I am developing a metamorphic malware detection tool using functional graph analysis.. My program is not reading asm files and is producing unknown source error. I have tried exe files of various malwares which are producing nil values but the disassembled asm files are not known to the program.. Can anyone help me how to resolve this issue? I have my both files (exe and asm format on the same path) still there is an error. Have I used wrong samples or something else?