DavidR
11
Unfortunately the images you posted aren’t any help.
The idea of the svchost-analyser that I suggested is to first identify which svchost.exe occurrence is the one with the high CPU% (as you mentioned before) and note the PID (Process Identifier) and that is the one you should look at in the svchost-analyser.
Once you open that one you will see all the different processes using that occurrence of svchost.exe as in my image. I would be looking for any strange looking processes, random looking names given their file location, etc.
But this does need further specialist analysis, the saving grace is that avast is blocking these attempts to connect to malicious sites.