They seem to be using your drivers for game hacking.
https://www.unknowncheats.me/forum/anti-cheat-bypass/329948-avasthv-kernel-hooking-antivirus.html
https://www.unknowncheats.me/forum/anti-cheat-bypass/493536-avast-anti-virus-vulnerable-driver.html
Given the first topic is from 6 years ago I just wonder if this is still the case, though the second is more recent, 2 years.
Both of which are a long term in security terms.
Note I don’t work for Avast.