trojan.agent.rvgen

Does avast find Trojan.agent.rvgen?

https://www.avast.com/virus-update-history

Keep in mind that different vendors have different names for malware.
e.g. one can name something Trj.ABC and a other will call it Trj.001

You can lookup how vendors are calling something at:
https://www.virusbtn.com/vgrep/index

Pls scan the file at Virus Total and if avast! not block it send it to Avast! VirusLab:)Post the Virus Total Result here.

Trojan.agent.RVGen is a Malwarebytes detection

avast detect this version 9 months ago
https://www.virustotal.com/en/file/6d6b3aa7e29cb930b5eb16b7985ebfec3454f19601e0a5f831070d01ceb8b135/analysis/