Summary

Summary
Action
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| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Protection available since | 4 October 2004 13:20:39 (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/Loony-O is an IRC backdoor Trojan which allows unauthorised access and control of the computer from a remote network location.
In order to run automatically when Windows starts up the Trojan copies itself to the file winsys32.exe in the Windows system folder and creates the following registry entry:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\winsys32 Driver
Sophos Anti-Virus version 3.85 detects this Trojan as Troj/Loony-Gen without requiring an update.
