Virus Database

TraceBack.2930

Description TraceBack.2930

There are harmless memory resident parasitic viruses. They write themselves to the end of COM and EXE files. Being executed they search for the files and infect them. Then they hook INT 20h, 21h, 1Ch and infect the files that are loaded into the memory. When creating their TSR copy the viruses leave in the memory its TSR code as well as the code of the host file. In some cases these viruses manifest themselves by a video effect, the virus drops the letters on the screen.
The feature of that virus is the fact, that the infected file contains the name of the file that has infected the system memory, i.e. the name of its "father".

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BeastVir.664

Description BeastVir.664

It is not a dangerous nonmemory resident encrypted parasitic virus. It searches for COM files, then writes itself to the end of the file. Starting from 4th generation the virus displays the messages and performs a loop of disk head seeks (not format):
You have BEAST VIRUS now!
Turn OFF computer or begin formatall You have X seconds!
Formatting... May be C: or may be....
Congratulation!

Beavis.655

Description Beavis.655

These are not dangerous memory resident parasitic viruses. They copy themselves into Upper Memory Blocks, hook INT 21h, then they write themselves to the end of EXE files that are executed. Depending on the system timer these viruses display one of the messages:
FIRE FIRE FIRE!
Hey butthead this sucks change the channel!
Shut up butthead or I'll kick your ass!
We're there dude.
The Beavis virus kicks ass!

The viruses also contain the text strings:
"Beavis.655,657": [BEAVIS]
"Beavis.671,673": [BEAVIS] by Crypt Keeper

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