Recently, AVG had begun flagging Adminpak.msi, specifically cmbins.exe as a threat, with no other explanation as to why. I have removed the existing adminpak.msi and replaced it with a fresh extract and the next scan flagged it the same way.
Any reason why this just started happening in the past month?
It sounds like a false detection. Please can we get the files for analysis. Add them both to a zip file and attach to your next post. If the attachment is over 10mb, upload them to our FTP Server - http://www.avg.com/gb-en/faq.num-2142#num-2142 - use your login address as the filename so we know which one it is.