DavidR
11
Did you happen to do a custom scan and elect to scan memory ?
I suspect so as the mention of a PID isn’t usual for normal scan detection elements.
My guess is that you are doing a Custom scan in which you have elected to scan Memory and that all these detections are in memory. Since they aren’t physical files they can’t be moved to the chest, deleted, etc. so there is no action that can be taken, hence the Apply button being greyed out.
The detections in memory are frequently other security applications loading unencrypted virus signatures into memory.
What other security applications do you have installed ?
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You can check the report files for the actual scan that you did that will have the file name, location and malware name of the detections. Check the C:\Documents and Settings\All Users\Application Data\AVAST Software\Avast\report (XP) or C:\ProgramData\AVAST Software\Avast\report (Vista, Win7, this location is hidden by default so you may have to unhide it).
See image extract of that folder and some of the scans I have setup on my system, the file name will match the scan name unless you changed it.