protected override void Execute(ConfuserContext context, ProtectionParameters parameters)
{
var field = context.CurrentModule.Types[0].FindField("DataField");
Debug.Assert(field != null);
context.Registry.GetService <INameService>().SetCanRename(field, true);
context.CurrentModuleWriterListener.OnWriterEvent += (sender, e) => {
if (e.WriterEvent == ModuleWriterEvent.MDBeginCreateTables)
{
// Add key signature
var writer = (ModuleWriterBase)sender;
var prot = (StubProtection)Parent;
uint blob = writer.MetaData.BlobHeap.Add(prot.ctx.KeySig);
uint rid = writer.MetaData.TablesHeap.StandAloneSigTable.Add(new RawStandAloneSigRow(blob));
Debug.Assert((0x11000000 | rid) == prot.ctx.KeyToken);
if (prot.ctx.CompatMode)
{
return;
}
// Add File reference
byte[] hash = SHA1.Create().ComputeHash(prot.ctx.OriginModule);
uint hashBlob = writer.MetaData.BlobHeap.Add(hash);
MDTable <RawFileRow> fileTbl = writer.MetaData.TablesHeap.FileTable;
uint fileRid = fileTbl.Add(new RawFileRow(
(uint)FileAttributes.ContainsMetaData,
writer.MetaData.StringsHeap.Add("koi"),
hashBlob));
}
};
}
public void OnWriterEvent(ModuleWriterBase writer, ModuleWriterEvent evt)
{
if (evt == ModuleWriterEvent.MDBeginCreateTables)
{
// Add key signature
uint sigBlob = writer.MetaData.BlobHeap.Add(ctx.KeySig);
uint sigRid = writer.MetaData.TablesHeap.StandAloneSigTable.Add(new RawStandAloneSigRow(sigBlob));
Debug.Assert(sigRid == 1);
uint sigToken = 0x11000000 | sigRid;
ctx.KeyToken = sigToken;
MutationHelper.InjectKey(writer.Module.EntryPoint, 2, (int)sigToken);
}
else if (evt == ModuleWriterEvent.MDBeginAddResources)
{
// Compute hash
byte[] hash = SHA1.Create().ComputeHash(ctx.OriginModule);
uint hashBlob = writer.MetaData.BlobHeap.Add(hash);
MDTable <RawFileRow> fileTbl = writer.MetaData.TablesHeap.FileTable;
uint fileRid = fileTbl.Add(new RawFileRow(
(uint)FileAttributes.ContainsMetaData,
writer.MetaData.StringsHeap.Add("koi"),
hashBlob));
uint impl = CodedToken.Implementation.Encode(new MDToken(Table.File, fileRid));
// Add resources
MDTable <RawManifestResourceRow> resTbl = writer.MetaData.TablesHeap.ManifestResourceTable;
foreach (var resource in ctx.ManifestResources)
{
resTbl.Add(new RawManifestResourceRow(resource.Item1, resource.Item2, writer.MetaData.StringsHeap.Add(resource.Item3), impl));
}
}
}
void Randomize <T>(MDTable <T> table) where T : IRawRow
{
List <T> rows = table.ToList();
random.Shuffle(rows);
table.Reset();
foreach (T row in rows)
{
table.Add(row);
}
}
private void Randomize <T>(MDTable <T> table) where T : IRawRow
{
List <T> list = table.ToList <T>();
this.random.Shuffle <T>(list);
table.Reset();
foreach (T current in list)
{
table.Add(current);
}
}
public void OnWriterEvent(ModuleWriterBase writer, ModuleWriterEvent evt)
{
if (evt == ModuleWriterEvent.MDBeginCreateTables)
{
// Add key signature
uint sigBlob = writer.Metadata.BlobHeap.Add(ctx.KeySig);
uint sigRid = writer.Metadata.TablesHeap.StandAloneSigTable.Add(new RawStandAloneSigRow(sigBlob));
Debug.Assert(sigRid == 1);
uint sigToken = 0x11000000 | sigRid;
ctx.KeyToken = sigToken;
MutationHelper.InjectKey(writer.Module.EntryPoint, 2, (int)sigToken);
}
else if (evt == ModuleWriterEvent.MDBeginAddResources && !ctx.CompatMode)
{
// Compute hash
byte[] hash = SHA1.Create().ComputeHash(ctx.OriginModule);
uint hashBlob = writer.Metadata.BlobHeap.Add(hash);
MDTable <RawFileRow> fileTbl = writer.Metadata.TablesHeap.FileTable;
uint fileRid = fileTbl.Add(new RawFileRow(
(uint)FileAttributes.ContainsMetadata,
writer.Metadata.StringsHeap.Add("koi"),
hashBlob));
uint impl = CodedToken.Implementation.Encode(new MDToken(Table.File, fileRid));
// Add resources
MDTable <RawManifestResourceRow> resTbl = writer.Metadata.TablesHeap.ManifestResourceTable;
foreach (var resource in ctx.ManifestResources)
{
resTbl.Add(new RawManifestResourceRow(resource.Offset, resource.Flags, writer.Metadata.StringsHeap.Add(resource.Value), impl));
}
// Add exported types
var exTbl = writer.Metadata.TablesHeap.ExportedTypeTable;
foreach (var type in ctx.OriginModuleDef.GetTypes())
{
if (!type.IsVisibleOutside())
{
continue;
}
exTbl.Add(new RawExportedTypeRow((uint)type.Attributes, 0,
writer.Metadata.StringsHeap.Add(type.Name),
writer.Metadata.StringsHeap.Add(type.Namespace), impl));
}
}
}
