(part 2) The Extensions tab only has AVG Security Toolbar, Nanny for Google Chrome, and Web Assistant (not downloaded from Chrome Web Store). Therefore the only thing I would wonder about is the Web Assistant, but I'm not sure where to get the code that you mentioned???? Any help you could provide would be fabulous, this thing is just becoming a pain.
It's a new virus which will not be picked up by any anti-virus software. I'm not sure whether it is that extension, but I do know that some extensions contain the malware.
You need to take a look in your ProgramData file [C:/ProgramData] there should be a file with random letters and that should be it. Open the folder first and if it contains a chrome file then that’s the malware.
Please don’t delete anything without knowing what it is/does first!