I was getting some really annoying Adobe Flash pop-up (malware?) on my blog. I reviewed the code many times but I could find any suspicious entries. However, my blog was showing the following advertisement at the bottom of the page.
I didn't have Adsense configured in the blog. Based on my troubleshooting, I noticed that this Ad is coming from a gadget called “Sociable” and somehow this gadget was “calling” the Adobe flash and other malware programs.
The removal of the Sociable gadget fixed the (1) unauthorized Ad (2) Adobe and other malware issues in my blog!