121 lines
3.4 KiB
C#
121 lines
3.4 KiB
C#
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/*
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Copyright (C) 2011-2012 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 System.Collections.Generic;
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using Mono.Cecil;
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using de4dot.blocks;
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namespace de4dot.code.deobfuscators.ILProtector {
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public class DeobfuscatorInfo : DeobfuscatorInfoBase {
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public const string THE_NAME = "ILProtector";
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public const string THE_TYPE = "il";
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public DeobfuscatorInfo()
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: base() {
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}
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public override string Name {
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get { return THE_NAME; }
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}
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public override string Type {
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get { return THE_TYPE; }
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}
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public override IDeobfuscator createDeobfuscator() {
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return new Deobfuscator(new Deobfuscator.Options {
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ValidNameRegex = validNameRegex.get(),
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});
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}
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protected override IEnumerable<Option> getOptionsInternal() {
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return new List<Option>() {
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};
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}
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}
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class Deobfuscator : DeobfuscatorBase {
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Options options;
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string obfuscatorName = DeobfuscatorInfo.THE_NAME;
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MainType mainType;
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MethodsDecrypter methodsDecrypter;
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internal class Options : OptionsBase {
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}
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public override string Type {
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get { return DeobfuscatorInfo.THE_TYPE; }
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}
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public override string TypeLong {
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get { return DeobfuscatorInfo.THE_NAME; }
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}
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public override string Name {
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get { return obfuscatorName; }
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}
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public Deobfuscator(Options options)
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: base(options) {
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this.options = options;
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}
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protected override int detectInternal() {
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return mainType.Detected ? 150 : 0;
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}
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protected override void scanForObfuscator() {
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mainType = new MainType(module);
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mainType.find();
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methodsDecrypter = new MethodsDecrypter(module, mainType);
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methodsDecrypter.find();
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if (mainType.Detected && methodsDecrypter.Detected && methodsDecrypter.Version != null)
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obfuscatorName += " " + getVersion(methodsDecrypter.Version);
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}
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static string getVersion(Version version) {
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if (version.Revision == 0)
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return string.Format("{0}.{1}.{2}", version.Major, version.Minor, version.Build);
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return version.ToString();
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}
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public override void deobfuscateBegin() {
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base.deobfuscateBegin();
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methodsDecrypter.decrypt();
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addTypesToBeRemoved(methodsDecrypter.DelegateTypes, "Obfuscator method delegate type");
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addResourceToBeRemoved(methodsDecrypter.Resource, "Encrypted methods resource");
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addTypeToBeRemoved(mainType.InvokerDelegate, "Invoker delegate type");
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addFieldToBeRemoved(mainType.InvokerInstanceField, "Invoker delegate instance field");
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foreach (var pm in mainType.ProtectMethods) {
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addMethodToBeRemoved(pm, "Obfuscator 'Protect' init method");
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addModuleReferenceToBeRemoved(pm.PInvokeInfo.Module, "Obfuscator native protection file");
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}
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mainType.cleanUp();
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}
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public override IEnumerable<int> getStringDecrypterMethods() {
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return new List<int>();
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}
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}
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}
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