├── .gitattributes ├── .gitignore ├── LICENSE.txt ├── NidhoggScript.sln ├── NidhoggScript ├── CallbacksParser.hpp ├── DllInjectionParser.hpp ├── DriverParser.hpp ├── EtwtiParser.hpp ├── FileParser.hpp ├── ModuleParser.hpp ├── NidhoggCompiler.cpp ├── NidhoggCompiler.h ├── NidhoggScript.cpp ├── NidhoggScript.vcxproj ├── NidhoggScript.vcxproj.filters ├── NidhoggScriptValidator.h ├── Parser.cpp ├── Parser.hpp ├── Parsers.h ├── PatchParser.cpp ├── PatchParser.hpp ├── PortParser.hpp ├── ProcessParser.cpp ├── ProcessParser.hpp ├── RegParser.hpp ├── ShellcodeInjectionParser.hpp ├── ThreadParser.cpp ├── ThreadParser.hpp ├── pch.cpp └── pch.h ├── README.md └── images └── logo.png /.gitattributes: -------------------------------------------------------------------------------- 1 | ############################################################################### 2 | # Set default behavior to automatically normalize line endings. 3 | ############################################################################### 4 | * text=auto 5 | 6 | ############################################################################### 7 | # Set default behavior for command prompt diff. 8 | # 9 | # This is need for earlier builds of msysgit that does not have it on by 10 | # default for csharp files. 11 | # Note: This is only used by command line 12 | ############################################################################### 13 | #*.cs diff=csharp 14 | 15 | ############################################################################### 16 | # Set the merge driver for project and solution files 17 | # 18 | # Merging from the command prompt will add diff markers to the files if there 19 | # are conflicts (Merging from VS is not affected by the settings below, in VS 20 | # the diff markers are never inserted). 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 2023 Ido Veltzman 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 2023 Ido Veltzman 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . -------------------------------------------------------------------------------- /NidhoggScript.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.7.34024.191 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "NidhoggScript", "NidhoggScript\NidhoggScript.vcxproj", "{ED432B95-5D82-4DBA-8447-74C49B224459}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|x64 = Debug|x64 11 | Debug|x86 = Debug|x86 12 | Release|x64 = Release|x64 13 | Release|x86 = Release|x86 14 | EndGlobalSection 15 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 16 | {ED432B95-5D82-4DBA-8447-74C49B224459}.Debug|x64.ActiveCfg = Debug|x64 17 | {ED432B95-5D82-4DBA-8447-74C49B224459}.Debug|x64.Build.0 = Debug|x64 18 | {ED432B95-5D82-4DBA-8447-74C49B224459}.Debug|x86.ActiveCfg = Debug|Win32 19 | {ED432B95-5D82-4DBA-8447-74C49B224459}.Debug|x86.Build.0 = Debug|Win32 20 | {ED432B95-5D82-4DBA-8447-74C49B224459}.Release|x64.ActiveCfg = Release|x64 21 | {ED432B95-5D82-4DBA-8447-74C49B224459}.Release|x64.Build.0 = Release|x64 22 | {ED432B95-5D82-4DBA-8447-74C49B224459}.Release|x86.ActiveCfg = Release|Win32 23 | {ED432B95-5D82-4DBA-8447-74C49B224459}.Release|x86.Build.0 = Release|Win32 24 | EndGlobalSection 25 | GlobalSection(SolutionProperties) = preSolution 26 | HideSolutionNode = FALSE 27 | EndGlobalSection 28 | GlobalSection(ExtensibilityGlobals) = postSolution 29 | SolutionGuid = {F3CA31AA-CC38-4263-8B11-8C99D64F808D} 