Virus Database

GencVir.1000

Description GencVir.1000

It's a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM-files that are executed. It contains the internal text string: "GencVir (C) 1993 by HACKER". On October, 10th it decrypts the message and writes it (INT 21h/AH=40h) in random selected handle:
Ey Turk gencligi!
Birinci vazifen Turk istiklalini,Cumhuriyetini,ilelebet,muhafaza ve mudafaa
etmektir. Mevcudiyetinin ve istikbalinin yegane temeli budur.Muhtac oldugun
kudret,damarlarindaki asil kanda,mevcuttur
M.Kemal ATATURK

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Macro.Word.Showoff

Description Macro.Word.Showoff

text (c) Michal A. Egler
This virus contains the following encrypted macros: Hayo, AutoOpen, Nomercy2, Organizer, ToolsMacro, FileTemplates.
On the 13th day of any month the virus creates the file C:WINDOWSSYSTEMNOMERCY.DLL. This file contains a debug script with the NoMercy.575 DOS parasitic virus dump code. By using this script the virus creates the virus dropper NOMERCY2.COM.
Next the virus deletes files:
C:*.BAT
C:*.SYS
C:WINDOWS*.GRP
C:WINDOWS*.DRV
C:WINDOWS*.DLL
C:WINDOWSSYSTEM*.DRV
C:WINDOWSSYSTEM*.DLL

It also inserts the following commands into the AUTOEXEC.BAT file to execute the virus dropper:
@echo off
nomercy2.com

After restarting the computer the virus code stays resident and infects each executed COM and EXE file.
The virus displays a UserDialog containing the text:
No Mercy II [Hell on WinWord], The Madness Continuesall..
wall
NoMercy II ©1997 by CrazybitS
From the land of Smoking Vulcanoes and Gamelan Orchestras
This Macro Virus Was Released for follow his brother No Mercy

Sometimes the virus changes names of macros:
Nomercy = AutoOpen
AutoClose = Nomercy2
AutoExec = Hayo
ToolsMacro = ToolsMacro
Organizer = Organizer
FileTemplates = FileTemplates

Sometimes the virus displays a UserDialog with the text:
No Mercy II Was Distrub !
Mmmmm.... you just lost your files !
Don't do it again !

Macro.Word.Shuffle

Description Macro.Word.Shuffle

This is a stealth Word macro virus. It contains one macro in documents (AutoOpen) and four macros in NORMAL.DOT (XXXXX, FileSaveAs, ToolsMacro, FileTemplates).
The virus infects the global macros area (NORMAL.DOT) on opening an infected document (AutoOpen) and writes itself to documents that are saved with new name (FileSaveAs). The virus infects the documents in usual way, while infecting the NORMAL.DOT the virus deletes all macros in there, minimizes the Word window, and copies its macros string-by-string to the global macros area.

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