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.Agent.WR is a detection for Trojans based on the PE resource, WEERTD.
The Trojan.Agent.WR family of trojans are known to download and drop adware on affected systems.
Malwarebytes protects users from Trojan.Agent.WR by using real-time protection.
Malwarebytes can detect and remove Trojan.Agent.WR without further user interaction.