Aliases
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I-Worm.Winevar
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WORM_WINEVAR.A
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W32/Korvar
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Worm/Bride.C
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W32.HLLW.Winevar
Affected Operating Systems
Recovery Instructions:
Please follow the instructions for removing worms.
Please read the instructions for removing worms.
You will also need to edit the following registry entries.
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 entries:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
and delete any reference to any file you deleted.
You will also need to edit the following registry entry for each user who ran the virus. Each has a registry area named HKEY_USERS\[code number indicating user]\. For each user locate the entry:
HKU\[code number]\Software\Microsoft\Windows\
CurrentVersion\Run\
and delete any reference to any file you deleted.
You may also delete the following entry (this is optional):
HKCR\Software\Microsoft\DataFactory
Close the registry editor.
Installing the patch
Microsoft has issued a patch which secures against the incorrect MIME header vulnerability and the IFRAME vulnerability. This can be downloaded from http://www.microsoft.com/technet/security/bulletin/MS01-027.asp.
(This patch fixes a number of vulnerabilities in Microsoft's software, including the ones exploited by this worm.)