Published Mar 02, 2011 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: W32/Beastdoor.AY@bd (Command) Backdoor.Win32.Beastdoor.l (Kaspersky) W32/Beastdoor.2_07A (Norman) Backdoor.Beastdoor.FA (VirusBuster) Trojan horse BackDoor.Generic2.PFC (AVG) BDS/Beastdoor.205.A (Avira) Backdoor.Beastdoor.L (BitDefender) Win32/Ulysses.AE (CA) Adware.Zango (Dr.Web) Win32/Beastdoor.207 (ESET) Backdoor.Win32.Beastdoor (Ikarus) Backdoor.Win32.Beastdoor.l (Kaspersky) BackDoor-AMQ (McAfee) Bck/BeastDoor.BG (Panda) Backdoor.Beast.205.b (Rising AV) Troj/BeastDo-V (Sophos) Backdoor.Beasty (Symantec) BKDR_BEASTDOOR.F (Trend Micro)


Backdoor:Win32/Beastdoor.L is a detection for malware that modifies system security settings and allows backdoor access and control of the affected computer.
To detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution. The following Microsoft products detect and remove this threat:
For more information on antivirus software, see
Additional remediation instructions for Backdoor:Win32/Beastdoor.L
This threat may make lasting changes to a computer’s configuration that are NOT restored by detecting and removing this threat. For more information on returning an infected computer to its pre-infected state, please see the following article:
  • Resetting System Security Settings to default:
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