Suspicious apps in my apps section. (Facebook App Installer and Facebook App Manager)

I just noticed (Facebook App Installer and Facebook App Manager) in my all apps section under settings. I tried looking it up but can't find anything. It doesn't have the Facebook icon next to it but has the Android icon. Seems very suspecious to me. I looked on my girls phone and she doesn't have it. I was just wondering if anyone else has these two apps installed also. I'm currently running Android 6.0. Thank you



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