30 | EndGlobalSection 31 | EndGlobal 32 | -------------------------------------------------------------------------------- /NidhoggScript/CallbacksParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class CallbacksParser : public Parser 6 | { 7 | public: 8 | CallbacksParser() { 9 | this->opcode = ParserOpcode::Callbacks; 10 | 11 | this->options[Options::Enable] = { 2, {ArgType::ULong, ArgType::ULong} }; 12 | this->options[Options::Disable] = { 2, {ArgType::ULong, ArgType::ULong} }; 13 | } 14 | ~CallbacksParser() {} 15 | }; 16 | 17 | -------------------------------------------------------------------------------- /NidhoggScript/DllInjectionParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class DllInjectionParser : public Parser 6 | { 7 | public: 8 | DllInjectionParser() { 9 | this->opcode = ParserOpcode::Dllinject; 10 | 11 | this->options[Options::APC] = {2, {ArgType::ULong, ArgType::CharPtr}}; 12 | this->options[Options::Thread] = { 2, {ArgType::ULong, ArgType::CharPtr} }; 13 | } 14 | ~DllInjectionParser() {} 15 | }; 16 | 17 | -------------------------------------------------------------------------------- /NidhoggScript/DriverParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class DriverParser : public Parser 6 | { 7 | public: 8 | DriverParser() { 9 | this->opcode = ParserOpcode::Driver; 10 | 11 | this->options[Options::Hide] = { 1, {ArgType::WCharPtr} }; 12 | this->options[Options::Unhide] = { 1, {ArgType::WCharPtr} }; 13 | } 14 | ~DriverParser() {} 15 | }; 16 | 17 | -------------------------------------------------------------------------------- /NidhoggScript/EtwtiParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class EtwTiParser : public Parser 6 | { 7 | public: 8 | EtwTiParser() { 9 | this->opcode = ParserOpcode::Etwti; 10 | 11 | this->options[Options::Enable] = { 0, {} }; 12 | this->options[Options::Disable] = { 0, {} }; 13 | } 14 | ~EtwTiParser() {} 15 | }; 16 | 17 | -------------------------------------------------------------------------------- /NidhoggScript/FileParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class FileParser : public Parser 6 | { 7 | public: 8 | FileParser() { 9 | this->opcode = ParserOpcode::File; 10 | 11 | this->options[Options::Add] = { 1, {ArgType::WCharPtr} }; 12 | this->options[Options::Remove] = { 1, {ArgType::WCharPtr} }; 13 | this->options[Options::Clear] = { 0, {} }; 14 | } 15 | ~FileParser() {} 16 | }; 17 | 18 | -------------------------------------------------------------------------------- /NidhoggScript/ModuleParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class ModuleParser : public Parser 6 | { 7 | public: 8 | ModuleParser() { 9 | this->opcode = ParserOpcode::Module; 10 | 11 | this->options[Options::Hide] = { 1, {ArgType::WCharPtr} }; 12 | } 13 | ~ModuleParser() {} 14 | }; 15 | 16 | -------------------------------------------------------------------------------- /NidhoggScript/NidhoggCompiler.cpp: -------------------------------------------------------------------------------- 1 | #include "pch.h" 2 | #include "NidhoggCompiler.h" 3 | 4 | NidhoggCompiler::NidhoggCompiler(std::string filePath) { 5 | std::string token; 6 | 7 | if (filePath.empty()) 8 | throw std::invalid_argument("[-] Error: File path cannot be empty."); 9 | 10 | if (!std::filesystem::exists(filePath)) 11 | throw std::filesystem::filesystem_error("[-] Error: File does not