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Published Aug 21, 2009 | Updated Sep 15, 2017

Backdoor:Win32/Agent.ABHN

Detected by Microsoft Defender Antivirus

Aliases: W32/Tdss.1!Generic (Command) Trojan.Tdss.FJ (BitDefender) Win32/Olmarik.IX (Dr.Web) Backdoor.Win32.Neakse.air (Kaspersky) BackDoor-DWL (McAfee) W32/Agent.MIXN (Norman) Trj/Downloader.MDW (Panda) Mal/TibsPk-A (Sophos) BACKDOOR.Trojan (Symantec) Rootkit.Alureon.Gen!Pac.3 (VirusBuster)

Summary

Backdoor:Win32/Agent.ABHN is a trojan that installs Trojan:Win32/Alureon.BJ. Win32/Alureon.BJ is a component of Win32/Alureon - a family of data-stealing trojans. These trojans allow an attacker to intercept incoming and outgoing Internet traffic in order to gather confidential information such as user names, passwords, and credit card data.
Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as the Microsoft Safety Scanner (http://go.microsoft.com/fwlink/?LinkId=212742). For more information, see http://www.microsoft.com/protect/computer/viruses/vista.mspx.
 
Win32/Alureon may modify DNS settings on the host computer, thus the following steps may be required after the Win32/Alureon removal is complete:
  • If the computer has a network interface that does not receive a configuration using DHCP, reset the DNS configuration if necessary. For information on configuring TCP/IP to use DNS in Windows XP, see http://support.microsoft.com/kb/305553
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