Avast keeps detecting and flagging Iobit Malware Fighter 2.0 malware signatures

Avast keeps detecting Iobit Malware Fighter malware definition signatures. I scanned with other products and did a boot scan to confirm that it was just the signatures (definition files), and Eset, MBAM, Stinger, IMF, SAS did not find any virus or other malware. I added IMF to exclusions as well as imf.exe, but it keeps detecting and flagging it. It takes no action on it, but it makes it harder to see other things that may be there. How do I get Avast to stop doing this. It was not flagging IMF in version 1.7. It only started in IMF version 2.0.

Hello,
post the screenshot of avast!'s alert window, please.

Milos