71 lines
2.3 KiB
C#
71 lines
2.3 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 dnlib.DotNet;
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using dnlib.DotNet.Emit;
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using de4dot.blocks;
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namespace de4dot.code.deobfuscators.SmartAssembly {
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class ResourceResolverInfo : ResolverInfoBase {
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EmbeddedAssemblyInfo resourceInfo;
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AssemblyResolverInfo assemblyResolverInfo;
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public EmbeddedAssemblyInfo ResourceInfo {
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get { return resourceInfo; }
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}
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public ResourceResolverInfo(ModuleDefMD module, ISimpleDeobfuscator simpleDeobfuscator, IDeobfuscator deob, AssemblyResolverInfo assemblyResolverInfo)
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: base(module, simpleDeobfuscator, deob) {
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this.assemblyResolverInfo = assemblyResolverInfo;
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}
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protected override bool CheckResolverType(TypeDef type) {
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return DotNetUtils.FindFieldType(type, "System.Reflection.Assembly", true) != null;
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}
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protected override bool CheckHandlerMethod(MethodDef method) {
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if (!method.IsStatic || !method.HasBody)
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return false;
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EmbeddedAssemblyInfo info = null;
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var instructions = method.Body.Instructions;
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for (int i = 0; i < instructions.Count; i++) {
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var instrs = DotNetUtils.GetInstructions(instructions, i, OpCodes.Ldstr, OpCodes.Call);
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if (instrs == null)
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continue;
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var s = instrs[0].Operand as string;
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var calledMethod = instrs[1].Operand as IMethod;
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if (s == null || calledMethod == null)
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continue;
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info = assemblyResolverInfo.Find(Utils.GetAssemblySimpleName(s));
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if (info != null)
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break;
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}
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if (info == null)
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return false;
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resourceInfo = info;
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Logger.v("Found embedded assemblies resource {0}", Utils.ToCsharpString(info.resourceName));
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return true;
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}
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}
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}
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