Liam O’Murchu of Symantec, speaking at the Virus Bulletin Conference here, provided the first detailed public analysis of the worm’s inner workings to an audience of some of the world’s top computer virus experts. O’Murchu described a sophisticated and highly targeted virus and demonstrated a proof of concept exploit that showed how the virus could cause machines using infected PLCs to run out of control….

As for suggestions that Israeli intelligence may have authored the virus, O’Murchu noted that researchers had uncovered the reference to an obscure date in the worm’s code, May 9, 1979, which, he noted, was the date on which a prominent Iranian Jew, Habib Elghanian, who was executed by the new Islamic government shortly after the revolution.