AVG sees virus in newly downloaded setup

[dmonfre]

I'm trying to recover data that had been corrupted by the mabidwe virus. Basically I recovered a now raw drive to an external drive and then had mbam and AVG attacking the corrupted .exe files so I could retrieve artwork and other files.

Last night AVG started recognizing mbam as a trojan horse (psw.banker5.ZOY). I was initially worried that I had become reinfected but I did some searching and found that this started happening today to other people.

Now AVG is telling me that RecoverMyFiles.exe has the same trojan. I removed it and then restarted and downloaded a fresh setup file but it says it is corrupted. Any ideas? Is this just a false positive?