These are 4 samples of Skype Dorkbot / W32.Phopifas. The end of the year presents: “GFI,” “Agnitum Worm,” “Dorkbot” and “TheHacker Trojan” Virus Tracker: Win32:Crypt-NXP [Trj] Downloader Downloader.Generic13.LGV 20121207.A (B) 20121206: “The Hacker Trojan/TheCall WORM_DorkBOT.A””]
Source: http://contagiodump.blogspot.com/2012/12/oct-2012-skype-dorkbot-w32phopifas.html