Threat Description

Zusha

Details

Aliases:Worm.Win32.Zusha.b, TrojanDownloader.Win32.Agent.co, Trojan.Win32.Small.aq, Worm.Win32.Zusha.a
Category:Malware
Type:Virus
Platform:W32

Summary



Zusha worm (both A and B variants) were found on September 8th, 2004. Zusha is a network worm that spreads using LSASS (MS04-011) exploit. It also downloads and runs additional files from the Internet. These files are downloaders, they can also kill firewall application processes in memory and modify Windows firewall configuration to bypass the built-in firewall. In addition, a backdoor component is dropped and activated on the infected systems.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



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