Ask The Experts

The follow information is obtained from Yahoo! online community and does not express the views, opinions, or technical advice of On-Site. On-Site is not responsible for damages from use of information from Yahoo! Answers

	what is a trojen virus? what is a trojen virus? 12 answer(s)
	Best Answer: a virus thats very sneaky and just opens up when your computer is vunrable View more answers to this question.
More Answers Chip It's a virus that gets on to your computer by pretending to be a good program. Fluttershy Something that can seriously f*** your computer up. Oscar It is a virus disguised as something else example: you download a video but it is actually a virus inside the code. logical_13 I f ur referring to computer viruses then a trojan virus (trojan horse virus) is a virus received from downloading Innocent software or just downloads that have a hidden virus or cookie that is harm full to your pc. ? A Trojan virus is a type of virus that appears to be useful software so many people will download it thinking it is safe. Stephen Chip is right, but I'd like to add that it is spelled Trojan, and is named after the Trojan Horse, where soldiers from Greece hid in a wooden horse given to Troy (people from troy are named trojans so the horse was called a trojan horse), and then attacked the people accepting the gift. I'm a computer expert, as well as a history buff Joshua Defined by wikipedia A Trojan horse, or Trojan, is software that is intended to perform, simultaneously, a desirable (expected) effect and a covert (unexpected) effect. Trojan horses can make copies of themselves, steal information, or harm the computer system.[1] The term is derived from the Trojan Horse story in Greek mythology. Some of the most popular trojan horses are Netbus, Subseven and Y3K RAT. Security Trojan may allow a hacker remote access to a target computer system. Once a Trojan has been installed on a target computer system, a hacker may have access to the computer remotely and perform various operations, limited by user privileges on the target computer system and the design of the Trojan. Operations that could be performed by a hacker on a target computer system include: Use of the machine as part of a botnet (e.g. to perform automated spamming or to distribute Denial-of-service attacks) Data theft (e.g. retrieving passwords or credit card information) Installation of software, including third-party malware Downloading or uploading of files on the user's computer Modification or deletion of files Keystroke logging Watching the user's screen Crashing the computer Anonymizing internet viewing Trojan horses in this way require interaction with a hacker to fulfill their purpose, though the hacker need not be the individual responsible for distributing the Trojan horse. It is possible for individual hackers to scan computers on a network using a port scanner in the hope of finding one with a malicious Trojan horse installed, which the hacker can then use to control the target computer.[2] A recent innovation in Trojan horse code takes advantage of a security flaw in older versions of Internet Explorer and Google Chrome to use the host computer as an anonymizer proxy to effectively hide internet usage. The hacker is able to view internet sites while the tracking cookies, internet history, and any IP logging are maintained on the host computer. The host computer may or may not show the internet history of the sites viewed using the computer as a proxy. The first generation of anonymizer Trojan horses tended to leave their tracks in the page view histories of the host computer. Newer generations of the Trojan horse tend to "cover" their tracks more efficiently. Several versions of Slavebot have been widely circulated in the US and Europe and are the most widely distributed examples of this type of Trojan horse.[2] [edit]Current use Due to the popularity of botnets among hackers and the availability of advertising services that permit authors to violate their users' privacy, Trojan horses are becoming more common. According to a survey conducted by BitDefender from January to June 2009, "Trojan-type malware is on the rise, accounting for 83-percent of the global malware detected in the world". This virus has a relationship with worms as it spreads with the help given by worms and travel across the internet with them. [3] BitDefender also states that approximately 15% of computers are botnets - usually an effect of a Trojan infection.[4] [edit]Popular Trojan Horses Netbus (by Carl-Fredrik Neikter) Subseven (by Mobman) Y3K Remote Administration Tool (by Konstantinos & Evangelos Tselentis) Back Orifice (Sir Dystic) Joshua darling Administrator of http://www.darlingpchelp.net Firehawk2008 A Trojan horse virus is like the historical Trojan horse. With the computer trojan, it will look like good software, but it's actualy malware, such as rouge AV. MCLninja a virus thats very sneaky and just opens up when your computer is vunrable mw451 Did you look it up rather than being lazy? Tispy You get it surfing bad sites like prono sites, which makes it sort of a ironic name for the virus, no? Ugur there is no trojen virus. peoples that they answers are wrong if you ask the question, What is a Trojan virus, that is right.:)