Summary

Summary
Action
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| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Included in our products from | February 2006 (4.02) |
| Protection available since | 4 December 2005 23:08:44 (GMT) |
| Detected by | All Sophos products |
Action

Summary
Action
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Please follow the instructions for removing worms.
More Information
W32/Rbot-AZZ is a worm and IRC backdoor Trojan for the Windows platform.
W32/Rbot-AZZ spreads:
- to other network computers infected with: Troj/Kuang, Troj/Sub7, Troj/NetDevil, W32/MyDoom, W32/Bagle and Troj/Optix
- to other network computers by exploiting common buffer overflow vulnerabilities, including: LSASS (MS04-011), RPC-DCOM (MS04-012), WebDav (MS03-007), IIS5SSL (MS04-011) (CAN-2003-0719), UPNP (MS01-059) and Dameware (CAN-2003-1030)
- by copying itself to network shares protected by weak passwords
W32/Rbot-AZZ 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.
When first run W32/Rbot-AZZ copies itself to <System>\updat.exe.
The following registry entries are created to run updat.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
updat
updat.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
updat
updat.exe
The following registry entry is set:
HKCU\Software\Microsoft\OLE
updat
updat.exe
