Threat description


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


This is not very well written, but easy to study because a commented disassembly was included in the sample that arrived from Poland. When an infected program is run, it will infect one .EXE file in the current directory. Infected programs are first padded so their length becomes a multiple of 512 bytes. Then the virus adds 637 bytes to the end of the file. It will also install a resident part that will intercept any disk write and change it into a disk read.


Automatic action

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


More information on scanning and removal options available in your F-Secure product can be found in the Help Center.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

Description Created: 2007-01-01 12:16:44.0

Description Last Modified: 2006-01-01 00:00:00.0


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