Virus Profile: W32/MyLife.c@MM

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 3/31/2002
Date Added: 3/31/2002
Origin: Unknown
Length: 7,680 bytes
Type: Virus
Subtype: E-mail
DAT Required: 4195
Removal Instructions
   
 
 
   

Description

This is a virus detection. Viruses are programs that self-replicate recursively, meaning that infected systems spread the virus to other systems, which then propagate the virus further. While many viruses contain a destructive payload, it's quite common for viruses to do nothing more than spread from one system to another.

Indication of Infection

  • Presence of: LIST.TXT.scr (7,680 bytes) in the system directory.
  • Messages bearing the properties described above in your 'Sent Mail' folder.

Methods of Infection

When executed, the worm propagates itself to all addresses found in the Outlook Address book and addresses on the MSN Messenger contact list, using Microsoft Outlook. The worm copies itself to the System folder, modifying the Registry to run this copy at subsequent startup.

Aliases

I-Worm.MyLife.c (AVP), W32.MyLife.C@mm (Symantec), Win32.MyLife.C (CA), WORM_MYLIFE.C (Trend)
   

Virus Characteristics

This mass-mailing worm, written in Visual Basic 6, uses Microsoft Outlook to send itself to all addresses in the Outlook Address book and addresses on the MSN Messenger contact list. It arrives in an email containing the following information:

Subject: The List
Attachment: LIST.TXT.scr

The attachment is a UPX packed PE file. When executed on the local machine, the following message box is displayed whilst the worm copies itself to the System folder, and uses Outlook to propagate itself to all address found in the Outlook Address book and addresses on the MSN Messenger contact list:

The following Registry key is added to ensure the worm is executed at subsequent system startup:

  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\
    Run\sys=C:\WINDOWS\SYSTEM\LIST.TXT.scr

Upon restarting the machine, the worm does not propagate again, and the above message box is not displayed.

If the worm is run when the minutes of the hour is greater than 50, the worm displays a message box and attempts to delete all files on the C: drive and to format drives C, E, F, G, H, and I. (This payload does not work on WinNT/2K/XP systems)

   

All Users:
Use current engine and DAT files for detection and removal.

Modifications made to the system Registry and/or INI files for the purposes of hooking system startup, will be successfully removed if cleaning with the recommended engine and DAT combination (or higher).

But in some particular cases, the following steps need to be taken.

Please go to the Microsoft Recovery Console and restore a clean MBR.

On Windows XP:

  • Insert the Windows XP CD into the CD-ROM drive and restart the computer.
  • When the "Welcome to Setup" screen appears, press R to start the Recovery Console.
  • Select the Windows installation that is compromised and provide the administrator password.
  • Issue 'fixmbr' command to restore the Master Boot Record
  • Follow onscreen instructions.
  • Reset and remove the CD from CD-ROM drive.


On Windows Vista and 7:

  • Insert the Windows CD into the CD-ROM drive and restart the computer.
  • Click on "Repair Your Computer".
  • When the System Recovery Options dialog comes up, choose the Command Prompt.
  • Issue 'bootrec /fixmbr' command to restore the Master Boot Record.
  • Follow onscreen instructions.
  • Reset and remove the CD from CD-ROM drive.
   

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