Deobfuscation Error

[ArdaKurucim]

java.lang.IndexOutOfBoundsException: Trying to set an inexistant local variable 0
        at org.objectweb.asm.tree.analysis.Frame.setLocal(Frame.java:178)
        at org.objectweb.asm.tree.analysis.Analyzer.computeInitialFrame(Analyzer.java:397)
        at org.objectweb.asm.tree.analysis.Analyzer.analyze(Analyzer.java:162)
        at com.javadeobfuscator.deobfuscator.rules.allatori.RuleStringDecryptor.test(RuleStringDecryptor.java:48)
        at com.javadeobfuscator.deobfuscator.Deobfuscator.start(Deobfuscator.java:336)
        at com.javadeobfuscator.deobfuscator.DeobfuscatorMain.run(DeobfuscatorMain.java:120)
        at com.javadeobfuscator.deobfuscator.DeobfuscatorMain.run(DeobfuscatorMain.java:92)
        at com.javadeobfuscator.deobfuscator.DeobfuscatorMain.main(DeobfuscatorMain.java:50)

My config file has:

input: launcher.jar
detect: true

[ArdaKurucim]

I have no idea which transformers should i use. I never coded java lol.

[ItzSomebody]

Reference:

deobfuscator/src/main/java/com/javadeobfuscator/deobfuscator/rules/allatori/RuleStringDecryptor.java

Lines 45 to 52 in 0147c7d

	Frame<SourceValue>[] frames;
	try
	{
	frames = new Analyzer<>(new SourceInterpreter()).analyze(classNode.name, methodNode);
	}catch(AnalyzerException e)
	{
	continue;
	}

I have found asm's analyzers (which is what the rule uses to try to detect Allatori's string encryption) to not work well sometimes with certain flow obfuscation edge cases. This is an issue where I would shift the blame more on asm, but perhaps this also motivates the idea of removing reliance on asm's analyzers.

Regarding what to use, check #653 before uploading whatever it is you are trying to work with. If it's something that cannot be posted publicly, then you can try emailing me at [email protected].