2011

West is at Mercy of Stuxnet, German Analyst Hints

by Gil Ronen
Thu Ugly Truth

Nuclear Reactors in the United States
German cyber-security expert Ralph Langner, who helped unravel the Stuxnet virus, told a global audience in March that the worm could be used as a weapon of mass destruction against targets in the West. At the end of his presentation on the subject, Langner arguably seemed to hint at the possibility that Israel is part of the danger, although in correspondence a few months ago he named an unspecific “hacker underground” as the possible threat.

Langner heads an independent German cyber-security firm that bears his name, which specializes in control systems — electronic devices that monitor and regulate other devices. Langner’s website says that his team analyzed Stuxnet as part of “a global effort to decode the mysterious program,” without naming his client.
 
In a March presentation at Ted2011, an elite yet globally public intellectual platform, Langner spoke admiringly of the ingeniousness behind Stuxnet, but also employed an ominous tone, speaking of “the plot behind Stuxnet” and calling its mode of operation “creepy.” 
 
Stuxnet’s programming is “rocket science,” he said, presenting some lines of code from the cyber-virus before his high-tech audience. “It’s way above everything that we have ever seen before.” The people behind it were “very professional, they knew all the bits and bytes,” he explained. “They probably even knew the shoe size of the operator [at the Natanz plant],” he added.
 
The virus was designed to work stealthily, Langner added. The idea was to take over the uranium-enrichment cascades at Iran’s Natanz plant “slowly and creepily” and “to drive maintenance engineers crazy.”
 
“When we started our research on Stuxnet six months ago, it was completely unknown what the purpose of this thing was,” he said. “We started to work on this around the clock because I thought, well, we don’t know what the target is, it could be, let’s say for example, a U.S. power plant or a chemical plant in Germany. So we better find out what the target is soon.”
 
He went on to describe the risk that Stuxnet could be used to blow up power plants:

“The idea here is not only to fool the operators in the control room. It actually is much more dangerous and aggressive. The idea here is to circumvent a digital safety system…. when they are compromised, then real bad things can happen. Your plant can blow up and and neither your operators nor your safety system will notice it. That’s scary. But it gets worse – and this is very important, what I am going to say. Think about this: this attack is generic. It doesn’t have anything to do with specifics with centrifuges, with uranium enrichment. So it would work as well, for example in a power plant or in an automobile factory. It is generic. And as an attacker you don’t have to deliver this payload by a USB stick, as we saw it in the case of Stuxnet. You could also use conventional worm technology for spreading. Just spread it as wide as possible. And if you do that, what you end up with is a cyberweapon of mass destruction.”

“That’s the consequence that we have to face,” he said, deliberately, while showing a map that marked Western countries (Israel not included) in green. “So unfortunately, the biggest number of targets for such attacks are not in the Middle East. They are in the United States, in Europe and in Japan. So all the green areas, these are your target-rich environments. We have to face the consquences and we better start to prepare right now.”



The caption on the slide says “This way, Pandora.”

In what was most likely a “pre-ordered” question from the conference presenter at the end of his lecture, Langner was asked if he thought Israel was behind the attack. His response sounded a dramatic tone:

“My opinion is that the Mossad is involved, but that the leading force is not Israel, so that… the leading force behind that is the cyber superpower. There is only one, and that is the United States. Fortunately… fortunately… Because otherwise, our problems would even be bigger.”

The “even bigger” danger Langner is hinting at was deliberately left vague. Based on the presentation alone, and the concluding sentence, it seems possible that he thinks Israel could use the worm against Western targets. Why the German consultant thinks Israel would want to do this, one can only speculate.

However, in a correspondence with cyber-security firm Symantec some six months ago, Langner named a “hacker underground” as the possible threat:

“You fail to understand that the hacker underground has been studying control systems for years without any success. You fail to understand that this community will eagerly dismantle Stuxnet as a blueprint for how to cyber-attack installations from the cookie plant next door to power plants.”

So – does Langner think the threat is Mossad or the “hacker underground”? Is the “hacker underground” he fears Jewish, Muslim, or other? Is there an anti-Semitic tinge to the description of the virus as “creepy” and to its inception as a “plot”? Why is Israel not included in the green areas that could come under the Stuxnet threat? Was he hinting that if Mossad and not the U.S. were the leading force behind Stuxnet, the West’s problems would be bigger? Is he concerned about a targeted attack or an uncontrolled worldwide attack? These are questions that cannot be answered at this point.

Over the decades since Israel’s acquisition of nuclear technology, there has occasionally been speculation over the Jewish state’s options in case it were faced with a lethal attack. One possible course of action that has been floated is known as the “Samson Option,” in which Israel would take down its (past and present) enemies with it, like the Biblical hero.

The New York Times recently reported that the Stuxnet virus could possibly still be infecting Iranian systems and that it may unleash additional havoc on new targets. Iranian civil defense commander Gholamreza Jalali said Monday the Islamic Republic’s nuclear program has fallen prey to a new computer virus called “Stars.”

