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Detect Confuser 1.8 r75291 methods encrypter (JIT)

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This commit is contained in:
de4dot 2012-08-10 03:46:14 +02:00
parent 29448fe3cb
commit 754c5a1400
1 changed files with 15 additions and 2 deletions
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17
de4dot.code/deobfuscators/Confuser/JitMethodsDecrypter.cs
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@ -44,6 +44,7 @@ namespace de4dot.code.deobfuscators.Confuser {
v17_r74021,
v18_r75257,
v18_r75288,
v18_r75291,
v18_r75402,
}
@ -97,8 +98,12 @@ namespace de4dot.code.deobfuscators.Confuser {
break;
case 39:
if (!DotNetUtils.callsMethod(initMethod, "System.Void System.Console::WriteLine(System.Char)"))
theVersion = ConfuserVersion.v17_r74021;
if (!DotNetUtils.callsMethod(initMethod, "System.Void System.Console::WriteLine(System.Char)")) {
if (DotNetUtils.callsMethod(decryptMethod, "System.Security.Cryptography.Rijndael System.Security.Cryptography.Rijndael::Create()"))
theVersion = ConfuserVersion.v17_r74021;
else
theVersion = ConfuserVersion.v18_r75291;
}
else if (DotNetUtils.callsMethod(decryptMethod, "System.Security.Cryptography.Rijndael System.Security.Cryptography.Rijndael::Create()"))
theVersion = ConfuserVersion.v18_r75257;
else
@ -194,6 +199,7 @@ namespace de4dot.code.deobfuscators.Confuser {
case ConfuserVersion.v17_r74021: return initializeKeys_v17_r73404();
case ConfuserVersion.v18_r75257: return initializeKeys_v17_r73404();
case ConfuserVersion.v18_r75288: return initializeKeys_v17_r73404();
case ConfuserVersion.v18_r75291: return initializeKeys_v17_r73404();
case ConfuserVersion.v18_r75402: return initializeKeys_v18_r75402();
default: throw new ApplicationException("Invalid version");
}
@ -299,6 +305,7 @@ namespace de4dot.code.deobfuscators.Confuser {
case ConfuserVersion.v17_r74021: return initializeMethodDataIndexes_v17_r73477(compileMethod);
case ConfuserVersion.v18_r75257: return initializeMethodDataIndexes_v17_r73477(compileMethod);
case ConfuserVersion.v18_r75288: return initializeMethodDataIndexes_v17_r73477(compileMethod);
case ConfuserVersion.v18_r75291: return initializeMethodDataIndexes_v17_r73477(compileMethod);
case ConfuserVersion.v18_r75402: return initializeMethodDataIndexes_v17_r73477(compileMethod);
default: throw new ApplicationException("Invalid version");
}
@ -443,6 +450,7 @@ namespace de4dot.code.deobfuscators.Confuser {
case ConfuserVersion.v17_r74021: return decrypt_v17_r73479(peImage, fileData, ref dumpedMethods);
case ConfuserVersion.v18_r75257: return decrypt_v17_r73479(peImage, fileData, ref dumpedMethods);
case ConfuserVersion.v18_r75288: return decrypt_v17_r73479(peImage, fileData, ref dumpedMethods);
case ConfuserVersion.v18_r75291: return decrypt_v17_r73479(peImage, fileData, ref dumpedMethods);
case ConfuserVersion.v18_r75402: return decrypt_v18_r75402(peImage, fileData, ref dumpedMethods);
default: throw new ApplicationException("Unknown version");
}
@ -758,6 +766,11 @@ namespace de4dot.code.deobfuscators.Confuser {
case ConfuserVersion.v18_r75288:
minRev = 75288;
maxRev = 75288;
return true;
case ConfuserVersion.v18_r75291:
minRev = 75291;
maxRev = 75369;
return true;