high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Protection available since | 7 June 2005 13:08:00 (GMT) |
| Detected by | All Sophos products |
Sophos beta program
- Endpoint Security and Control 9.0
- Small business solutions 4.0
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
IECheck
<System>\mssvp.exe
and delete it if it exists.
Close the registry editor.
More Information
W32/Tirbot-G is a network worm with backdoor functionality for the Windows platform.
W32/Tirbot-G spreads to other network computers targeting weakly protected network shares, or by exploiting the LSASS vulnerability (MS04-011). W32/Tirbot-G is a network worm with backdoor functionality for the Windows platform.
W32/Tirbot-G spreads to other network computers targeting weakly protected network shares, or by exploiting the LSASS vulnerability (MS04-011).
A patch is available from Microsoft for the LSASS vulnerability exploited by W32/Tirbot-G:
W32/Tirbot-G includes functionality to silently download, install and run new software.
When first run W32/Tirbot-G copies itself to <System>\mssvp.exe and creates the file <Windows>\msi486.dll.
The following registry entry is created to run mssvp.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
IECheck
<System>\mssvp.exe
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