W32.Ganda.A@mm

W32.Ganda.A@mm is a mass-mailing worm that sends email to the contacts in the Windows Address Book. The worm contains its own SMTP engine and attempts to use the computer's default SMTP server, or an open mail server in Sweden, for email propagation.

W32.Ganda.A@mm sends two email messages with the following characteristics, in Swedish or English, depending on the infected systems' language:

Subject:
Swedish:

• Olaglig_skärmsläckare?
• Rashets eller inte?
• Hakkors.
• Suspekta semaforer.
• Avskyvärd_reklam.
• Överviktiga_förnedras.
• Go ack ack ack....
• Är_USA_ett_UFO?
• Korkad president.
• Katt, hund, kanin.
  

English:

• Screensaver advice.
• Spy pics.
• GO USA !!!!
• G.W Bush animation.
• Is USA a UFO?
• Is USA always number one?
• LINUX.
• Nazi propaganda?
• Catlover.
• Disgusting propaganda.

Attachment: [a-z][a-z].scr


The worm also attempts to terminate the services of several antivirus and security products.



This worm appears to have originated in Sweden.

Protection

• Initial Rapid Release version March 17, 2003
• Latest Rapid Release version November 13, 2009 revision 034
• Initial Daily Certified version March 17, 2003 revision 004
• Latest Daily Certified version November 13, 2009 revision 033
• Initial Weekly Certified release date March 19, 2003

Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

• Wild Level: Low
• Number of Infections: 50 - 999
• Number of Sites: More than 10
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Moderate

Damage

• Damage Level: Medium

Distribution

• Distribution Level: High