New Mydoom virus is not a pretty picture
Security experts are warning internet users to update their antivirus systems to protect against yet another version of the Mydoom worm.
W32/Mydoom.s@MM, also known as Mydoom.s, has emerged as a new variant of the mass-mailing worm, and comes in the form of the .exe attachment, 'photos_arc.exe'.
McAfee's Avert antivirus team warned that it has received "well over 100 reports" of the virus within a three-hour span, mostly from Japan and Europe.
Like previous versions of the infection, Mydoom.s is a mass-mailing program that can automatically construct its own outgoing messages with spoofed 'from' fields to hide the origin of its email.
The worm's payload comes as an .exe file with a single name, which differs from many of the other Mydoom variants that tend to use multiple extensions.
