The W32.Sasser.B@mm worm has the following characteristics:
W32.Sasser.B.Worm is a variant of the Sasser Worm that is a network
aware worm that exploits the LSASS
Microsoft vulnerability (MS04-011).
It spreads by scanning randomly chosen IP addresses on MS systems that
have not been patched. MS04-011 was announced on April 13, 2004.
To protect critical information assets from the recently found new
blended threat, Sasser worm, you'd need not only an antivirus solution
but also firewall and intrusion detection technology. Symantec advises
home users to use Norton Internet Security to protect your computers
and keep your subscription valid all the time in order to receive
protection updates via LiveUpdate automatically.