First of all,
You have a virus infection there. One virus I can see is
Worm Rbot.Ho. It opens a backdoor into your computer, so your computer can basically be remotely controlled to perform attacks on websites, send spam, etc without you even knowing. In this case, its attack websites.
Could you please pay a visit to
Housecall and scan for and delete/clean any infections it finds.
Then reboot your PC and post a fresh log.