O.K.
I ran DrWeb CureIt and found nothing
I ran KAV Rescue Disc and found 7 trojans, but it was old virus def db (log attached to this post - unfortunatelly in polish)
I haven't got configured internet connection but it's OK by now.
I downloaded new virus definitions and started KAV once again
I downloaded (on other windows-based computer) all Live CD from your previous post, it is;
KAV, BitDefender, F-Secure, Avira, Trinity, AVG, SARDU plus some others: McAfee, SAS Portable
and burnt them on CDs/DVDs.
But most of this stuff (except maybe SAS) is simple AntiViruses without anti-rootkit and anti-malwere options.
I live in a dormitory where WiFi is strictly restricted. (hidden SSID, MAC Filtered, WPA2 etc...)
I'm not much familiar with GNU/Linux, but if Live CD is based on full LINUX distribution (like KAV, BitDef)
it's no problem to change MAC address and configure WiFi-card otherwise I don't have possibility to update definitions.
I found ubcd4win as a good alternative, but VISTA, I have, was provided as OEM without any installation files.
It has preinstalled Windows PE environment on hard drive, accessible from BIOS, instead.
I think I can download TDSSKiller using KAV Rescue Disc and copy it to some place on a system-disc (C: in my case, NTFS)
and then rename it to random name; change extention to .com and boot a) WinPE or b) Safe-mode with command line.
It should run wihout installation. Am I right?
My question is: Does it have any chance of success? And which option is better? (In my opinion "a" is safer, isn't it?)
I can also try the same trick with SAS Free and MBAM. Save logs and post them here.
And after that try to use sfc /scanonce ... ?
I appologise for log file it is UTF8 ANSI file written in polish