Threat Description

Onex

Details

Aliases: Onex
Category: Malware
Type: Virus
Platform: W97M

Summary



W97M/Onex is a simple Word macro virus.



Removal



Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



Technical Details




Variant:Onex.A

W97M/Onex.A is a simple Word macro virus, that infects the global template when an infected document is opened. After that all opened documents become infected. Beside replication the virus disables the macro virus protection.


Variant:Onex.E

W97M/Onex.E contains a payload that activates based on a random number. In a chance of 1:150 the virus attempts to delete "c:\winnt\system32\ntoskrnl.exe" when an infected document is opened or a document is opened in an infected system. Otherwise it functions like the original W97M/Onex.A.





Technical Details: Sami Rautiainen, F-Secure; August 2001


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