exist.", std::error_code()); 12 | 13 | size_t length = std::filesystem::file_size(filePath); 14 | 15 | if (length == 0) 16 | throw std::fstream::failure("[-] Error: File cannot be empty."); 17 | 18 | std::ifstream fileStream(filePath); 19 | 20 | if (!fileStream.is_open()) 21 | throw std::fstream::failure("[-] Error: Failed to open file."); 22 | 23 | std::string data((std::istreambuf_iterator(fileStream)), 24 | std::istreambuf_iterator()); 25 | 26 | size_t pos = 0; 27 | 28 | while ((pos = data.find("\n")) != std::string::npos) { 29 | token = data.substr(0, pos); 30 | this->commands.push_back(token); 31 | data.erase(0, pos + 1); 32 | } 33 | 34 | if (!data.empty()) 35 | this->commands.push_back(data); 36 | 37 | // Initialize parsers. 38 | this->parsersMap = { 39 | {"process", new ProcessParser()}, 40 | {"thread", new ThreadParser()}, 41 | {"module", new ModuleParser()}, 42 | {"driver", new DriverParser()}, 43 | {"file", new FileParser()}, 44 | {"reg", new RegParser()}, 45 | {"patch", new PatchParser()}, 46 | {"shinject", new ShellcodeInjectionParser()}, 47 | {"dllinject", new DllInjectionParser()}, 48 | {"callbacks", new CallbacksParser()}, 49 | {"etwti", new EtwTiParser()}, 50 | {"port", new PortParser()} 51 | }; 52 | } 53 | 54 | NidhoggCompiler::~NidhoggCompiler() { 55 | for (auto& parser : this->parsersMap) 56 | delete parser.second; 57 | } 58 | 59 | bool NidhoggCompiler::Compile(std::string outputPath) { 60 | std::vector compiledBytes; 61 | std::vector args; 62 | uint16_t commandType = 0; 63 | DWORD startIndex = 0; 64 | bool assembled = true; 65 | compiledBytes.insert(compiledBytes.end(), SIGNATURE, SIGNATURE + sizeof(SIGNATURE)); 66 | 67 | // Push the size of the commands. 68 | auto PushInt = [&](std::vector& compiledBytes, size_t size) { 69 | size_t intToPush = size; 70 | 71 | if (intToPush == 0) 72 | compiledBytes.push_back(0); 73 | else { 74 | if (intToPush > 0xFF) { 75 | while (intToPush != 0) { 76 | compiledBytes.push_back(intToPush & 0xFF); 77 | intToPush >>= 8; 78 | } 79 | } 80 | else 81 | compiledBytes.push_back(intToPush); 82 | } 83 | }; 84 | 85 | size_t commandsSize = this->commands.size(); 86 | PushInt(compiledBytes, commandsSize); 87 | 88 | for (std::string& command : this->commands) { 89 | // Push the command. 90 | commandType = GetCommandType(command); 91 | 92 | if (commandType == INVALID_COMMAND_TYPE) { 93 | assembled = false; 94 | break; 95 | } 96 | 97 | PushInt(compiledBytes, commandType); 98 | 99 | // Push the args. 100 | args = GetArgs(command); 101 | 102 | if (args.size() > 0) { 103 | PushInt(compiledBytes, args.size()); 104 | 105 | if ((ParserOpcode)commandType != ParserOpcode::Patch) { 106 | std::string option = args[0]; 107 | 108 | if (this->options.find(option) == this->options.end()) { 109 | assembled = false; 110 | break; 111 | } 112 | 113 | // Pushing the option's opcode. 114 | PushInt(compiledBytes, 1); 115 | PushInt(compiledBytes, this->options[option]); 116 | startIndex = 1; 117 | } 118 | 119 | // Pushing the rest of the args. 120 | for (DWORD i = startIndex; i < args.size(); i++) { 121 | PushInt(compiledBytes, args[i].size()); 122 | compiledBytes.insert(compiledBytes.end(), args[i].begin(), args[i].end()); 123 | } 124 | } 125 | else { 126 | compiledBytes.push_back(0); 127 | compiledBytes.push_back(0); 128 | } 129 | } 130 | 131 | if (assembled) { 132 | std::ofstream fileStream; 133 | 134 | if (outputPath.empty()) 