Virus Database

I-Worm.MsWorld

Description I-Worm.MsWorld

This is email worm spreading by affecting MS Outlook. The worm itself is Win32 executable file about 130K of length. The worm is written in Visual Basic language.
When the worm file is run (double click on attached EXE file) it displays "miss World" pictures, for example:

and then runs spreading and two trojan routines.
To spread the worm uses a standard way. It connects to MS Outlook, gets up to 50 addresses from address book and sends messages to there. The messages have:
Subject: Miss World
Body: Hi, %èìÿ ïîëó÷àòåëÿ%
Enjoy the latest pictures of Miss World from various Country
The attached file has the name of original EXE file that was activated. The "original" EXE file name in which the worm was received is MSWORLD.EXE.
Next the worm appends to the end of C:AUTOEXEC.BAT file DOS batch commands that display the message:
This Everything for my Girl Friendall......, (CatEyes, KRSSL, SS Hostel)
and then format all local fixed drives.
The worm then tries to delete the system registry files and their backups:
SYSTEM.DAT, SYSTEM.DA0, USER.DAT, USER.DA0
Because .DAT these files are usually locked by system, the worm fails to delete them.
The worm then exits.

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Sunset.633

Description Sunset.633

This is a very 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 several anti-virus programs: ADINF, DRWEB, AIDSTEST, AVP, and TBAV according to the string (two bytes per names):
ADDRAIAVTB
While infecting, the virus stores the date of infection in files. When an infected file is executed on the 13th of the following/subsequent month, the virus erases sectors on the hard drive.
The virus contains the text string:
Sunset v1.00 (c) Chaos OverLord

SuperVirus.1175

Description SuperVirus.1175

It is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of EXE files that are executed. Depending on the system date the virus corrupts the disk sectors. The virus contains the text string:
Super F-117 Virus 93/03

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