This is kind of funny: as DrWeb writes, they have finished analyzing the Trojan Trojan.Tofsee. The behavior of the malware is almost normal, it sends spam, but the virus has one chip - after infection, it begins to protect the system from other viruses and remove existing competitors.

As they
say in a press release: “Sometimes users neglect the need to install antivirus software on their computer, and as a result, many of them become victims of malware distributors. We can say that in this respect, slightly more than others were lucky except to users whose computers were infected with the Trojan.Tofsee Trojan.
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There is a certain logic to this. If several trojans inhabit the victim’s system, the user may notice a drop in performance and still begin to check the system. In this case, under the distribution will get all. And so you can live, send spam and allow the user to simultaneously perform their tasks. Almost symbiosis.
As DrWeb writes again, the Trojan is infected via social networks and Skype. The victim is sent a link by which he can get acquainted with allegedly intimate photos or video recordings “Wow! You are kidding? This photo lay out ...) ". Then the victim will be redirected to the page where she is invited to download the plugin, allowing you to see your indecency. Actually, this plugin is Trojan.Tofsee.