Mod Edit: Split from http://www.bleepingcomputer.com/forums/t/545486/chrome-windows-opening-automatically-with-spam-sites/ - Hamluis.
I am experiencing the exact same symptoms. The strange thing about it is I don't use Windows 7 for Internet browsing or email. Windows 7 is one of several virtual machines that I run on a Mac for software development and testing. So far this issue has been insurmountable. Once the "Chrome" windows start, it isn't long before CPU usage is over 90%. I have tried Windows Defender, SpyBot 2.4, Kaspersky, TrendMicro with no malware found. TrendMicro found a trojan called TSPY_EMOTET.SMJ and removed it. Things seemed to get better after that. But after about a half hour the Google Chrome thing was back as bad as ever. Additionally there is a menu that pops out and goes away before I can even read what it says. Eventually I end up with a Host Process Sever Terminated Error along with message boxes that say "Stack Overflow(6)", "Message From Webpage". I have had this issue for about 4 days and have spent most of that time trying to eliminate this malware.
Have you had any luck at least identifying the culprit?
Edited by hamluis, 26 August 2014 - 05:50 PM.
PM sent new OP - Hamluis.