Summary

Summary
Action
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| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Included in our products from | February 2008 (4.26) |
| Protection available since | 6 December 2007 18:51:00 (GMT) |
| Detected by | All Sophos products |
Action

Summary
Action
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Please follow the instructions for removing worms.
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W32/Rbot-GVM is a worm for the Windows platform.
W32/Rbot-GVM includes functionality to access the internet and communicate with a remote server via HTTP.
When first run W32/Rbot-GVM copies itself to <System>\svehost.exe and creates the following files:
<System>\drivers\npf.sys
<System>\packet.dll
<System>\wpcap.dll
The following registry entries are created to run svehost.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft Updates
svehost.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Updates
svehost.exe
The file npf.sys is registered as a new system driver service named "NPF", with a display name of "Netgroup Packet Filter". Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\NPF
Registry entries are set as follows:
HKCU\Software\Microsoft\OLE
Microsoft Updates
svehost.exe
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
