35 lines
953 B
C#
35 lines
953 B
C#
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using dnlib.DotNet;
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using dnlib.DotNet.Emit;
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using Obfuscator.Helper;
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namespace Obfuscator.Obfuscator.Mutation2;
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public class Mul : iMutation
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{
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public void Prepare(TypeDef type)
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{
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}
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public void Process(MethodDef method, ref int index)
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{
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int ldcI4Value = method.Body.Instructions[index].GetLdcI4Value();
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int num = Methods.Random.Next(1, (int)((double)ldcI4Value / 1.5));
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int num2 = ldcI4Value / num;
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while (num * num2 != ldcI4Value)
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{
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num = Methods.Random.Next(1, (int)((double)ldcI4Value / 1.5));
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num2 = ldcI4Value / num;
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}
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method.Body.Instructions[index].OpCode = OpCodes.Ldc_I4;
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method.Body.Instructions[index].Operand = num2;
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method.Body.Instructions.Insert(++index, new Instruction(OpCodes.Ldc_I4, num));
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method.Body.Instructions.Insert(++index, new Instruction(OpCodes.Mul));
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index++;
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}
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public bool Supported(Instruction instr)
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{
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return Utils.CheckArithmetic(instr);
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}
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}
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