Unsupported opcode: JUMP_IF_NOT_EXC_MATCH

[NiKoCZ89]

Unsupported opcode: JUMP_IF_NOT_EXC_MATCH

any fix/update?

[abros1]

Same issue with me

[karjok]

I also had a similar error last night, when I tried to decompile the pyc file compiled with python 3.10, the message "Unsupported opcode: BLA_BLA_BLA" appears.

I think this is an error because the pyc file that will be decoded is a bytecode file compiled with python 3.9 and above, and the opcodes that are not supported by pycdc are opcodes that just appeared in python version 3.9 and above.

so I tried reading the ASTree.cpp file and studying it, then I realized that the opcode that was printed as an error was not in the "case block" of the ASTree.cpp file.

I tried to change it a little by adding the opcodes printed in the error message into the case block (on line 1166)

case Pyc::JUMP_IF_NOT_EXC_MATCH_A:
case Pyc::RERAISE_A:

then rebuild it. I don't know what happened but it solved my problem when trying to decompile python 3.9 and above bytecode. everything is done!

[angelheart150]

i have the same error , how can i solve it ?

[AngeloD2022]

obfuscated_stealer.pyc.zip

I am trying to analyze malware, and I received this error when putting the above file into pycdc.

[sami-soft]

Same issue with me

[fernando535]

Same issue... how can i resolved it?

[kzorin52]

same

[meir555]

Temporary fix:
I tried to comment out the line return new ASTNodeList(defblock->nodes()); in ASTree.cpp (this is the line that stops when it reaches an unknown opcode, in the default:)
The output is not completely correct, I had places where the try-catch was not in place, but all the decompiled code is readable, and after minor corrections it worked perfectly.

[zrax]

Duplicate #450