Troj/Agent-QDF

The name of the malware is Troj/Agent-QDF, and there's a chance it might land in your email inbox. Troj/Agent-QDF, like its cohorts, is frequently found attached to emails. Troj/Agent-QDF may have an odd name, but it's just one of many Trojans looking for a way to sneak into your computer.

Like any good criminal, it also has an alias. Troj/Agent-QDF may go by the name Trojan-Dropper.Win32.Delf.iff. This malware has been actively infecting Windows operating systems for some time. The good news is that antivirus protection against it has been available since late January 2011. If you are not sure whether you might have picked up this malware, a myriad of digital security providers, including Microsoft Corporation, offer free security scans.

What are some indications that your operating system might have suffered an intrusion by Troj/Agent-QDF? Often signs of an intrusion by malware like Troj/Agent-QDF may manifest immediately. However, the victim may not recognize what the signs mean or know what to do about the security breech that has just occurred.

One sign may be less than optimal performance, or the cessation of commonly used software. Sometimes instability hits the operating system. Other times, you might be unexpectedly confronted with popup windows.

In a typical scenario, this is how an intrusion by an agent like Troj/Agent-QDF occurs. While visiting a website, you click on a photo and in a flash, all the Internet Explorer windows in the browser close and a Vista Antivirus Pro window pops up. Unable to close the popup, you battle with a Trojan agent – perhaps similar to Troj/Agent-QDF – for some time, until, in complete desperation, you remove the battery from your laptop. You then start to search for a solutions provider to help wrest your computer back from the Trojan's grasp.

Welcome to the frustrating experience of dealing with something like Troj/Agent-QDF. The stealthy attack of malware like Troj/Agent-QDF can fool anyone. One example that circulated during the aftermath of the 9/11 terror attack, is a Trojan that came disguised as a donation request from the American Red Cross. That's no surprise, since those who spread malware will try to associate the Trojan with whatever is rising to the top of the search engines' results pages in order to ensnare other victims. Troj/Agent-QDF can even come disguised as an email from your friend, using a relaying mail service.

What's the purpose of malware like Troj/Agent-QDF? Its designer's motivations may range from malicious code designed to test defenses to invasive measures to capture your operating system in order to add your personal computer to a nefarious network known as a botnet. Or, a cybercriminal might just want to steal your personal information. In sum: there are no good motives here.

What's the answer to threats like Troj/Agent-QDF? There are a host of companies that offer free detection scans and even detailed instructions on how to remove Troj/Agent-QDF from your system. These include major antivirus software providers such as Sophos. Just make sure that the solution provider is legitimate by looking for reviews from reputable websites. That's because – you guessed it – Troj/Agent-QDF could come under any guise.

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