| public FillPageQueue ( bool OnlyLarge = false ) : int | ||
| OnlyLarge | bool | |
| return | int | |
/// <summary>
/// Currently we scan hard for only kernel regions (2MB pages + ExEC)
/// If there are kernel modules named the OnlyModule it may cause us to ignore the real one in that case
/// you can still scan for * by passing null or empty string
/// </summary>
/// <param name="OnlyModule">Stop when the first module named this is found</param>
public VirtualScanner ScanAndLoadModules(string OnlyModule = "ntkrnlmp.pdb", bool OnlyLarge = true, bool IncludeKernelSpace = true, bool OnlyValid = true, bool IncludeData = false, bool DoExtraHeaderScan = true)
{
const int LARGE_PAGE_SIZE = 1024 * 1024 * 2;
var curr = 0;
PageTable.AddProcess(this, new Mem(MemAccess));
//var cnt = PT.FillPageQueue(OnlyLarge, IncludeKernelSpace);
var KVS = new VirtualScanner(this, new Mem(MemAccess), DoExtraHeaderScan);
// single threaded worked best so far
//Parallel.For(0, cnt, (i, loopState) => x
foreach (var range in PT.FillPageQueue(OnlyLarge, IncludeKernelSpace, OnlyValid, IncludeData))
//for (int i = 0; i < cnt; i++)
{
curr++;
bool stop = false;
if (Vtero.VerboseLevel > 1)
{
//var curr = cnt - PT.PageQueue.Count;
//var done = Convert.ToDouble(curr) / Convert.ToDouble(cnt) * 100.0;
Console.CursorLeft = 0;
Console.Write($"{curr} scanned");
}
if (range.PTE.Valid && !range.PTE.NoExecute)
{
foreach (var artifact in KVS.Run(range.VA.Address, range.VA.Address + (range.PTE.LargePage ? LARGE_PAGE_SIZE : MagicNumbers.PAGE_SIZE), range))
{
var ms = new MemSection()
{
IsExec = true, Module = artifact, VA = new VIRTUAL_ADDRESS(artifact.VA), Source = range
};
var extracted = ExtractCVDebug(ms);
if (extracted == null)
{
if (Vtero.VerboseLevel > 1)
{
WriteColor(ConsoleColor.Yellow, $"failed debug info for PE @address {range.VA.Address:X}, extracted headers: {artifact}");
}
continue;
}
if (!string.IsNullOrWhiteSpace(OnlyModule) && OnlyModule != ms.Name)
{
continue;
}
if (!Sections.ContainsKey(artifact.VA))
{
Sections.TryAdd(artifact.VA, ms);
}
// we can clobber this guy all the time I guess since everything is stateless in Sym and managed
// entirely by the handle ID really which is local to our GUID so....
sym = Vtero.TryLoadSymbols(ID.GetHashCode(), ms.DebugDetails, ms.VA.Address);
if (Vtero.VerboseOutput)
{
WriteColor((sym != null) ? ConsoleColor.Green : ConsoleColor.Yellow, $" symbol loaded = [{sym != null}] PDB [{ms.DebugDetails.PDBFullPath}] @ {range.VA.Address:X}, {ms.Name}");
if (Vtero.VerboseLevel > 1)
{
WriteColor((sym != null) ? ConsoleColor.Green : ConsoleColor.Yellow, $"headers: { artifact} ");
}
}
if (!string.IsNullOrWhiteSpace(OnlyModule))
{
if (!string.IsNullOrWhiteSpace(ms.Name) && ms.Name == OnlyModule)
{
stop = true;
//loopState.Stop();
break;
}
}
//if (loopState.IsStopped)
//return;
if (stop)
{
break;
}
}
}
//if (loopState.IsStopped)
// return;e
//});
if (stop)
{
break;
}
}
return(KVS);
}
/// <summary>
/// Currently we scan hard for only kernel regions (2MB pages + ExEC)
/// If there are kernel modules named the OnlyModule it may cause us to ignore the real one in that case
/// you can still scan for * by passing null or empty string
/// </summary>
/// <param name="OnlyModule">Stop when the first module named this is found</param>
public VirtualScanner ScanAndLoadModules(string OnlyModule = "ntkrnlmp")
{
PageTable.AddProcess(this, new Mem(MemAccess));
var cnt = PT.FillPageQueue(true);
var KVS = new VirtualScanner(this, new Mem(MemAccess));
KVS.ScanMode = VAScanType.PE_FAST;
Parallel.For(0, cnt, (i, loopState) =>
{
PFN range;
var curr = cnt - PT.PageQueue.Count;
var done = (int)(Convert.ToDouble(curr) / Convert.ToDouble(cnt) * 100.0) + 0.5;
if (PT.PageQueue.TryDequeue(out range) && range.PTE.Valid)
{
var found = KVS.Run(range.VA.Address, range.VA.Address + (range.PTE.LargePage ? (1024 * 1024 * 2) : 0x1000), loopState);
// Attempt load
foreach (var artifact in found)
{
var ms = new MemSection()
{
IsExec = true, Module = artifact.Value, VA = new VIRTUAL_ADDRESS(artifact.Key)
};
var extracted = ExtractCVDebug(ms);
if (extracted == null)
{
continue;
}
if (!string.IsNullOrWhiteSpace(OnlyModule) && OnlyModule != ms.Name)
{
continue;
}
if (!Sections.ContainsKey(artifact.Key))
{
Sections.TryAdd(artifact.Key, ms);
}
// we can clobber this guy all the time I guess since everything is stateless in Sym and managed
// entirely by the handle ID really which is local to our GUID so....
sym = Vtero.TryLoadSymbols(ID.GetHashCode(), ms.DebugDetails, ms.VA.Address);
if (Vtero.VerboseOutput)
{
WriteColor(ConsoleColor.Green, $"symbol loaded [{sym != null}] from file [{ms.DebugDetails.PDBFullPath}]");
}
if (!string.IsNullOrWhiteSpace(OnlyModule))
{
if (!string.IsNullOrWhiteSpace(ms.Name) && ms.Name == OnlyModule)
{
loopState.Stop();
return;
}
}
if (loopState.IsStopped)
{
return;
}
}
}
if (loopState.IsStopped)
{
return;
}
});
return(KVS);
}
