Threat Description



Category: Malware
Type: Virus
Platform: W32
Aliases: Major, Puppet, BBS-1643, MajorBBS


This virus got widespread in April 1996, because it was available in an infected file called CANCER01.ZIP in ftp site In addition to the infected files inside CANCER01.ZIP, Major virus has been spread in files called TAP.EXE and FLASH.EXE (PKLited dropper).


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.

Technical Details

Major tries to interact with the Major BBS system. Without further information on this BBS system, it is impossible to tell what the virus actually tries to do. In any case it tries to access files

\BBSV6\BBSAUDIT.DAT and \BBSV6\BBSUSR.DAT.  Major contains these encrypted texts:    The Major BBS Virus created by Major tomwn to DOS     Puppet Image Gnat Minion Cindy F'nor 	 	

As many other memory-resident viruses, Major will conflict with some memory managers.

Major virus has been confirmed to be in the wild in several countries.

Description Details: Mikko Hypponen, F-Secure


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