56 lines
1.5 KiB
C#
56 lines
1.5 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 System.Collections.Generic;
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namespace de4dot.blocks.cflow {
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public abstract class BlockDeobfuscator : IBlocksDeobfuscator {
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protected List<Block> allBlocks;
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protected Blocks blocks;
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public bool ExecuteIfNotModified { get; set; }
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public virtual void DeobfuscateBegin(Blocks blocks) {
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this.blocks = blocks;
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}
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public bool Deobfuscate(List<Block> allBlocks) {
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Initialize(allBlocks);
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bool modified = false;
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foreach (var block in allBlocks) {
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try {
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modified |= Deobfuscate(block);
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}
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catch (NullReferenceException) {
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// Here if eg. invalid metadata token in a call instruction (operand is null)
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}
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}
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return modified;
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}
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protected virtual void Initialize(List<Block> allBlocks) {
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this.allBlocks = allBlocks;
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}
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protected abstract bool Deobfuscate(Block block);
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}
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}
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