Trojan.Agent refers to a generic Trojan malware detection. It is used for detections that are either associated with no specific malware families or not enough information is available to pinpoint the malware family.
Backdoor.Farfli is capable of giving access to the affected system for threat actors to perform malicious tasks, such as downloading and then running other potentially files, and logging user keystrokes.
This backdoor can also shut down or terminate systems it’s installed on.
Malwarebytes can remove Backdoor.Farfli without further user interaction.