Threat Description

Zipper

Details

Aliases:Zipper
Category:Malware
Type:Virus
Platform:DOS

Summary



Zipper contains several bugs which might corrupt the infected files.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You also may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details



This is a simple virus which stays resident in memory and infects COM and EXE files when they are accessed. \COMMAND.COM and \DOS\FORMAT.COM are infected on the first execution.

If you run PKZIPFIX against an infected COM or EXE file, it will create a PKFIXED.ZIP, which contains an assembly source file called ZIPPER.ASM.

The virus contains this text, which is never displayed:

>>*>> Use PKUNZIP *.EXE immediately! <<*<<




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