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W32.Gammima

Risk Level 1: Very Low

Discovered:
March 21, 2007
Updated:
March 22, 2007 8:31:44 AM
Type:
Worm
Infection Length:
71,680 bytes
Systems Affected:
Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
W32.Gammima is a worm that spreads through removable media and steals information related to the MapleStory online game.

Note: Symantec strongly recommends that customers take specific steps to control the execution of applications referenced in autorun.inf files that may be located on removable and network drives. Threats such as this one frequently attempt to spread to other computers using these avenues. Configuration changes made to a computer can limit the possibility of new threats compromising it. For more information, see the following document:

How to prevent a virus from spreading using the "AutoRun" feature

Antivirus Protection Dates

  • Initial Rapid Release version March 22, 2007
  • Latest Rapid Release version May 12, 2013 revision 008
  • Initial Daily Certified version March 22, 2007
  • Latest Daily Certified version May 13, 2013 revision 004
  • Initial Weekly Certified release date March 28, 2007
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy

Damage

  • Damage Level: Low
  • Payload: Spreads through removable media.
  • Releases Confidential Info: Steals information related to the MapleStory online game.

Distribution

  • Distribution Level: Low
Writeup By: Masaki Suenaga

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