Stuxnet can re-infect scrubbed PCs

[Peaches]

Stuxnet can re-infect scrubbed PCs

Computerworld - A security researcher today revealed yet another way that the Stuxnet worm spreads, a tactic that can re-infect machines that have already been scrubbed of the malware.

The new information came on the heels of admissions by Iranian officials that Stuxnet had infected at least 30,000 of the country's Windows PCs, including some of the machines at the Bushehr nuclear reactor in southwestern Iran.

The worm, which has been dubbed the world's most sophisticated malware ever, targets Windows PCs that oversee industrial-control systems, called "SCADA" systems, that in turn manage and monitor machinery in power plants, factories, pipelines and military installations.

Previously, researchers had spotted several propagation methods in Stuxnet that ranged from spreading via infected USB flash drives to migrating between machines using multiple unpatched Windows bugs.

Story - http://www.computerworld.com/s/article/9188238/Stuxnet_worm_can_re_infect_scrubbed_PCs