Support Confuser 1.8 r75367 resource encrypter
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@ -40,6 +40,7 @@ namespace de4dot.code.deobfuscators.Confuser {
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v14_r55802,
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v17_r73404,
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v17_r73822,
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v18_r75367,
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vXX,
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}
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@ -100,6 +101,8 @@ namespace de4dot.code.deobfuscators.Confuser {
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if (findKey0_v17_r73404(tmpHandler, out key0) && findKey1_v17_r73404(tmpHandler, out key1))
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tmpVersion = ConfuserVersion.v17_r73822;
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else if (findKey0_v18_r75367(tmpHandler, out key0) && findKey1_v17_r73404(tmpHandler, out key1))
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tmpVersion = ConfuserVersion.v18_r75367;
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else if (findKey0_vXX(tmpHandler, out key0) && findKey1_vXX(tmpHandler, out key1))
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tmpVersion = ConfuserVersion.vXX;
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else
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@ -173,6 +176,31 @@ namespace de4dot.code.deobfuscators.Confuser {
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return DotNetUtils.getResource(module, DotNetUtils.getCodeStrings(method)) as EmbeddedResource;
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}
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static bool findKey0_v18_r75367(MethodDefinition method, out byte key0) {
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var instrs = method.Body.Instructions;
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for (int i = 0; i < instrs.Count; i++) {
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i = ConfuserUtils.findCallMethod(instrs, i, Code.Callvirt, "System.Int32 System.IO.Stream::Read(System.Byte[],System.Int32,System.Int32)");
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if (i < 0)
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break;
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if (i + 3 >= instrs.Count)
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break;
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if (instrs[i + 1].OpCode.Code != Code.Pop)
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continue;
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var ldci4 = instrs[i + 2];
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if (!DotNetUtils.isLdcI4(ldci4))
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continue;
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if (!DotNetUtils.isStloc(instrs[i + 3]))
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continue;
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key0 = (byte)DotNetUtils.getLdcI4Value(ldci4);
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return true;
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}
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key0 = 0;
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return false;
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}
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static bool findKey0_vXX(MethodDefinition method, out byte key0) {
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var instrs = method.Body.Instructions;
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for (int index = 0; index < instrs.Count; index++) {
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@ -313,7 +341,8 @@ namespace de4dot.code.deobfuscators.Confuser {
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case ConfuserVersion.v14_r55802: return decrypt_v14_r55802();
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case ConfuserVersion.v17_r73404: return decrypt_v17_r73404();
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case ConfuserVersion.v17_r73822: return decrypt_v17_r73404();
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case ConfuserVersion.vXX: return decrypt_vXX();
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case ConfuserVersion.v18_r75367: return decrypt_v18_r75367();
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case ConfuserVersion.vXX: return decrypt_v18_r75367();
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default: throw new ApplicationException("Unknown version");
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}
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}
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@ -341,7 +370,7 @@ namespace de4dot.code.deobfuscators.Confuser {
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return decrypted;
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}
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byte[] decrypt_vXX() {
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byte[] decrypt_v18_r75367() {
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var encrypted = resource.GetResourceData();
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byte k = key0;
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for (int i = 0; i < encrypted.Length; i++) {
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