format your computer and reinstall the Operating System.
^This is actually the only way to get safely rid of all kind of malware from your system (assuming it is not a root kit, which it isn't in most cases).
In case of it being a rootkit a reinstall won't help, but since most of these BTC stealing malwares are made by some 17y old script kiddies, the chances are very low. So you should be good to go with a complete format/reinstall.
If your computer is infected with the clipboard hijacker, it's possible it also has keyloggers (can harvest usernames/passwords etc) and possibly even Remote Access Tools (RATs) that could allow hackers to copy files directly from your computer. So, you should consider your computer totally compromised and avoid doing any "sensitive" work on it (accessing internet banking or other secure websites etc)
This is so important.
Change every(!) password you have entered on your PC in the last days/weeks/months (obviously not from your current infected system).
Usually it is not just a clipping malware, but a trojan horse with a backdoor (assuming the creator of the malware wasn't completely incapable).
The best would be to completely disconnect your PC from your network and make a local backup of your important(!) files. Then reeinstall your OS.
Oh, and make sure not to use any cracked OS (e.g. cracked windows), since those
always contain backdoors (e.g. to include you into a botnet).
