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Discovered:
- July 21, 2004
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Updated:
- February 13, 2007 12:25:34 PM
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Also Known As:
- BackDoor-CFB [McAfee], TROJ_AGENT.AC [Trend], Troj/Agent-AC [Sophos], Agent.E [Panda], Backdoor.Agent.ac [Kaspersky]
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Type:
- Trojan Horse
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Systems Affected:
- Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
Backdoor.Agent.B is a backdoor that installs a .dll file when a user visits certain malicious Web sites. The .dll file allows other malicious programs to perform various actions.
This backdoor is packed with UPX.
Note: Virus definitions dated prior to July 22, 2004 may detect this threat as Backdoor.Trojan.
Antivirus Protection Dates
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Initial Rapid Release version July 22, 2004
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Latest Rapid Release version February 19, 2013 revision 016
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Initial Daily Certified version July 22, 2004
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Latest Daily Certified version June 30, 2011 revision 002
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Initial Weekly Certified release date July 28, 2004
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Threat Assessment
Wild
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Wild Level: Medium
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Number of Infections: 50 - 999
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Number of Sites: More than 10
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Geographical Distribution: Low
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Threat Containment: Moderate
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Removal: Moderate
Writeup By: Kevin Ha
