Update on my situation if anyone has a problem. I couldn't find any specific instructions relating to a mac so I went it on my own. First, TROVI is not a virus but may be an adware and is something known as a Browser Hijacker. It hijacks your browser settings and MAY take your search information and save it and send it to third parties who can use it to direct ads to you or even steal information.
I found where I got it. I downloaded a program from the internet. As I learned from a mac service professional, you need to be very careful with downloading software from the internet. Especially FreeWare. Make Sure you are downloading directly from the developers site and not a third party "Bundler". The program I downloaded was FLVTO which downloads videos from Youtube. It is, I understand, a legitimate program but I may have downloaded it from a site that BUNDLES software and promotes and distributes it along with other FreeWare Programs and Adware.
In my case, as I downloaded FLVTO, the menu that guided me had dialogue boxes that asked my permissions for certain things. In a hurry, I just assumed that they were legitimate things till I noticed, during a re-install of the program that there was one asking to download TROVI. It also had one for Yahoo and one for Some Cloud Service as well as a couple others. By clicking YES to the boxes, I was giving TROVI and other programs permission to change my registrations and preferences in ALL MY BROWSERS, to become my preferred browser or to install on my computer. After noticing TROVI and declining it, I noticed Yahoo and it slipped past me as I thought it was legit, as Yahoo is. However, Surprise, Now YAHOO was my default browser on my Safari and Google Chrome. I also learned that TROVI had installed other adware programs onto my system. Not only did my browser change but I also noticed that AD popups would come up every time I rebooted my computer.
First, I went into FINDER and did a search for TROVI and deleted all related files. Then, I found some for the cloud serivice and deleted those, I deleted the FLVTO files as well. There were a couple other ads that came up and I deleted files for those as well. While researching, things came up relating to developer names etc. I kept note of all the associated names that came up while I was researching and ran those through FINDER to find that many also had files saved on my computer. Of course, I deleted all those. Safari was easy to change the preferences and registrations so I left that. However, Google was more difficult and I was not able to, immediately remove TROVI. So, I also removed GOOGLE from my computer. I found that even though I uninstalled Google Chrome 2 times, things came back every time I re-installed it. I found that I also had to remove and delete the GOOGLE file under Library Application Support. Now, after re-installing Google Chrome, it seemed clean.
Lastly, so far, after talking to my Mac Service Professional, he said that I may want to remove everything from my computer and re-install the OS and everything. Stating that these programs can hide things all over your computer in places where you may not ever find them. Even through a normal FINDER Search. He then recommended Adware Medic but stated again that the only way to be sure the adware is all gone is to scrub the entire OS etc., I ran AdwareMedic and was stunned to find a whole page and a half of other files. Most if not all were related to those programs that I had originally searched for ad thought I had removed. Right now, I am not noticing any issues and think I have my system clean. I don't know though, for sure.
My next step is to work toward making a list of all the stuff that I have on my computer. Save all my data files and photos etc.... Then, I guess, reinstall everything. My advice from the Service Guy is to then put the OS on a jump drive and keep that, in case I ever have a problem again. Then, after I have everything re-installed and setup the way I need it, Before I do anything else, he suggested making a clone of my Hard Drive using Carbon Copy Cloner and keep that in a safe place, in case this ever happens again. He also reminded me the importance of Time Machine and keeping backups of data. All stuff that I now need to work on .
NOTE: I originally posted that iCloud was pushed through the download which it was NOT. I don't recall the name of the cloud service that tried to install.