public bool DisableExpirationDateCheck() { ABCFile abc = ABCFiles[2]; ASInstance windowContext = abc.FindInstanceByName("WindowContext"); if (windowContext == null) { return(false); } using (var inCode = new FlashReader(windowContext.Constructor.Body.Bytecode)) using (var outCode = new FlashWriter()) { int setLocal11Itterations = 0; while (inCode.Position != inCode.Length) { OPCode op = inCode.ReadOP(); outCode.WriteOP(op); if (op != OPCode.SetLocal) { continue; } int setLocalIndex = inCode.Read7BitEncodedInt(); outCode.Write7BitEncodedInt(setLocalIndex); if (setLocalIndex != 11 || (++setLocal11Itterations != 2)) { continue; } outCode.WriteOP(OPCode.ReturnVoid); outCode.Write(inCode.ToArray(), inCode.Position, inCode.Length - inCode.Position); windowContext.Constructor.Body.Bytecode = outCode.ToArray(); return(true); } } return(false); }
protected void CopyBytecode(FlashReader inCode, FlashWriter outCode, int index, int count) { byte[] bytecode = inCode.ToArray(); outCode.Write(bytecode, index, count); }
public bool ReplaceRSA(int exponent, string modulus) { ABCFile abc = ABCFiles[2]; int modulusIndex = abc.Constants.AddString(modulus); int exponentIndex = abc.Constants .AddString(exponent.ToString("x")); int rsaStart = 0; ASInstance commClass = abc.FindInstanceByName("HabboCommunicationDemo"); ASMethod verifier = FindVerifyMethod(commClass, abc, out rsaStart); using (var inCode = new FlashReader(verifier.Body.Bytecode)) using (var outCode = new FlashWriter(inCode.Length)) { bool searchingKeys = true; inCode.Position = rsaStart; outCode.Write(inCode.ToArray(), 0, rsaStart); while (inCode.Position != inCode.Length) { byte codeByte = inCode.ReadByte(); outCode.Write(codeByte); if (!searchingKeys) { outCode.Write(inCode.ToArray(), inCode.Position, inCode.Length - inCode.Position); break; } switch ((OPCode)codeByte) { case OPCode.GetLex: { outCode.Position--; outCode.WriteOP(OPCode.PushString); int typeIndex = inCode.Read7BitEncodedInt(); ASMultiname type = abc.Constants.Multinames[typeIndex]; inCode.ReadOP(); inCode.Read7BitEncodedInt(); inCode.Read7BitEncodedInt(); if (modulusIndex > 0) { outCode.Write7BitEncodedInt(modulusIndex); modulusIndex = -1; } else if (searchingKeys) { outCode.Write7BitEncodedInt(exponentIndex); searchingKeys = false; } break; } case OPCode.PushString: { int stringIndex = inCode.Read7BitEncodedInt(); string value = abc.Constants.Strings[stringIndex]; if (string.IsNullOrWhiteSpace(Modulus)) { Modulus = value; outCode.Write7BitEncodedInt(modulusIndex); } else if (string.IsNullOrWhiteSpace(Exponent)) { Exponent = value; outCode.Write7BitEncodedInt(exponentIndex); searchingKeys = false; } break; } default: continue; } } verifier.Body.Bytecode = outCode.ToArray(); if (!searchingKeys) { return(true); } } return(false); }
public bool BypassRemoteHostCheck() { ABCFile abc = ABCFiles[2]; ASInstance commManager = abc.FindInstanceByName("HabboCommunicationManager"); if (commManager == null) { return(false); } // The "host" value is always the first slot, for now. string hostValueSlotName = commManager.FindTraits <SlotConstantTrait>(TraitType.Slot) .Where(t => t.Type.ObjName == "String").ToArray()[0].ObjName; ASMethod initComponent = commManager.FindMethod("initComponent", "void").Method; if (initComponent == null) { return(false); } using (var inCode = new FlashReader(initComponent.Body.Bytecode)) using (var outCode = new FlashWriter(inCode.Length)) { int hostSlotIndex = abc.Constants.IndexOfMultiname(hostValueSlotName); while (inCode.Position != inCode.Length) { OPCode op = inCode.ReadOP(); outCode.WriteOP(op); if (op != OPCode.GetLocal_0) { continue; } op = inCode.ReadOP(); outCode.WriteOP(op); if (op != OPCode.CallPropVoid) { continue; } int callPropVoidIndex = inCode.Read7BitEncodedInt(); outCode.Write7BitEncodedInt(callPropVoidIndex); int callPropVoidArgCount = inCode.Read7BitEncodedInt(); outCode.Write7BitEncodedInt(callPropVoidArgCount); if (callPropVoidArgCount != 0) { continue; } int getPropertyNameIndex = abc.Constants .IndexOfMultiname("getProperty"); outCode.WriteOP(OPCode.GetLocal_0); outCode.WriteOP(OPCode.FindPropStrict); outCode.Write7BitEncodedInt(getPropertyNameIndex); outCode.WriteOP(OPCode.PushString); outCode.Write7BitEncodedInt(abc.Constants.AddString("connection.info.host")); outCode.WriteOP(OPCode.CallProperty); outCode.Write7BitEncodedInt(getPropertyNameIndex); outCode.Write7BitEncodedInt(1); outCode.WriteOP(OPCode.InitProperty); outCode.Write7BitEncodedInt(hostSlotIndex); outCode.Write(inCode.ToArray(), inCode.Position, inCode.Length - inCode.Position); do { op = inCode.ReadOP(); }while (op != OPCode.CallPropVoid); callPropVoidIndex = inCode.Read7BitEncodedInt(); ASMultiname callPropVoidName = abc.Constants.Multinames[callPropVoidIndex]; ASMethod connectMethod = commManager.FindMethod(callPropVoidName.ObjName, "void").Method; RemoveHostSuffix(abc, connectMethod); initComponent.Body.Bytecode = outCode.ToArray(); return(true); } } return(false); }