Starting with the Dat 2013.08.20.02 and above, it started to detect Trojan.MSIL.Disfa on our enterprise auditing script / utility. The utility has been in use for months and last changed just over a month ago. Source system that builds the scripts has no other virus or malware issues. Attached .exe files (In Zip File)ToTest.zipToTest.zipToTest.zip are the two being detected and being removed by MalwareBytes. DAT 2013.08.20.01 and before did not detect this issue. What would be causing this - something in our script writing, or a problem with the MalwareBytes DATs?