The file name given in the image shows it was detected on the internet and not your HDD.

So something on your system connected to that URL, you by clicking on a link or something directing you there as FWF mentions.

The IP in the image is for (PeterHost.Ru Hosting Provider)

The fact that a boot-time scan and avg-as didn’t find anything it may be that there is a hidden process responsible for the redirection, etc.

HIJACKTHIS - Program & Tutorial - Also useful as a diagnostic tool - FileHippo Download - HiJackThis - HJT Information HiJackThis Tutorial 1.

You could post the contents of the hijackthis.log file here, you may need to use two or more posts to do this.