Monday, April 18, 2011

Iran: Computer worm could have caused huge damage

SFGate

Iranian Enrichment Plant
A senior Iranian military official involved in investigating a mysterious computer worm targeting Iranian nuclear facilities and other industrial sites said Saturday the malware could have caused large-scale accidents and loss of life.

It first emerged in September that Iran was battling a powerful computer worm known as Stuxnet, which has the ability to send centrifuges — used in nuclear fuel production — spinning out of control. Its appearance and the suspicion that Israel and the U.S. might have been involved raised the prospect of covert attempts to thwart a nuclear program that the West fears is aimed at weapons production.

Iran has acknowledged the code infected laptops belonging to employees at its first nuclear power plant, whose launch has been repeated delayed. It is also believed to have temporarily crippled Iran's uranium enrichment program last year.

On Saturday, Gholam Reza Jalali, head of a military unit in charge of combatting sabotage, said Iranian experts have determined that the United States and Israel were behind Stuxnet, which can take over the control systems of industrial sites like power plants.

Jalali said disastrous accidents and loss of life were averted by Iranian experts fighting the computer code. He gave no specific examples.

In recent months, Iranian state media have reported dozens of explosions at industrial sites, particularly oil and petrochemical facilities, that have killed at least 10 people. But there were no official explanations for the blasts.

"Enemies have attacked industrial infrastructure and undermined industrial production through cyber attacks. This was a hostile action against our country," the official IRNA news agency quoted Jalali as saying. "If it had not been confronted on time, much material damage and human loss could have been inflicted."

Jalali heads a military unit called Passive Defense that primarily deals with countering sabotage. The unit was set up on an order from Iran's Supreme Leader Ayatollah Ali Khamenei.

Jalali said Iranian experts have traced the Stuxnet virus back to the U.S. state of Texas and Israel, IRNA reported. Western experts say only a number of powerful countries could have developed Stuxnet.

Jalali also blamed the German engineering conglomerate Siemens, whose equipment and software is used at the Bushehr nuclear power plant, where technical issues have halted its planned startup.
"Siemens should explain why and how it provided the enemies with the codes of the SCADA software and paved the way for a cyber attack against us," IRNA quoted him as saying.

Iran has acknowledged Stuxnet affected a limited number of centrifuges at its main uranium enrichment facility in Natanz, central Iran, but has said its scientists discovered and neutralized the malware before it could cause serious damage.

The Natanz enrichment plant is of key concern to those nations who fear Iran is intent on weapons production because the technology can produce either fuel for power plants or material for bombs.
Iran insists its nuclear work is entirely peaceful.

Iran has confirmed that Stuxnet was found on several laptops belonging to employees at the Russian-built Bushehr power plant but has said it didn't affect the facility's control systems. Western intelligence reports have suggested that Stuxnet has infected the control systems there.
Bushehr is not a proliferation concern because of international safeguards on its spent fuel. But Iran has celebrated the plant extensively as a major technological achievement and a sign of its determination to master all aspects of nuclear technology.

Sunday, April 17, 2011

Iran: Siemens in collusion with US and Israel on Stuxnet worm

Digital Journal
Iranian authorities, frustrated by the effectiveness of the Stuxnet cyber worm in attacking their nuclear facilities, has accused Siemens, the German engineering conglomerate, of helping the US and Israel in orchestrating the cyber attack.

Iran has accused Siemens, the German-based global infrastructure and engineering conglomerate, of helping Israeli and American programmers execute the disruptive Stuxnet cyber worm on Iranian computer systems and electrical equipment.

According to a report in The Guardian on Sunday, senior Iranian military staff contend that Siemens gave American and Israeli computer virus designers access to specific control system specifications, thereby providing a blueprint from which the cyber worm programmers could operate.

Iranian authorities are discussing plans to sue Siemens over the breach that left many advanced Iranian computer equipment disabled.

"Our executive officials should legally follow up the case of Siemens SCADA software which prepared the ground for the Stuxnet worm," Gholamreza Jalali, Iran's civil defense head told the IRNA state news agency, according to The Guardian. "Siemens should explain why and how it provided the enemies with the information about the codes of the SCADA software and prepared the ground for a cyber attack against us."

Siemens has had strong ties with Iran, but the Jerusalem Post reported in January of 2010 that the company ceased operations with Iranian business and government institutions as Western nations increased the pressure on the Iranian regime to end its nuclear program.

Israel, the US and their allies believe Iran seeks nuclear technology to develop weapons. However, Iran insists its nuclear interests are for peaceful civilian purposes.

The Stuxnet worm was as damaging to Iran as it was embarrassing, and the setback caused by the cyber attack is thought to be quite significant, as Iranian engineers at Iran's controversial nuclear facilities were forced to replace key equipment.

US and Israeli officials have not denied involvement in the Stuxnet release.