Hi - Like many others i seem to have been infected by the backdoor.tdss.565 virus. I have tried everything avaialble on searching for this virus to no avail. I have superantispyware and it shows nothing. I have malware bytes and it shows nothing. I have Drweb Cure it and it shows the spyware as terminated but it always come back. In normal mode the PC is unstable and crashes almost immediately to the blue screen. In safe mode it runs until i try to run something it doesnt like and goes to the blue screen. I have combofix but it causes the PC to crash. Backdoorkiller from Kaspersky always crashes on 80% and i have tried renaming it to all sorts. I have tried most online scans and they come up blank. Please help as i'm at the end of my tether here as i have been working on this for about 2 days and no results. Everytime the PC crashes it restarts. Im on windows 7 ultimate wich should be up to date.