135 | outputPath = std::filesystem::current_path().string(); 136 | std::stringstream path(outputPath, std::ios_base::app | std::ios_base::out); 137 | path << "\\out.ndhg"; 138 | fileStream.open(path.str(), std::ios::out | std::ios::binary); 139 | fileStream.write((char*)compiledBytes.data(), compiledBytes.size()); 140 | } 141 | return assembled; 142 | } 143 | 144 | bool NidhoggCompiler::Validate(std::string assembledFilePath) { 145 | DWORD offset = 0; 146 | 147 | if (assembledFilePath.empty()) { 148 | std::cerr << "[-] Error: File path cannot be empty." << std::endl; 149 | return false; 150 | } 151 | 152 | if (!std::filesystem::exists(assembledFilePath)) { 153 | std::cerr << "[-] Error: File does not exist." << std::endl; 154 | return false; 155 | } 156 | 157 | size_t length = std::filesystem::file_size(assembledFilePath); 158 | 159 | if (length < MINIMUM_FILE_SIZE) { 160 | std::cerr << "[-] Error: Invalid file size." << std::endl; 161 | return false; 162 | } 163 | 164 | std::vector data(length); 165 | std::ifstream fileStream(assembledFilePath, std::ios::binary); 166 | fileStream.read((char*)data.data(), length); 167 | 168 | // Checking signature. 169 | if (memcmp(data.data(), SIGNATURE, sizeof(SIGNATURE)) != 0) { 170 | std::cerr << "[-] Error: Invalid file signature." << std::endl; 171 | return false; 172 | } 173 | 174 | // Checking commands size. 175 | size_t commandsSize = data[4]; 176 | 177 | if (commandsSize == 0) { 178 | std::cerr << "[-] Error: Invalid commands size." << std::endl; 179 | return false; 180 | } 181 | 182 | for (DWORD i = 0; i < commandsSize; i++) { 183 | if (!ValidateCommand(data, FIRST_COMMAND_OFFSET + offset + i, &offset)) 184 | return false; 185 | } 186 | 187 | return true; 188 | } 189 | 190 | bool NidhoggCompiler::ValidateCommand(std::vector data, size_t index, DWORD* outOffset) { 191 | uint16_t commandType = data[index]; 192 | 193 | if (reverseOpcodeMap.find(commandType) == reverseOpcodeMap.end()) { 194 | std::cerr << "[-] Error: Unknown command type." << std::endl; 195 | return false; 196 | } 197 | *outOffset += 1; 198 | uint16_t argsNumber = data[index + 1]; 199 | 200 | if (argsNumber > 0) { 201 | *outOffset += 1; 202 | argsNumber = (ParserOpcode)commandType == ParserOpcode::Patch ? argsNumber : argsNumber - 1; 203 | 204 | // index + 2 because of the args number and the command type. 205 | return parsersMap[reverseOpcodeMap[commandType]]->ValidateArgs(data, index + 2, argsNumber, 206 | outOffset); 207 | } 208 | 209 | return false; 210 | } 211 | 212 | uint16_t NidhoggCompiler::GetCommandType(std::string command) { 213 | size_t pos = command.find(" "); 214 | std::string commandName = command.substr(0, pos); 215 | 216 | if (this->parsersMap.find(commandName) == this->parsersMap.end()) 217 | return INVALID_COMMAND_TYPE; 218 | 219 | return this->parsersMap[commandName]->GetOpcode(); 220 | } 221 | 222 | std::vector NidhoggCompiler::GetArgs(std::string command) { 223 | bool isString = false; 224 | std::string token; 225 | std::string strToken; 226 | size_t quotesPos = 0; 227 | std::vector args; 228 | 229 | // Remove the command name from the string. 230 | size_t pos = command.find(" "); 231 | command.erase(0, pos + 1); 232 | 233 | // Parse the arguments. 234 | while ((pos = command.find(" ")) != std::string::npos) { 235 | token = command.substr(0, pos); 236 | quotesPos = token.find('"'); 237 | 238 | // If it is a string with spaces, include everything until the end of the string (marked by "). 