Whether you knew Process Mockingjay since ever or you just got to know it, this tool helps you to find DLLs with RWX section. This is done parsing the PE Section Headers and checking the "Characteristics" attribute of each section.
It's not a great code, just copy pasta of an old project I had written for learning about PE structure.
Pretty straightforward:
C:\>JayFinder.exe C:\StartingFolder
Then you can expect an output similar to this one