high
Summary
Summary
Action- More Information
| Protection available since | 3 June 2004 13:47:48 (GMT) |
|---|---|
| Detected by | All Sophos products |
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Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
Download and install the Microsoft patch mentioned above.
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\System Restore Service
and remove any reference to any file you deleted.
Close the registry editor.
More Information
W32/Korgo-D is a variant of the W32/Korgo-C network worm and backdoor that propagates by using the LSASS exploit.
For details see Microsoft Security Bulletin MS04-011.
When executed W32/Korgo-D copies itself to the Windows system folder with
the random filename and sets the registry entry:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\System Restore Service
with the path to the copy to make sure the worm runs at the restart.
W32/Korgo-D marks the infection by setting the registry entry:
HKLM\SOFTWARE\Microsoft\Wireless\
W32/Korgo-D scans random IP addresses attempting to exploit them, the results of the scans being transmitted to a specific irc servers from the following list:
'K@1irc.kar.net'
'gaspode.zanet.org.za'
'lia.zanet.net'
'irc.tsk.ru'
'london.uk.eu.undernet.org'
'washington.dc.us.undernet.org'
'los-angeles.ca.us.undernet.org'
'brussels.be.eu.undernet.org'
'caen.fr.eu.undernet.org'
'flanders.be.eu.undernet.org'
'graz.at.eu.undernet.org'
'gaz-prom.ru'
'moscow-advokat.ru'
As a part of payload W32/Korgo-D attempts to delete ftpupd.exe file and the registry entries that have the following values
'avserve2.exe'
'avserve.exe'
'WinUpdate'
'SysTray'
'Bot Loader'
'System Service Manager'
'Windows Security Manager
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