Summary

Summary
Action
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| Affected operating systems | Windows |
|---|---|
| Characteristics |
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| Protection available since | 23 August 2005 21:51:25 (GMT) |
| Detected by | All Sophos products |
- Free virus, spyware, and adware scan
- Test your existing anti-virus protection
- Find threats your anti-virus missed
Action

Summary
Action
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Please follow the instructions for removing Trojans.
More Information
Troj/GrayBird-O is a backdoor Trojan for the Windows platform.
Troj/GrayBird-O will report to a predefined URL and then open a backdoor allowing a remote intruder control over the infected computer.
When first run Troj/GrayBird-O moves itself to <Windows folder>\G_Server2.0.exe.
The file G_Server2.0.exe is registered as a new system driver service named "GrayPigeonServer2.0", with a display name of "Gray_Pigeon_Server2.0" and a startup type of automatic, so that it is started automatically during system startup. Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\GrayPigeonServer2.0\
