Sophos

W32/MyDoom-S

Aliases
  • Ratos
Category
Type
What to do
Prevalence low high

Summary

 
How it spreads
  • Email attachments
Affected operating systems Windows
Included in our products from October 2004 (3.86)
Protection available since 16 August 2004 06:51:26 (GMT)
Detected by All Sophos products

Action

More Information

W32/MyDoom-S is a mass-mailing worm which harvests email addresses from your hard drive. The worm copies itself to the Windows folder and the System folder, and adds a registry entry to ensure it starts whenever you logon.

Emails sent by this worm have the subject line photos and an attachment named photos_arc.exe. W32/MyDoom-S is a mass-mailing worm which harvests adresses from your hard drive.

W32/MyDoom-S copies itself to the Windows folder as rasor38a.dll and to the System folder as winpsd.exe. The worm then creates the following registry entry to ensure it is run at system logon:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
winpsd = <SYSTEM>\winpsd.exe

W32/MyDoom-S arrives in an email with the following characteristics:

Subject line: photos
Message text: LOL!;))))
Attached file: photos_arc.exe

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