Installation package virus infected?

Hi
Yesterday my WinSCP, among others, was found to be infected with the W32/Sdbot.worm (ED) by my McAfee Virus shield (latest version & DATs). After multiple disk scans I'm fairly sure, that I cleaned my pc. But now each time i try to download the WinSCP installation package (Eng or Int), my Virus shield claim's that the file is infected. Does anybody experience similar problems (with an active virus shield) or is my pc still infected?

thanks & cheers, johannes gassner@physik.unizh.ch

I'm using VShield with the latest DATs as well and it does not find any virus in 3.6.6 installation packages.