Symantec: Storm worm changes tack
Published: 02 Nov 2007 17:53 GMT
The Storm worm has evolved again, researchers from Symantec claim.
To streamline the worm and make it more stable, the malware authors have shed key functionalities in the malicious code, said the researchers.
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 email attachments with a subject line of "230 dead as storm batters Europe".
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