Updates to this story
Iran has an interesting way of dealing with cyber attacks. According to the state-run Mehr news agency, it rounds up people who distributed it, treats them like spies for foreign powers and locks them up.
Lately Iran's industry has been walloped by the Stuxnet trojan which security experts thinks is so sophisticated it must have been designed by a foreign power to bring down the Bushehr nuclear-power station.
Intelligence Minister Heidar Moslehi is convinced that the virus distribution was deliberate and an inside job.
He issued a statement today saying his glorious revolutionary forces had total control of the country's computer networks and the ability to foil cyberattacks by the nation's enemies.
The glorious Islamic revolutionaries have arrested a number of "nuclear spies," Moslehi said. It is not clear who he could have arrested. If the worm was made in the US or Israel, as is suspected, he could not have arrested the viruses writers. This could only mean that they have arrested the poor sods who accidentally distributed it and banged them up.
Industrial computers that were affected by the worm have been cleaned and returned to their units, Deputy Industry Minister Mohsen Hatam said.
The IP addresses of 30,000 computer systems had been infected. More than 60 percent of Stuxnet victims were in Iran.
Moslehi said that all of the destructive activities perpetrated by "the oppressors in cyberspace will fast be discovered, and ways to counter them will be implemented."
He confirmed that the Intelligence Ministry is aware of a series of activities carried out against the Islamic Republic by enemy spy services.
The United Nations has imposed sanctions on Iran because of its nuclear program, which the U.S., Israel and their allies suspect is cover for the development of atomic weapons. Iran says it needs the technology to generate electricity and carry out medical research.
However, it also said that the Stuxnet worm had not harmed the country at all and the Bushehr plant had gone online on time. Even when it didn't.