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Fizzer worm more of a threat than previously thought

The Fizzer mass-mailing worm is spreading faster than originally thought, says Symantec, which has upgraded it to a level 3 threat

Symantec is reporting a new virus in the wild. The W32.HLLW.Fizzer@mm mass mailing worm was detected earlier this week, but Symantec is now warning that it is spreading faster than expected, and has upgraded the threat level to level 3 (out of five).

The fizzer worm replicates itself and sends itself to all addresses in an infected users mail system, but it also carries both a keystroke logger and an mIRC application that allows a hacker to open a backdoor to the infected PC. It also attempts to disable any anti-virus software running on the target PC.

For more information see Symantec’s Security Response briefing at http://securityresponse.symantec.com/avcenter/venc/data/w32.hllw.fizzer@mm.html

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