Virus Database

Trojan.BAT.KeyboardDisable.f

Description Trojan.BAT.KeyboardDisable.f
KeyboardDisable.f is a primitive BAT-Trojan written in the DOS command language.
When it is launched it blocks the functioning of the keyboard and mouse.
The program copies itself under the names:
C:/MyDocu`1Autoexec.bat
C:/WindowsStartM`ProgramsStartupAutoexec.bat

It also creates the file HAHA.vbs. This file contains the following text:
msgbox "HAHAHAHA"

The script is repeatedly launched.

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Punisher.1632

Description Punisher.1632

It is a harmless memory resident encrypted parasitic virus. It traces INT 13h, 21h, hooks INT 21h, and then writes itself to the end of COM and EXE files that are accessed. The virus checks the file name, and does not infect the files: A*.*. S*.*, I*.*, C*.*. The virus contains the text string:
The Punisher-I

Puppets.960

Description Puppets.960

This is a relatively harmless memory resident parasitic virus. It hooks INT 9, 10h, and 21h, and writes itself to the end of COM- and EXE-files that are executed or opened.
When Alt-Ctrl-Del is pressed (warm rebooting), the virus tries to stay memory resident. It displays the following:
Phoenix ROM BIOS PLUS Version 5.23 08
Copyrigth (C) 1985-1988 Phoenix Technologies Ltd.
All Rights Reserved

then delays, calls INT 19h (bootstrap loader), gains control by INT 10h, and then hooks INT 9 and 21h.
While rebooting, if the system date is between January and October, the virus also displays the following message:
This virus written 1990. (C) Copyrigth The Master of Puppets
Public Domain Software.

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