This is usually not a good sign, but we’ll see what the scans show.
You may want to check the information on the first post of this thread under Virus/Worms for you to check your machine for malware: http://forum.avast.com/index.php?topic=53253.0.
After doing the scans your are currently doing, follow the directions of obtaining an MBAM log (make sure you update MBAM first) and the OTS logs (save them as ANSI and not Unicode). Post the MBAM log and the OTS log as an attachment (Additional Options > Attach > Post). Depending on the log reports, I can refer you to our Certified Malware Removal Expert named Essexboy.
Let me know if you have any questions. Thank you.