Very much like a false positive. Scanning a page file is pointless, it contains a lot of random junk which can cause this. There is a good reason why it is excluded by default in Avast for Windows.
I should add that a few days ago this same windows install had
Rootkit.TDSS, Broken.OpenCommand, Trojan.Hiloti and Trojan.FakeAV!gen42
reported and removed by malwarebytes and norton.