![]() ![]() If it's detected as an unknown (unsupported) obfuscator (or if you force it with -p un), all tokens are preserved, including the #US heap and any extra data at the end of signatures. preserve-tokens preserves all important tokens but will also enable -preserve-us, -preserve-blob and -preserve-sig-data. Confuser is one obfuscator that does this. preserve-sig-data should be used if the obfuscator adds extra data at the end of signatures that it uses for its own purpose, eg. Of these three, -preserve-us is the most useful one since ldstr instruction and module.ResolveString() directly reference the #US heap. The #Strings, #US and #Blob heaps can also be preserved by using -preserve-strings, -preserve-us, and -preserve-blob respectively. Peverify has a bug and doesn't support it (you'll see lots of "errors"). That way the ParamPtr table won't be added to your assemblies. If used, the renamer won't create Param rows for method parameters that don't have a Param row. Another useful option is -dont-create-params. Also consider using -keep-types since it won't remove any types and methods added by the obfuscator. Sometimes in rare cases, you'd want to preserve the metadata tokens. The following command line will deobfuscate all assemblies that have been obfuscated by a supported obfuscator and save the assemblies to c:\output Find all obfuscated files and deobfuscate them If you deobfuscate both assemblies at the same time, all references will also be updated. Class0 but the reference in assembly A still references a class called C in assembly B. The reason is that if assembly A has a reference to class C in assembly B, and you rename symbols only in assembly B, then class C could be renamed to eg. When more than one assembly has been obfuscated, it's very likely that you must deobfuscate them all at the same time unless you disable symbol renaming. How to use de4dot N00b usersĭrag and drop the file(s) onto de4dot.exe and wait a few seconds. Use a safe sandbox environment if you suspect the assembly or assemblies to be malware.Įven if the current version of de4dot doesn't load a certain assembly into memory for execution, a future version might. Sometimes the obfuscated assembly and all its dependencies are loaded into memory for execution. Help me out by reporting bugs or problems you find. Goliath.NET), so they have had much less testing. ![]() Some of the above obfuscators are rarely used (eg.
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