hello,
i m here to inform you that avast reported a virus in your virus definition ...

https://postimg.org/image/omvxr81lj/

Regards

It looks like a false positive. You should submit this to Avast team so they can fix it.

Another good idea would be to exclude ClamWin directory from Avast and exclude Avast directory from ClamWin so they don't cause issues with each other.

ClamWin is a good secondary scanner. You might also want to try Clam Sentinel along with ClamWin which adds heuristics to ClamWin scanner.

Avast probably has the same sigjnatiure for this virus that Clam Av has. You should exclude the clam av temp files (clamtmp extension), database, and quarantine folders from Avast. That should prevent this problem in the future.

Regards,