I have a curious sequence of events which may be related.
The symptom: My PC suddenly began to take ages to perform a link at the end of a compile. This was assocaited with continuous disk activity. I looked in Task Manager and:
- plenty of memory
- nothing in particular using excessive amounts of CPU
- process IDs for recent tasks have values of 6 figures - normally PID's never have more than 4 digits.
- one task - GoogleToolbarNotifier - is using 160,000 handles, and this is clocking up as I watch it. That app obviously has a serious handle leak.
- also notice a SearchSettings.exe which I'm suspicious about.
I reboot and kill the GoogleToolbarNotifier task and all the tasks with high PID's but new tasks still get assigned high PID's.
Also: a day or so ago GoogleToolbarNotifier suddenly appeared in my taskbar and warned me that something was trying to change my default search engine from Google to Yahoo.
I ran MalwareBytes and it found 9 items all associated with Youtube Downloader which I had just installed. Removed them and uninstalled YD.
I may have accidentally installed some toolbar extension when I installed YD. I can't remember.
And the question is...
Why do I have high-value PID's in task manager and is it indicative of unwanted or suspicious behaviour?