Virus Database


Ahav Family

Description Ahav Family

These are harmless nonmemory resident parasitic viruses, "Ahav.377,383" are encrypted. They search for COM files and write themselves to the end of the file. They contain the text string:
"Ahav.336,337": [AHaV] DHA 9/2/95 77
"Ahav.377,379,383,385": [AHaV] Gothmog/DHA *.COM

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Bobas.754

Description Bobas.754

These are dangerous memory resident parasitic viruses. They hook INT 9, 21h and write themselves to the end of EXE files that are executed or opened. Depending on their internal counters the viruses display the messages and corrupt the CMOS:
"Bobas.754": VIRUS :BOBAS v1.1
"Bobas.814": VIRUS :BOBAS v1.2

Bobby.513

Description Bobby.513

This is a somewhat-dangerous, non-memory resident parasitic virus. It searches for .COM files, then writes itself to the end of the file. Because of a bug, the virus corrupts files with lengths that are divisible by 100h (256). On Fridays, the virus displays a message in Russian. It also contains the text:
Bobby Friday.

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