Symantec.com > Security Response > Trojan.Myss.B

Trojan.Myss.B

Risk Level 1: Very Low

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Discovered: October 3, 2003
Updated: February 13, 2007 12:08:30 PM
Also Known As: Backdoor.Avstral, Backdoor.Avstral [KAV], BackDoor-AWW [McAfee], MultiDropper-GP trojan [McAfee, Win32.Myss [CA]
Type: Trojan Horse
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP


Trojan.Myss.B is a Trojan Horse that can capture keystrokes and periodically send them to a predefined email address.

This threat is compressed with UPX.

NOTE: Virus definitions dated prior to October 3, 2003 may detect this threat as Backdoor.Avstral.

Protection

  • Initial Rapid Release version October 3, 2003
  • Latest Rapid Release version August 20, 2008 revision 017
  • Initial Daily Certified version October 3, 2003
  • Latest Daily Certified version August 20, 2008 revision 016
  • Initial Weekly Certified release date October 8, 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: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Moderate

Damage

  • Damage Level: Medium

Distribution

  • Distribution Level: Low

Writeup By: Yana Liu
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