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Support Confuser 1.7 r74021 constants encrypter (dynamic mode)

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This commit is contained in:
de4dot 2012-08-10 17:00:55 +02:00
parent d7eb818203
commit 731d7bcb73
1 changed files with 14 additions and 6 deletions
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20
de4dot.code/deobfuscators/Confuser/ConstantsDecrypterBase.cs
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@ -331,19 +331,27 @@ namespace de4dot.code.deobfuscators.Confuser {
static int getDynamicEndIndex_v17_r73740(MethodDefinition method, VariableDefinition local) {
var instrs = method.Body.Instructions;
for (int i = 0; i < instrs.Count - 5; i++) {
var stloc = instrs[i];
int index = i;
var stloc = instrs[index++];
if (!DotNetUtils.isStloc(stloc) || DotNetUtils.getLocalVar(method.Body.Variables, stloc) != local)
continue;
if (!DotNetUtils.isLdloc(instrs[i + 1]))
if (!DotNetUtils.isLdloc(instrs[index++]))
continue;
if (!DotNetUtils.isLdloc(instrs[i + 2]))
if (instrs[index].OpCode.Code == Code.Call) {
if (i + 7 >= instrs.Count)
continue;
index++;
if (!DotNetUtils.isLdloc(instrs[index++]))
continue;
}
if (!DotNetUtils.isLdloc(instrs[index++]))
continue;
var ldloc = instrs[i + 3];
var ldloc = instrs[index++];
if (!DotNetUtils.isLdloc(ldloc) || DotNetUtils.getLocalVar(method.Body.Variables, ldloc) != local)
continue;
if (instrs[i + 4].OpCode.Code != Code.Conv_U1)
if (instrs[index++].OpCode.Code != Code.Conv_U1)
continue;
if (instrs[i + 5].OpCode.Code != Code.Stelem_I1)
if (instrs[index++].OpCode.Code != Code.Stelem_I1)
continue;
return i;