Backdoor.Zap

Risk Level 1: Very Low

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Discovered:: January 8, 2001
Updated:: February 13, 2007 11:36:22 AM
Also Known As:: BackDoor-DT [McAfee], Backdoor.MSBot [KAV]
Type:: Trojan Horse
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

This is a backdoor-type Trojan that can allow unauthorized access to your computer. The Trojan file will be either Msstat.exe or Msmouse.exe.

The file Msstat.exe should not be confused with the legitimate application of the same name, MemoryStick Monitor.

Antivirus Protection Dates

Initial Rapid Release version January 9, 2001
Latest Rapid Release version August 20, 2008 revision 017
Initial Daily Certified version January 9, 2001
Latest Daily Certified version August 20, 2008 revision 016
Initial Weekly Certified release date January 9, 2001

Click 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

Distribution

Distribution Level: Low

Writeup By: Gor Nazaryan

Technical Details

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Internet Security Threat Report, Volume 16