Backdoor.Mxsender

Risk Level 1: Very Low

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Discovered:: October 10, 2003
Updated:: February 13, 2007 12:08:54 PM
Also Known As:: Trojan Horse, TrojanSpy.Win32.Mxsender [AVP], Mxsender [Mcafee]
Type:: Trojan Horse
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows XP

Backdoor.Mxsender is a Backdoor Trojan Horse that gives an attacker unauthorized access to a compromised computer. It connects to port 8311 of the predetermined servers and waits for commands from its author.

NOTE: Virus definitions dated prior to October 11, 2003 may detect this threat as a Trojan Horse.

Antivirus Protection Dates

Initial Rapid Release version October 10, 2003
Latest Rapid Release version March 29, 2011 revision 025
Initial Daily Certified version October 10, 2003
Latest Daily Certified version March 29, 2011 revision 040
Initial Weekly Certified release date October 15, 2003

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: Kaoru Hayashi

Technical Details

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Internet Security Threat Report, Volume 16