void deobfuscate(MethodDef method, BlocksCflowDeobfuscator cflowDeobfuscator, MethodPrinter methodPrinter, bool isVerbose, bool isVV)
{
if (!hasNonEmptyBody(method))
{
return;
}
var blocks = new Blocks(method);
int numRemovedLocals = 0;
int oldNumInstructions = method.Body.Instructions.Count;
deob.deobfuscateMethodBegin(blocks);
if (options.ControlFlowDeobfuscation)
{
cflowDeobfuscator.init(blocks);
cflowDeobfuscator.deobfuscate();
}
if (deob.deobfuscateOther(blocks) && options.ControlFlowDeobfuscation)
{
cflowDeobfuscator.deobfuscate();
}
if (options.ControlFlowDeobfuscation)
{
if (CanOptimizeLocals())
{
numRemovedLocals = blocks.optimizeLocals();
}
blocks.repartitionBlocks();
}
deobfuscateStrings(blocks);
deob.deobfuscateMethodEnd(blocks);
IList <Instruction> allInstructions;
IList <ExceptionHandler> allExceptionHandlers;
blocks.getCode(out allInstructions, out allExceptionHandlers);
DotNetUtils.restoreBody(method, allInstructions, allExceptionHandlers);
if (isVerbose && numRemovedLocals > 0)
{
Logger.v("Removed {0} unused local(s)", numRemovedLocals);
}
int numRemovedInstructions = oldNumInstructions - method.Body.Instructions.Count;
if (isVerbose && numRemovedInstructions > 0)
{
Logger.v("Removed {0} dead instruction(s)", numRemovedInstructions);
}
if (isVV)
{
Logger.log(LoggerEvent.VeryVerbose, "Deobfuscated code:");
Logger.Instance.indent();
methodPrinter.print(LoggerEvent.VeryVerbose, allInstructions, allExceptionHandlers);
Logger.Instance.deIndent();
}
}
void deobfuscate(MethodDefinition method, BlocksCflowDeobfuscator cflowDeobfuscator, MethodPrinter methodPrinter)
{
if (!hasNonEmptyBody(method))
{
return;
}
var blocks = new Blocks(method);
int numRemovedLocals = 0;
int oldNumInstructions = method.Body.Instructions.Count;
deob.deobfuscateMethodBegin(blocks);
if (options.ControlFlowDeobfuscation)
{
cflowDeobfuscator.init(blocks);
cflowDeobfuscator.deobfuscate();
}
if (deob.deobfuscateOther(blocks) && options.ControlFlowDeobfuscation)
{
cflowDeobfuscator.deobfuscate();
}
if (options.ControlFlowDeobfuscation)
{
numRemovedLocals = blocks.optimizeLocals();
blocks.repartitionBlocks();
}
deobfuscateStrings(blocks);
deob.deobfuscateMethodEnd(blocks);
IList <Instruction> allInstructions;
IList <ExceptionHandler> allExceptionHandlers;
blocks.getCode(out allInstructions, out allExceptionHandlers);
DotNetUtils.restoreBody(method, allInstructions, allExceptionHandlers);
if (numRemovedLocals > 0)
{
Log.v("Removed {0} unused local(s)", numRemovedLocals);
}
int numRemovedInstructions = oldNumInstructions - method.Body.Instructions.Count;
if (numRemovedInstructions > 0)
{
Log.v("Removed {0} dead instruction(s)", numRemovedInstructions);
}
const Log.LogLevel dumpLogLevel = Log.LogLevel.veryverbose;
if (Log.isAtLeast(dumpLogLevel))
{
Log.log(dumpLogLevel, "Deobfuscated code:");
Log.indent();
methodPrinter.print(dumpLogLevel, allInstructions, allExceptionHandlers);
Log.deIndent();
}
}
void ISimpleDeobfuscator.deobfuscate(MethodDef method, bool force)
{
if (!force && check(method, SimpleDeobFlags.HasDeobfuscated))
{
return;
}
deobfuscate(method, "Deobfuscating control flow", (blocks) => {
var cflowDeobfuscator = new BlocksCflowDeobfuscator(deob.BlocksDeobfuscators);
cflowDeobfuscator.init(blocks);
cflowDeobfuscator.deobfuscate();
});
}
void ISimpleDeobfuscator.deobfuscate(MethodDefinition method)
{
if (check(method, SimpleDeobFlags.HasDeobfuscated))
{
return;
}
deobfuscate(method, "Deobfuscating control flow", (blocks) => {
var cflowDeobfuscator = new BlocksCflowDeobfuscator {
MethodCallInliner = deob.MethodCallInliner
};
cflowDeobfuscator.init(blocks);
cflowDeobfuscator.deobfuscate();
});
}
