protected override void ScanForObfuscator() { methodsDecrypter = new MethodsDecrypter(module); methodsDecrypter.Find(); proxyCallFixer = new ProxyCallFixer(module, DeobfuscatedFile); proxyCallFixer.FindDelegateCreator(module); stringDecrypter = new StringDecrypter(module); stringDecrypter.Find(DeobfuscatedFile); booleanDecrypter = new BooleanDecrypter(module); booleanDecrypter.Find(); assemblyResolver = new AssemblyResolver(module); assemblyResolver.Find(DeobfuscatedFile); obfuscatorName = DetectVersion(); if (unpackedNativeFile) { obfuscatorName += " (native)"; } resourceResolver = new ResourceResolver(module); resourceResolver.Find(DeobfuscatedFile); }
public override void DeobfuscateBegin() { base.DeobfuscateBegin(); proxyCallFixer = new ProxyCallFixer(Module, DeobfuscatedFile); proxyCallFixer.FindDelegateCreator(); proxyCallFixer.Find(); stringDecrypter.Initialize(peImage, fileData, DeobfuscatedFile); if (!stringDecrypter.Detected) { FreePEImage(); } booleanDecrypter.Initialize(fileData, DeobfuscatedFile); booleanValueInliner = new BooleanValueInliner(); emptyClass = new EmptyClass(Module); if (options.DecryptBools) { booleanValueInliner.Add(booleanDecrypter.Method, (method, gim, args) => { return(booleanDecrypter.Decrypt((int)args[0])); }); } foreach (var info in stringDecrypter.DecrypterInfos) { staticStringInliner.Add(info.method, (method2, gim, args) => { return(stringDecrypter.Decrypt(method2, (int)args[0])); }); } if (stringDecrypter.OtherStringDecrypter != null) { staticStringInliner.Add(stringDecrypter.OtherStringDecrypter, (method2, gim, args) => { return(stringDecrypter.Decrypt((string)args[0])); }); } DeobfuscatedFile.StringDecryptersAdded(); metadataTokenObfuscator = new MetadataTokenObfuscator(Module); antiStrongname = new AntiStrongName(GetDecrypterType()); bool removeResourceResolver = false; if (options.DecryptResources) { resourceResolver.Initialize(DeobfuscatedFile, this); DecryptResources(); if (options.InlineMethods) { AddTypeToBeRemoved(resourceResolver.Type, "Resource decrypter type"); removeResourceResolver = true; } AddEntryPointCallToBeRemoved(resourceResolver.InitMethod); AddCctorInitCallToBeRemoved(resourceResolver.InitMethod); } if (resourceResolver.Detected && !removeResourceResolver && !resourceResolver.FoundResource) { canRemoveDecrypterType = false; // There may be calls to its .ctor } if (Operations.DecryptStrings != OpDecryptString.None) { AddResourceToBeRemoved(stringDecrypter.Resource, "Encrypted strings"); } else { canRemoveDecrypterType = false; } if (options.DecryptMethods && !methodsDecrypter.HasNativeMethods) { AddResourceToBeRemoved(methodsDecrypter.Resource, "Encrypted methods"); AddCctorInitCallToBeRemoved(methodsDecrypter.Method); } else { canRemoveDecrypterType = false; } if (options.DecryptBools) { AddResourceToBeRemoved(booleanDecrypter.Resource, "Encrypted booleans"); } else { canRemoveDecrypterType = false; } if (!options.RemoveAntiStrongName) { canRemoveDecrypterType = false; } // The inlined methods may contain calls to the decrypter class if (!options.InlineMethods) { canRemoveDecrypterType = false; } if (options.DumpEmbeddedAssemblies) { if (options.InlineMethods) { AddTypeToBeRemoved(assemblyResolver.Type, "Assembly resolver"); } AddEntryPointCallToBeRemoved(assemblyResolver.InitMethod); AddCctorInitCallToBeRemoved(assemblyResolver.InitMethod); DumpEmbeddedAssemblies(); } if (options.InlineMethods) { AddTypeToBeRemoved(metadataTokenObfuscator.Type, "Metadata token obfuscator"); } AddCctorInitCallToBeRemoved(emptyClass.Method); AddCtorInitCallToBeRemoved(emptyClass.Method); AddEntryPointCallToBeRemoved(emptyClass.Method); if (options.InlineMethods) { AddTypeToBeRemoved(emptyClass.Type, "Empty class"); } startedDeobfuscating = true; }
