The only PBL.sys that I know of is
https://www.spamhaus.org/pbl/removal/ but your IP address doesn't appear to be PBL - ISP Maintained.
I don't know about the PBR.sys but they both seem to be in \System32\Drivers
Have you downloaded anything that could have gotten you these, although I appreciate you may not know how long they have been on your computer.
Should they be unwanted programs, download the free version of MBAM - click on Scan in the left pane then on Custom/Configure Scan and check the box for C:
You could perhaps uncheck the box for Archives but there's no telling where this has come from.
This will be a full scan and will take some time to complete.
You could follow that up with a scan with AdwCleaner.
After you click on Scan it may list some items in the lower pane it considers unwanted programs.
If it does and you want to keep any, then just uncheck their boxes.
If it finds anything else to delete, you will see it in its Log.
It will delete those items when you close the log and hit Cleaning and the reboot.
https://www.malwarebytes.com/mwb-download/https://www.malwarebytes.com/adwcleaner/
