Virus Database

Rash.1737

Description Rash.1737

It is a harmless memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of EXE files that are executed or closed. When infected files are opened, the virus disinfects them. The virus does not manifest itself in any way, it contains the text string:
- Rash97 -

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I-Worm.Scorpion

Description I-Worm.Scorpion

This is a dangerous worm that spreads via the Internet in infected e-mails. The worm itself is a Windows application written in Delphi and about 370K in size.
Upon being executed (by clicking on the attached file, for instance), it installs itself into the system, registers itself as a service process (hidden application), then sends infected messages (with its attached copy), and, depending on the system date, runs its payload routine.
Installation to System
The worm copies itself to the Windows system directory with a name randomly selected from the following variants:
Play.exe
Bigs as.exe
Zorro.exe
Honey.exe
Jefes.exe
Corte de pelo.exe
Tangas.exe
Canibal.exe
Picadita.exe
Josefina.exe
and registers that file in the Registry auto-run key:
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun Scorpion=%filename%
E-mail Spreading
The worm sends itself from infected machines as an attached file with random names as above, and with the Subject and message Body randomly selected from the following variants:
Subjects:
Sorpresa !!!
Este si que es un buen presente
Diviertanse
Todo debe estar limpio
Echale un ojo a esto
Buena PECHOnalidad
Con todo mi aprecio
El aguijon de Scorpion
Traseros
Mujeres
Message body:
Abrelo sin miedo que, no es ningun Virus
No tiene ningun Virus
Abrelo no hay PELIGRO, esta limpio de Virus
Mira que bueno esta esto
Espero que esto te guste
Scorpion hace de las suyas
Esto si esta interesante abrelo que no hay peligro
Dime si te gusto
No tiene Virus, asi que abranlo y disfrutenlo
Observa el gran poder de las mujeres en su parte trasera
To send infected messages, the worm connects to a SMTP server. The worm obtains the name of the SMTP server from the default-system settings.
A victim's e-mail addresses are obtained from the WAB file (Windows Address Book). The messages also are sent each time to:
jajachistes@topica.com
tavojaja@yahoogroups.com
cartones@egroups.com
pensamientos@egroups.com
huateque@egroups.com
jacastro@geoline.net
forodelphi2000@yahoo.com.ar
The worm sends e-mails immediately upon the first start-up, then in time intervals, depending on its internal time counters.
Payloads and other
The worm finds and deletes all *.INF and *.SYS files on a drive where Windows is installed, and the system is destroyed due to this in most cases.
Starting in September, and the 15th of each month, the virus runs itself with some video effect.
The worm also creates and modifies the following registry keys:
HKEY_LOCAL_MACHINESoftwareScorpionHelp
Mail = Negro
Fack = Rojo
These keys indicate that: 1st key - e-mail messages have already been sent; 2nd key - INI and SYS files have been deleted.
Depending on its internal time counters, the worm also closes all active application windows, opens/closes the CD drive, blinks the Num/Caps/Scroll-lock keys, an displays 500 messages:
Scorpion ya está aquí !!!!

I-Worm.Scrambler

Description I-Worm.Scrambler

This is an Internet worm virus that spreads in infected e-mails, sending its copies to IRC channels, and infecting Windows EXE files on a local machine. The worm itself is a Windows executable file about 70K in length written in Microsoft Visual C++.
When an infected file is executed, the virus creates its "dropper" (a file with pure virus code) in the Windows system directory. This file has a random 5-letter name, for example: HIJDE.EXE. This file is used later to send virus copies to Internet and IRC channels.
The virus then scans the Windows directory, looks for Windows executable .EXE files and infects them by writing the virus code to the top of the file. The virus avoids infecting files with names that begin with any of the following letters: E, P, R, T, W. The virus then infects all EXE files in the C:MIRCDOWNLOAD directory, if it exists in the system.
Next, the virus infects the mIRC client to send its copies to IRC channels as well as MS Outlook to spread with e-mail messages.
To infect the mIRC client, the virus tries to create (overwrite) a SCRIPT.INI file in standard mIRC directories on all drives from C: to F:. The infected file names appears as follows:
mircscript.ini
PROGRA~1mircscript.ini
The worm writes a short script to there that sends its "dropper" to each user that enters the infected channel.
The virus creates the SCRAMBLER.VBS VisualBasic in the Windows system directory and writes to there a script program that connects to MS Outlook and sends e-mail messages to the first 90 users from the MS Outlook address book. The messages have an infected attachment (virus "dropper"); the subject is "Check this out, it's funny!"; and the message body is empty. The virus then spawns that script, and spreads to the Internet as a result.
The virus then creates the WINSTART.BAT file in the Windows directory and writes two commands to there that clear the screen and display the following message when that file is executed:
Today..
I'm going to scramble your mind..
The virus also creates the SCRAM.SYS file and saves the text to there:
Scrambler
by Gigabyte
The virus also scans drives for MP3 files and corrupts them.

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