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.
Trojan.Egguard.PrxySvrRST sets a proxy accompanied with a false SSL certificate to perform a man-in-the-middle (MITM) attack.
The installer for this Trojan was included in bundlers.
Malwarebytes protects users from Trojan.Egguard by using real-time protection
and the Anti-Exploit module:
Malwarebytes can detect and remove Trojan.Egguard.PrxySvrRST without further user interaction.
Malwarebytes removes the proxy completely, so if you were using a proxy before the infection, this will have to be re-set.