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Detect Confuser 1.8 r75288 methods encrypter (JIT)

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This commit is contained in:
de4dot 2012-08-10 03:39:37 +02:00
parent 2f19f876f7
commit 29448fe3cb
1 changed files with 16 additions and 4 deletions
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20
de4dot.code/deobfuscators/Confuser/JitMethodsDecrypter.cs
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@ -43,6 +43,7 @@ namespace de4dot.code.deobfuscators.Confuser {
v17_r73479,
v17_r74021,
v18_r75257,
v18_r75288,
v18_r75402,
}
@ -72,6 +73,10 @@ namespace de4dot.code.deobfuscators.Confuser {
if (compileMethod == null)
return false;
decryptMethod = findDecryptMethod(type);
if (decryptMethod == null)
return false;
var theVersion = ConfuserVersion.Unknown;
switch (type.NestedTypes.Count) {
case 35:
@ -94,8 +99,10 @@ namespace de4dot.code.deobfuscators.Confuser {
case 39:
if (!DotNetUtils.callsMethod(initMethod, "System.Void System.Console::WriteLine(System.Char)"))
theVersion = ConfuserVersion.v17_r74021;
else
else if (DotNetUtils.callsMethod(decryptMethod, "System.Security.Cryptography.Rijndael System.Security.Cryptography.Rijndael::Create()"))
theVersion = ConfuserVersion.v18_r75257;
else
theVersion = ConfuserVersion.v18_r75288;
break;
case 27: theVersion = ConfuserVersion.v18_r75402; break;
@ -107,9 +114,6 @@ namespace de4dot.code.deobfuscators.Confuser {
if (hookConstructStr == null)
return false;
}
decryptMethod = findDecryptMethod(type);
if (decryptMethod == null)
return false;
version = theVersion;
return true;
@ -189,6 +193,7 @@ namespace de4dot.code.deobfuscators.Confuser {
case ConfuserVersion.v17_r73479: return initializeKeys_v17_r73404();
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_r75402: return initializeKeys_v18_r75402();
default: throw new ApplicationException("Invalid version");
}
@ -293,6 +298,7 @@ namespace de4dot.code.deobfuscators.Confuser {
case ConfuserVersion.v17_r73479: return initializeMethodDataIndexes_v17_r73477(compileMethod);
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_r75402: return initializeMethodDataIndexes_v17_r73477(compileMethod);
default: throw new ApplicationException("Invalid version");
}
@ -436,6 +442,7 @@ namespace de4dot.code.deobfuscators.Confuser {
case ConfuserVersion.v17_r73479: return decrypt_v17_r73479(peImage, fileData, ref dumpedMethods);
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_r75402: return decrypt_v18_r75402(peImage, fileData, ref dumpedMethods);
default: throw new ApplicationException("Unknown version");
}
@ -746,6 +753,11 @@ namespace de4dot.code.deobfuscators.Confuser {
case ConfuserVersion.v18_r75257:
minRev = 75257;
maxRev = 75267;
return true;
case ConfuserVersion.v18_r75288:
minRev = 75288;
maxRev = 75369;
return true;