The Trojan horse, also known as Trojan, in the context of computing and software, describes a class of computer threats (malware) that appears to perform a desirable function but in fact performs undisclosed malicious functions. These functions allow unauthorized access to the host computer, giving them the ability to save their files on the user’s computer or even watch the user’s screen and control the computer.

Trojan horses (not technically a virus) can be easily and unwittingly downloaded. For example, if a computer game is designed such that, when executed by the user, it opens a back door that allows a hacker to control the computer of the user, then the computer game is said to be a Trojan horse. However, if the computer game is legitimate, but was infected by a virus, then it is not a Trojan horse, regardless of what the virus may do when the game is executed. The term is derived from the classical story of the Trojan horse.

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There are currently 4,540 articles listed on trojans.

Name Threat Level Detection Count Date
BOOSTWRITE October 15, 2019
Boot.Alworo July 12, 2011
Boot.Mebromi.B 9/10 0 July 5, 2012
Boot.tidser.b August 4, 2011
Botnet.cacaoweb 1/10 17,117 March 27, 2013
Boxer Trojan January 25, 2012
Bredolab 8/10 2 October 29, 2009
Bredolab.gen.a October 27, 2009
Bredolab.gen.u September 7, 2010
Bredolab.gen.w July 29, 2010
Broken.OpenCommand 9/10 4 July 29, 2014
Brolux 2/10 0 October 19, 2015
BrowserMe 9/10 0 January 20, 2017
BrowserModifier:Win32/Diplugem 9/10 5 December 29, 2015
BrowserModifier.KeenValue PerfectNav 2/10 0 March 7, 2011
BrowserModifier.Matcash 8/10 0 April 18, 2011
BrowserModifier.MSConfig.BHO 8/10 0 August 22, 2012
BrowserModifier.PowerSearch 8/10 0 November 28, 2019
BrowserModifier.Starsdoor October 9, 2009
Brushaloader February 25, 2019
BUBBLEWRAP Trojan April 12, 2019
Buer December 6, 2019
Bugat 8/10 0 February 12, 2010
Bundespolizei Ukash August 22, 2011
BURAN Ransomware June 5, 2019

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