I know there is always diligence that needs to be addressed when looking at these reports and there will inevitably be false positives. At the top of the report is a file that is in Admin Tools and I decided to do some research on it.
The file in question is:
administrator/components/com_admintools/akeeba/platform/jfscan/engines/archiver/jfscan.php
I took this file from the suspicious site and compared it to one that it was not reported from another site and as far as I could tell there is nothing different between the two.
So is it fair to question if this tool is working properly? Or could there be variables that would be causing the report to go completely off the wall as it appears it has on this site?
I have added the file I tested that is being reported as infected for you to have a look at. I changed it to a txt file...