TDSS trojan also known as Backdoor.Tidserv [PCTools], Backdoor.Tidserv.I!inf [Symantec], Rootkit.Win32.TDSS.y [Kaspersky Lab], Patched-SYSFile.a [McAfee], Mal/TDSSRt-A [Sophos], Virus:Win32/Alureon.F [Microsoft] is very dangerous. It installs onto your computer through a vulnerability in an already installed programs (mostly in InternetExplorer) or with the help of a rogue antispyware programs. Trojan TDSS uses rootkit-specific techniques designed to hide the