W32.Sowsat.J@mm is a variant of W32.Sowsat@mm
, a mass-mailing worm that spreads by using its own SMTP engine and spreads through IRC. The email has a variable subject line and attachment name. The attachment should have a .exe file extension.
The worm is written in Borland Delphi and is packed with UPX.
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.