Summary

Summary
Action
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| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Included in our products from | July 2007 (4.19) |
| Protection available since | 3 April 2007 10:51:04 (GMT) |
| Last updated | 17 May 2007 14:07:10 (GMT) |
| Detected by | All Sophos products |
Action

Summary
Action
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Please follow the instructions for removing worms.
More Information
W32/Rbot-GKZ is a worm with IRC backdoor functionality for the Windows platform.
W32/Rbot-GKZ 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-GKZ spreads to other network computers by exploiting common buffer overflow vulnerabilities, including: SRVSVC (MS06-040) and Realcast.
When first run W32/Rbot-GKZ copies itself to <System>\GoogleUpdater.exe.
The following registry entries are created to run GoogleUpdater.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Office Monitors
<System>\GoogleUpdater.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Office Monitors
<System>\GoogleUpdater.exe
The following registry entry is set:
HKLM\SOFTWARE\Microsoft\Ole
EnableDCOM
N
