high
Summary
Summary
Action- More Information
| How it spreads |
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|---|---|
| Affected operating systems | Windows |
| Characteristics |
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| Protection available since | 29 November 2004 09:27:03 (GMT) |
| Last updated | 28 February 2005 08:37:38 (GMT) |
| Detected by | All Sophos products |
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Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
Windows NT/2000/XP/2003
In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. Please read the warning about editing the registry.
At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.
Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.
Locate the HKEY_LOCAL_MACHINE entry:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Windows DLL Loader
%SYSTEM%\defragfat32pi.exe
and delete it if it exists.
Close the registry editor.
More Information
W32/Rbot-QQ is a network worm which attempts to spread via network shares. The worm contains backdoor functions that allows unauthorised remote access to the infected computer via IRC channels.
The worm spreads to network shares with weak passwords and by using the LSASS security exploit (MS04-011).
When run W32/Rbot-QQ moves itself to the Windows System folder as a hidden file named defragfat32pi.exe. The worm then creates the following registry entry to run itself on computer logon:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Windows DLL Loader
%SYSTEM%\defragfat32pi.exe
Once installed, W32/Rbot-QQ will attempt to setup a SOCKS server and terminate threads and processes when instructed to do so by a remote attacker.
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