Virus Database


PC_Ogre.386

Description PC_Ogre.386

It is a very dangerous nonmemory resident parasitic virus. It searches for .COM files, then writes itself to the beginning of the file. The 5th generation of the virus erases the disk sectors and displays:
PC-Ogre V1.00

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Breakdown.997

Description Breakdown.997

This is a harmless, non-memory resident encrypted parasitic virus. It searches for COM files in the current directory, then writes itself to the end of the file. The virus contains the text string:
breakdown [alpha]

Breath.3457

Description Breath.3457

It is a very dangerous memory resident parasitic polymorphic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed or opened. On any program termination the virus searches for files and infects them. The virus does not infect several anti-viruses (see the list below). It also patches code of memory-resident TBAV anti-virus and deletes the anti-virus databases ANTI-VIR.DAT and CHKLIST.MS, if they exist.
On August 7th the virus displays the message:
Now is time to Breath.2 ! (DCB-1997-Romania,NOT Bulgaria ! <read carefuly>)
Stay cool,nothing goona happen,just breath !

The virus then overwrites the MBR of the hard drive with a program that displays on system booting:
Starting MS-DOSall
Ce e aia , MS - DOS ?
Apasati tasta ANY.

The virus also contains the text strings, the second one contains parts of anti-virus filenames:
TBMEMXXXTBCHKXXXTBDSKXXXTBFILXXX
VDS TB RAV SCAN F- FP CLEAN MSAV NOD VS GUARD AVIX
*.COM *.EXE
COMMAND
Breath.2!

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