Trojan.Sirefef.BV

The Trojan.Sirefef.BV Trojan is a dangerous malware infection that is part of a multi-component malware attack typically used to cause browser redirects. Basically, the main purpose of Trojan.Sirefef.BV is to hijack the infected computer system's web browser and force it to visit malicious websites. Trojan.Sirefef.BV in itself does not carry out the actual browser redirects, but allows malicious code to be executed on the infected computer, which eventually allows criminals to carry out these kinds of attacks.

First detected in February of 2012, as of March of 2012 Trojan.Sirefef.BV has quickly gained hold and a large number of infections have been reported in this last month alone. Trojan.Sirefef.BV has a high potential for causing damage on the victim's computer system, depending on the extent of other malware associated with this Trojan infection. Trojan.Sirefef.BV is contained in an executable file around 6 MB in size. Like most Trojans, Trojan.Sirefef.BV has no way of spreading from one computer to another, usually relying on other malware or on social engineering in order to infiltrate its victims' computer systems. It is usually detected as a Sirefef variant or as Zaccess, depending on the manufacturer of your security software. To prevent a Trojan.Sirefef.BV attack, ESG malware analysts recommend obtaining the latest updates for your security software and operating system. Trojan.Sirefef.BV has been found to attack most versions of Microsoft Windows, including the three most popular of these, Windows XP, Windows Vista, and Windows 7.

How Trojan.Sirefef.BV Fools Your Computer System

As was mentioned before, Trojan.Sirefef.BV tends to spread through the use of social engineering this is simply a term used to refer to fooling computer users by taking advantage of gullibility and human weaknesses. However, in order to carry out its attack, Trojan.Sirefef.BV must also fool the victim's computer system. Through an analysis of Trojan.Sirefef.BV, Trojan.Sirefef.BV's code contains the following phrases and text strings:

- Oak Technology Inc.
- AFS2K.sys
- Audio File System
- Copyright © 2011

With this in mind, it is highly probable that Trojan.Sirefef.BV fools your computer system into believing that Trojan.Sirefef.BV is an essential system file, AFS2K.sys, which in turn allows Trojan.Sirefef.BV to execute malicious code without authorization. To deal with a Trojan.Sirefef.BV Trojan infection, ESG malware analysts recommend using a reliable anti-malware program after booting the infected computer in Safe Mode.

SpyHunter Detects & Remove Trojan.Sirefef.BV