86 lines
2.7 KiB
C#
86 lines
2.7 KiB
C#
/*
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Copyright (C) 2011-2015 de4dot@gmail.com
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This file is part of de4dot.
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de4dot is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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de4dot is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with de4dot. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using dnlib.DotNet;
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using de4dot.blocks;
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namespace de4dot.code.deobfuscators.dotNET_Reactor.v3 {
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// Finds the type that saves the native lib (if in resources) to disk
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class NativeLibSaver {
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ModuleDefMD module;
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TypeDef nativeLibCallerType;
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MethodDef initMethod;
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Resource nativeFileResource;
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public TypeDef Type {
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get { return nativeLibCallerType; }
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}
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public MethodDef InitMethod {
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get { return initMethod; }
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}
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public Resource Resource {
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get { return nativeFileResource; }
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}
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public bool Detected {
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get { return nativeLibCallerType != null; }
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}
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public NativeLibSaver(ModuleDefMD module) {
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this.module = module;
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}
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public NativeLibSaver(ModuleDefMD module, NativeLibSaver oldOne) {
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this.module = module;
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this.nativeLibCallerType = Lookup(oldOne.nativeLibCallerType, "Could not find nativeLibCallerType");
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this.initMethod = Lookup(oldOne.initMethod, "Could not find initMethod");
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if (oldOne.nativeFileResource != null) {
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this.nativeFileResource = DotNetUtils.GetResource(module, oldOne.nativeFileResource.Name.String);
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if (this.nativeFileResource == null)
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throw new ApplicationException("Could not find nativeFileResource");
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}
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}
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T Lookup<T>(T def, string errorMessage) where T : class, ICodedToken {
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return DeobUtils.Lookup(module, def, errorMessage);
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}
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public void Find() {
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foreach (var calledMethod in DotNetUtils.GetCalledMethods(module, DotNetUtils.GetModuleTypeCctor(module))) {
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if (!DotNetUtils.IsMethod(calledMethod, "System.Void", "()"))
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continue;
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if (calledMethod.DeclaringType.FullName != "<PrivateImplementationDetails>{F1C5056B-0AFC-4423-9B83-D13A26B48869}")
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continue;
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nativeLibCallerType = calledMethod.DeclaringType;
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initMethod = calledMethod;
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foreach (var s in DotNetUtils.GetCodeStrings(initMethod)) {
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nativeFileResource = DotNetUtils.GetResource(module, s);
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if (nativeFileResource != null)
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break;
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}
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return;
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}
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}
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}
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}
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