Virus Portal - At a glance description of Trifor - The Panda Software Virus Encyclopedia

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Trifor

The Threat Level varies according to the Distribution and Damage levels


	Common name:			Trifor
	Technical name:			Trj/Trifor
	Threat Level:			Low
	Type:			Trojan
	Effects:			It does not have any destructive effects. It is downloaded to computers that visit a certain web page.
	Systems affected:			Windows XP/2000/NT/ME/98/95
	Detection updated on:			May 12, 2003
	In circulation?			No

	Brief Description
	Trifor is a Trojan that does not have any damaging effects that spreads via the Internet. In order to do this, it exploits the iFrame vulnerability in versions 5.01 and 5.5 of Internet Explorer. This Trojan is code written in HTML, which is included in the contents of a web page. When users visit this site, the Trojan is automatically downloaded to their computer. Then, Trifor changes the Home page of Internet Explorer to the web page that contains the virus code.
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	Visible Symptoms
	Trifor is difficult to recognize, as it does not display any warnings or messages that indicate that it has infected a computer.
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Last updated: May 12, 2003