Threat Description

Shatrix

Details

Aliases:Shatrix, I-Worm.Shatrix
Category:Malware
Type:Worm
Platform:W32

Summary



Shatrix is a worm that spreads via the Internet being attached to infected emails. The worm also spreads over local network by copying to shared drives. The worm itself is a Windows PE EXE file about 380Kb of length, written in Delphi.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

You may wish to refer to the Support Community for further assistance. You may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



Technical Details



The infected messages have:

Subject: FW:Shake a little
 Body: Hi !
 This will shake your world :-)
 Regards,
 %username%
 Attach:  SHAKE.EXE

where %username% is the name of user of an infected machine.

The worm activates from infected email only in case a user clicks on attached file. The worm then installs itself to the system, runs spreading routine and payload.

While installing the worm copies itself to Windows system directory with the random name and registers that file in system registry auto-run key:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run
SystemInfo = %worm file name%

To send infected messages the worm uses MS Outlook MAPI. To get victim addresses the worm looks for and scans following files:

*.asp *.html *.htm

Depending on system date the worm creates random directories, drops HTML files with texts which are randomly constructed from strings:

MatriX is out there
 MatriX has You...
 MatriX is All around You
 010011010110000101110100011100100110100101011000




Technical Details: Kaspersky Labs; January 2002


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