public override void DeobfuscateBegin() { base.DeobfuscateBegin(); proxyCallFixer = new ProxyCallFixer(module, DeobfuscatedFile); proxyCallFixer.FindDelegateCreator(); proxyCallFixer.Find(); stringDecrypter.Initialize(peImage, fileData, DeobfuscatedFile); if (!stringDecrypter.Detected) FreePEImage(); booleanDecrypter.Initialize(fileData, DeobfuscatedFile); booleanValueInliner = new BooleanValueInliner(); emptyClass = new EmptyClass(module); if (options.DecryptBools) { booleanValueInliner.Add(booleanDecrypter.Method, (method, gim, args) => { return booleanDecrypter.Decrypt((int)args[0]); }); } foreach (var info in stringDecrypter.DecrypterInfos) { staticStringInliner.Add(info.method, (method2, gim, args) => { return stringDecrypter.Decrypt(method2, (int)args[0]); }); } if (stringDecrypter.OtherStringDecrypter != null) { staticStringInliner.Add(stringDecrypter.OtherStringDecrypter, (method2, gim, args) => { return stringDecrypter.Decrypt((string)args[0]); }); } DeobfuscatedFile.StringDecryptersAdded(); metadataTokenObfuscator = new MetadataTokenObfuscator(module); antiStrongname = new AntiStrongName(GetDecrypterType()); bool removeResourceResolver = false; if (options.DecryptResources) { resourceResolver.Initialize(DeobfuscatedFile, this); DecryptResources(); if (options.InlineMethods) { AddTypeToBeRemoved(resourceResolver.Type, "Resource decrypter type"); removeResourceResolver = true; } AddEntryPointCallToBeRemoved(resourceResolver.InitMethod); AddCctorInitCallToBeRemoved(resourceResolver.InitMethod); } if (resourceResolver.Detected && !removeResourceResolver && !resourceResolver.FoundResource) canRemoveDecrypterType = false; // There may be calls to its .ctor if (Operations.DecryptStrings != OpDecryptString.None) AddResourceToBeRemoved(stringDecrypter.Resource, "Encrypted strings"); else canRemoveDecrypterType = false; if (options.DecryptMethods && !methodsDecrypter.HasNativeMethods) { AddResourceToBeRemoved(methodsDecrypter.Resource, "Encrypted methods"); AddCctorInitCallToBeRemoved(methodsDecrypter.Method); } else canRemoveDecrypterType = false; if (options.DecryptBools) AddResourceToBeRemoved(booleanDecrypter.Resource, "Encrypted booleans"); else canRemoveDecrypterType = false; if (!options.RemoveAntiStrongName) canRemoveDecrypterType = false; // The inlined methods may contain calls to the decrypter class if (!options.InlineMethods) canRemoveDecrypterType = false; if (options.DumpEmbeddedAssemblies) { if (options.InlineMethods) AddTypeToBeRemoved(assemblyResolver.Type, "Assembly resolver"); AddEntryPointCallToBeRemoved(assemblyResolver.InitMethod); AddCctorInitCallToBeRemoved(assemblyResolver.InitMethod); DumpEmbeddedAssemblies(); } if (options.InlineMethods) AddTypeToBeRemoved(metadataTokenObfuscator.Type, "Metadata token obfuscator"); AddCctorInitCallToBeRemoved(emptyClass.Method); AddCtorInitCallToBeRemoved(emptyClass.Method); AddEntryPointCallToBeRemoved(emptyClass.Method); if (options.InlineMethods) AddTypeToBeRemoved(emptyClass.Type, "Empty class"); startedDeobfuscating = true; }