Suspicious looking folder found in C:

Jul 2, 2018
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In the C: directory on my pc i found 3 folers: "0d3a5576777f6191d0781897924c" "3ba16a959c84eae44fc52ebe" and "933218b9005bdbb636748cb1". They all contain an install.exe file in them. Are they a virus? My antivirus does not not register them as a virus and I even tried hitman.