Virus Database

DataFire.1080

Description DataFire.1080

It is a dangerous not memory resident parasitic virus. It searches for .COM-files and writes itself to their ends. On Fridays, 13th it erases the disk sectors, displays the message and halts the PC:
DataFire I
The Pyro of The Underground

On December Sundays it leaves the TSR program that hooks INT 1Ch, 21h. By hooking INT 1Ch the virus slows down the computer. The hooking of INT 21h is used for "Are you here?" call before INT 1Ch hooking.

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BadBoy.1000.a

Description BadBoy.1000.a

This is a harmless memory resident parasitic encrypted virus. It hooks INT 21h and writes itself at the beginning of COM files are executed. This virus uses System File Table on infection. It is divided on 9 blocks of code and data (installation block, data block, INT 21h block e.t.c.). When the virus installs itself into the memory, 8 of these 9 blocks can be rearranged in any order depending on the system timer. On infection the virus saves encrypted image of its TSR copy into the file, so orders of code blocks in two infected file can be different.
This virus displays on 10th infection:
The bad boy halt your systemall
And then halts it.
The virus contains the text:
The Bad Boy virus, Copyright (C) 1991.

BadBoy.1000.c

Description BadBoy.1000.c

This is a harmless memory resident parasitic encrypted virus. It hooks INT 21h and writes itself at the beginning of COM files are executed. This virus uses System File Table on infection. It is divided on 9 blocks of code and data (installation block, data block, INT 21h block e.t.c.). When the virus installs itself into the memory, 8 of these 9 blocks can be rearranged in any order depending on the system timer. On infection the virus saves encrypted image of its TSR copy into the file, so orders of code blocks in two infected file can be different.
The virus contains the text:
Pile of shit
The Worthless Piece of shit virus that is a joke.

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