Assuming, these hidden driver files are part of Alcohol 120 they aren't doing you any harm. They will be reported by anti-rootkit software for the simple fact they install themselves as hidden driver files. (And it installs itself as hidden with changing names to avoid detection by games and DRM (digital rights management) software that look to see if it;s on your computer.)
i'd think one way to prove it's alcohol 120 is uninstall and see if the hidden drivers stop returning. You can then choose to reinstall or not