Virus Database


Bony.1373

Description Bony.1373

It is a dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. The virus does not infect program with symbols in file name:
VIR, AVX, WIN, DN.PRG, CAPCANA, RAV, PROT, TB, DRWEB, CLEAN,
GUARD, ANTI, MSAV, FIND, HIEW, HOST, KILL, SAFE, SCAN, STOP,
TRAP, ANL, NOD, AIDS, ASP, VDS, HUNTER, SDRES

Depending on the current date the virus hooks INT 8 (timer), and in several minutes halts the computer.
The virus contains the text string:
[Bny]

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NightFreddy.938

Description NightFreddy.938

This is a very dangerous memory resident parasitic virus. It hooks INT 21h, and writes itself to the end of .COM files that are executed or opened. In August, it erases the MBR of the hard drive and corrupts the CMOS. The virus code contains a branch that is never summoned, and this code decrypts and displays the following message:
I'm Freddy, your nightmare

NightKing.1568

Description NightKing.1568

It is a very dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files (except AVG.EXE) that are executed or opened. While infecting a computer the virus stores the current time in the MBR of the hard drive, and one month after infecting the virus reads to the memory the FAT of the C: drive, then corrupts the FAT, displays the message:
+-----------------------------------------------+
¦ Hello dear friend, your computer is attacking ¦
¦ by NIGHT KING I. virus. If do you like your ¦
¦ data very much, don't reset your computer ¦
¦ before midnight ! ¦
+-----------------------------------------------+

then the virus waits till midnight and restores the corrupted data. If the computer is rebooted before midnight the FAT is lost.

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