Virus.DOS.AFFA or AFFA is a virus that runs on MS-DOS.


AFFA is a memory resident parasitic virus.

It hooks INT 21h and writes itself to the end of .COM files (except COMMAND.COM) that are executed or opened. The virus contains the ID-bytes: AFh, FAh.

On February, 2nd, 1997 the virus erases the MBR of the hard drive and halts PC. 


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