Storm worm evolution continues

Storm worm evolution continues

Summary: The Storm worm is now more streamline and stable after malware authors ditched some key functions from the malicious code, according to researchers from Symantec.

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The Storm worm is now more streamline and stable after malware authors ditched some key functions from the malicious code, according to researchers from Symantec.

The worm no longer infects other legitimate drivers on the system, instead relying on its own proprietary components to "do its dirty work". It also no longer injects itself into processes such as Explorer.exe, according to a blog post by Symantec security researcher Thomas Parsons.

"The sustained development of the Storm worm (incorporating review cycles) indicates that we will continue to see solid infection rates going forward," wrote Parsons. "So, unlike the natural phenomenon, this storm continues to huff and puff and it doesn't look like it is petering out anytime soon."

The Storm botnet was initially created at the beginning of 2007, when the Storm worm was sent out via spam, hiding in e-mail attachments with a subject line of "230 dead as storm batters Europe".

Topics: Symantec, Malware, Security

Tom Espiner

About Tom Espiner

Tom is a technology reporter for ZDNet.com. He covers the security beat, writing about everything from hacking and cybercrime to threats and mitigation. He also focuses on open source and emerging technologies, all the while trying to cut through greenwash.

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