Is the System UI update a virus ?

[AC Question]

I got a notice on my Android phone (LG L33L via TracFone) that my System UI app required an update. But after reading previous Android and Google forum posts I've come to believe that its a virus/malware. I deleted the app. But other posts day that System UI is necessary for the operation of the phone. I'm totally confused. Could someone please clarify?
M.B.

 

[belodion]

Yes, the LG phone that I'm using right now has a System UI app, for Lollipop. There is only the option to Force Stop it however, so I don't see how you uninstalled yours. Are you sure that you did, rather than just rejecting the update?

 

[Tim1954]

Rule of thumb, if a popup appears and wants you to do things, ignore it, go to settings and check there for any updates.