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.
Elex is adware that will go to any lengths to infiltrate and stay on user systems. The methods it use are so aggressive that their components are classified as Trojans. Elex is also associated with browser hijackers like Youndoo, Trotux, Yelloader, YesSearches, and many more.
Elex is spread by using bundlers.
Removal of Elex sometimes requires special instructions. You can find several examples in our Malware Removal Self-Help Guides.