Sophos

Troj/GrayBird-O

Aliases
  • BackDoor-ARR.svr
Category
Type
What to do
Prevalence low high

Summary

 
Affected operating systems Windows
Characteristics
  • Installs itself in the registry
Protection available since 23 August 2005 21:51:25 (GMT)
Detected by All Sophos products
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Action

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\

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