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Summary
Summary
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| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Protection available since | 18 December 2008 16:30:10 (GMT) |
| Detected by | All Sophos products |
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Action
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More Information
W32/Rbot-GSK is a worm with IRC backdoor functionality for the Windows platform.
W32/Rbot-GSK runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
W32/Rbot-GSK spreads to remote network shares protected by weak passwords and to computers vulnerable to common exploits, including LSASS (MS04-011).
When first run the worm copies itself to <Windows>\security\svchost.exe and creates the file <System>\drivers\sysdrv32.sys. This file is not malicious and can be deleted.
The file <Windows>\security\svchost.exe is registered as a new system driver service named "WinHost32Svr", with a display name of "Windows Host32 Server Service" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\WinHost32Svr
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