Ads by Trust Media Viewer are referring to an adware infection and detected as a potentially unwanted program. It highlights free adware removal tools and sources that are necessary to clean your machine. Ads by Trust Media Viewer are technically not a malware but it does exhibit ample of vicious traits like as rootkit abilities to hook deep into the operating system and in general just hindering with the victim experience. Some of the common issue you may face are search infection, homepage settings, change in desktop background, slowdown of machine, facing same pop-up several time due to this threat. Basically, this adware infection has been designed for the objective to improve the promoting revenue for online hackers Thus, it is advised that remove Ads by Trust Media Viewer as soon as possible.   
http://www.pcinfectionremovalguide.net/download-spyhunter