|Hitman Pro doesn't contain malware. It is either a bogus version or something to do with the website you downloaded it from. Don't install it. If you need it, try this website:|
On here we usually start with these three:
(blue "Download Now" button on right).
Download and "Save" the file somewhere. Go to the saved file then double click it to run the program. Use the "Scan" button, followed by the "Clean" button.
Junkware Removal Tool (JRT)
(blue Download button).
Download and "Save" the file somewhere. Go to the saved file then double click it to run JRT. It might appear to have stopped at times or flash the screen but sit tight until it has finished.
(use the "download" button rather than the "buy" button).
Install and Run the program but before running the Scan go to "Settings > Detection and Protection" and put a checkmark in "Scan for rootkits". Quarantine anything it finds.
If you use the above please copy/paste the logs on here so that we can see what is going on.
Always pop back and let us know the outcome - thanks