Sophos

W32/Korgo-L

Category
Type
What to do
Prevalence low high

Summary

 
Included in our products from August 2004 (3.84)
Protection available since 21 June 2004 14:48:51 (GMT)
Detected by All Sophos products

Action

More Information

W32/Korgo-L is a network worm using the LSASS exploit to propagate (for more information please see Microsoft Security Bulletin MS04-011). When
executed the worm copies itself to the Windows system folder using a
randomly generated name and creates the following registry entry so that the
worm starts when a user logs on:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
Windows Update = <Windows system folder>\<random name>.exe

During infection the worm will also use the temporary registry value

HKLM\Software\Microsoft\Wireless\
Client = 1

W32/Korgo-L scans random IP addresses attempting to exploit them, the
results of the scans being transmitted to one of several IRC servers and channels.

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