Summary

Summary
Action
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| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Protection available since | 4 May 2006 02:36:59 (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
More Information
Please follow the instructions for removing worms.
More Information
W32/Bagle-IV is a mass-mailing worm and backdoor Trojan for the Windows platform.
W32/Bagle-IV includes functionality to access the internet and communicate with a remote server via HTTP. W32/Bagle-IV is a mass-mailing worm and backdoor Trojan for the Windows platform.
W32/Bagle-IV includes functionality to access the internet and communicate with a remote server via HTTP.
When first run W32/Bagle-IV copies itself to <Windows>\csrss.exe and creates the file <Temp>\Message.zip.
The file Message.zp is detected as W32/Bagle-Zip.
The following registry entry is changed to run W32/Bagle-IV on startup:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe
Debugger
<Windows>\csrss.exe
W32/Bagle-IV will attempt to email itself to addresses harvested from the infected computer as an attachment.

