Virus Database

Critico.969

Description Critico.969

It is not a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself into the middle of COM and EXE files that are executed. While infecting a file the virus scans for a 'cave' that contains constant data, and overwrites these data. Depending on the system date and time the virus decrypts and displays the message:
<------- ERROR CRITICO: Fuga de presi-n en el monitor.

then it manifests itself by a video and sound effect.

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I-Worm.Funny

Description I-Worm.Funny

This is an Internet worm written in the scripting language "Visual Basic Script" (VBS). The worm uses MS Oulook to spread its copies by e-mail. Upon activation, the worm sends its copy to all recipients from the MS Outlook address list. The infected message has only the subject line "Funny story" and the attached file "FUNNY_STORY.HTM.vbs" that is the worm itself. Depending on system settings, the actual extension of the attached file (.vbs) may not be displayed.
The worm carries the Trojan program code of Trojan.PSW.Hooker. After spreading, the worm writes this program onto a disk and starts it.

I-Worm.Galil

Description I-Worm.Galil
Galil is a worm virus spreading via the Internet as an attachment to infected emails. The worm consists of several components, all of which are Windows PE EXE files written in Visual Basic.
Worm components:

Main file: "iLLeGaL.exe", size approx. 81KB
Spreading component: "Mplayer.exe", size approx. 14KB when compressed by UPX, the decompressed size is 37KB
SMTP control: "SMTP.ocx", size approx. 26K when compressed by UPX, the decompressed size is 90KB
Installing
When the main worm file is run it installs itself and its other components into the system. While installing the worm copies its main file to the Windows system directory under the name "iLLegGaL.exe". The other worm components are installed into the same directory. The "Mplayer.exe" component is then registered in the system registry auto-run key:
HKLMSoftwareMicrosoftWindowsCurrentVersionRunServices
iLLeGaL = %SystemDir%Mplayer.exe
The worm then displays a fake Flash animation and the message:
Sorry !
Looooooooool , thanx fo da time u spent thinkin ov me
Spreading
The worm reads emails from victim computer MS Outlook address books and searches for email addresses in .HTM and .HTML files. To send infected messages the worm uses a direct connection to SMTP servers.
Infected email attributes include:
Subject: Fwd: Crazy illegal sex !

The message body text is randomly selected from a file on the C: drive or is in HTML format and contains text such as below:
Note: forwarded message attached.
Do You Yahoo!?
Yahoo! Finance - Get real-time stock quotes
Forwarded Message [ Save to my Yahoo! Briefcase | Download File ]
From: Sara1987@yahoo.com
To: Virgin_gurlz_N_boyz@yahoogroups.com
Date: 24 Aug 2002 17:11:18 -0000
Subject: Fwd: Crazy illegal Sex

Hii
Is it really illegal in da USA?
who knows :P
If u have a weak heart i warn u
DON'T see dis Clip.

e.t.c.
Attachments:
iLLeGal.exe or illegalSex.zip
The worm activates from infected emails only when a user clicks on the attached file. If the attachment file is clicked the worm installs itself to the system and runs its spreading routine and payload.
Payload
The 'Galil' worm creates a new key (counter) in the system registry:
HKLMiLLeGal
This counter is increased (advanced) each time the worm is run. When the counter reaches '5' the worm deletes all files on the D: E: F: and G: drives and then displays the message:
ZaCker
No Peace Without war,i hate war but im forced to love it,Hidden Power's gonna b there wherever u r

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