Backdoors

A backdoor (also known as a trap door or wormhole) in a computer system is a method of bypassing normal authentication, securing remote access to a computer, obtaining access to plaintext while attempting to remain undetected. This backdoor may take the form of an installed program (e.g. Back Orifice) or could be a modification to an existing program or hardware device.

A backdoor in a login system might take the form of a hard coded user and password combination which gives access to the system. It should be stated, however, that the motivation for such holes in the security of a system is not always sinister; some operating systems, for example, come out of the box with privileged accounts intended for use by field service technicians or the vendor’s maintenance programmers.

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There are currently 817 articles listed on backdoors.

Name	Threat Level	Detection Count	Date
Backdoor.Win32.Agent.bitb	6/10	0	September 2, 2011
Backdoor.Win32.Agent.bizn	5/10	302	September 2, 2011
Backdoor.Win32.Agent.bjev			August 22, 2011
Backdoor.Win32.Agent.cjpk	6/10	0	June 25, 2012
Backdoor.Win32.Agent.dboe	8/10	1,345	April 22, 2013
Backdoor.Win32.Agobot.aeb	8/10	0	July 24, 2009
Backdoor.Win32.Agobot.agl	8/10	0	July 24, 2009
Backdoor.Win32.Agobot.da	8/10	0	July 24, 2009
Backdoor.Win32.Avstral.o			February 15, 2011
Backdoor.Win32.Bifrose.aajx	8/10	8	November 21, 2011
Backdoor.Win32.Bifrose.ahfs			February 15, 2011
Backdoor.Win32.Bifrose.ahyw			June 6, 2011
Backdoor.Win32.Bifrose.axnl			October 30, 2009
Backdoor.Win32.Bifrose.cafh			December 31, 2009
Backdoor.Win32.Bifrose.for			January 11, 2011
Backdoor.Win32.Bifrose.fqm			February 25, 2011
Backdoor.Win32.Bifrose.fxu	6/10	234	August 31, 2011
Backdoor.Win32.BlackHole	10/10	1	February 3, 2011
Backdoor.Win32.BlackHole.crol	6/10	0	May 2, 2013
Backdoor.Win32.Bredolab.amm	5/10	24	November 6, 2009
Backdoor.Win32.Bredolab.obk			August 17, 2011
Backdoor.Win32.Cakl.ba	6/10	3	September 9, 2011
Backdoor.Win32.Cetorp			February 1, 2011
Backdoor.Win32.Curioso.axf			April 26, 2011
Backdoor.Win32.DarkKomet.eku	6/10	2,658	May 1, 2013

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