239 | if (quotesPos != std::string::npos) { 240 | if (token[0] == '"') { 241 | isString = true; 242 | token.erase(std::remove(token.begin(), token.end(), '"'), token.end()); 243 | strToken = token; 244 | } 245 | if (token[token.length() - 1] == '"') { 246 | if (strToken != token) { 247 | token.erase(std::remove(token.begin(), token.end(), '"'), token.end()); 248 | strToken += token; 249 | } 250 | isString = false; 251 | args.push_back(strToken); 252 | strToken = ""; 253 | } 254 | } 255 | else if (isString) 256 | strToken += " " + token; 257 | else 258 | args.push_back(token); 259 | command.erase(0, pos + 1); 260 | } 261 | 262 | if (!command.empty()) { 263 | if (isString) { 264 | if (command[command.length() - 1] == '"') { 265 | command.erase(std::remove(command.begin(), command.end(), '"'), command.end()); 266 | isString = false; 267 | strToken += " " + command; 268 | args.push_back(strToken); 269 | } 270 | } 271 | else 272 | args.push_back(command); 273 | } 274 | 275 | return args; 276 | } 277 | -------------------------------------------------------------------------------- /NidhoggScript/NidhoggCompiler.h: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | #include "Parsers.h" 5 | 6 | // NDHG signature. 7 | constexpr byte SIGNATURE[] = { 0x4e, 0x44, 0x48, 0x47 }; 8 | 9 | // Length of signature + amount of commands + first command opcode + size of args. 10 | constexpr size_t MINIMUM_FILE_SIZE = sizeof(SIGNATURE) + 3; 11 | constexpr size_t FIRST_COMMAND_OFFSET = sizeof(SIGNATURE) + 1; 12 | constexpr uint16_t INVALID_COMMAND_TYPE = 0xFF; 13 | 14 | class NidhoggCompiler 15 | { 16 | private: 17 | std::vector parsers; 18 | std::unordered_map parsersMap; 19 | std::vector commands; 20 | 21 | std::unordered_map reverseOpcodeMap = { 22 | {0, "process"}, 23 | {1, "thread"}, 24 | {2, "module"}, 25 | {3, "driver"}, 26 | {4, "file"}, 27 | {5, "reg"}, 28 | {6, "patch"}, 29 | {7, "shinject"}, 30 | {8, "dllinject"}, 31 | {9, "callbacks"}, 32 | {10, "etwti"}, 33 | {11, "port"} 34 | }; 35 | 36 | // Option name | opcode. 37 | std::unordered_map options = { 38 | {"add", 0}, 39 | {"remove", 1}, 40 | {"enable", 0}, 41 | {"disable", 1}, 42 | {"clear", 2}, 43 | {"hide", 3}, 44 | {"unhide", 4}, 45 | {"elevate", 5}, 46 | {"signature", 6}, 47 | {"apc", 7}, 48 | {"thread", 8}, 49 | {"restore", 0} 50 | }; 51 | 52 | uint16_t GetCommandType(std::string command); 53 | std::vector GetArgs(std::string command); 54 | bool ValidateCommand(std::vector data, size_t index, DWORD* outOffset); 55 | 56 | public: 57 | NidhoggCompiler(std::string filePath); 58 | ~NidhoggCompiler(); 59 | bool Compile(std::string outputPath); 60 | bool Validate(std::string assembledFilePath); 61 | }; 62 | -------------------------------------------------------------------------------- /NidhoggScript/NidhoggScript.cpp: -------------------------------------------------------------------------------- 1 | #include "pch.h" 2 | #include "NidhoggCompiler.h" 3 | 4 | int main(int argc, char* argv[]) { 5 | if (argc != 3 && argc != 2) { 6 | std::cerr << "[-] Usage: " << argv[0] << " " << std::endl; 7 | std::cerr << "[-] Usage: " << argv[0] << " " << std::endl; 8 | return 1; 9 | } 10 | 11 | try { 12 | NidhoggCompiler compiler(argv[1]); 13 | 14 | if (argc == 3) { 15 | if (compiler.Compile(argv[2])) { 16 | std::cout << "[?] Compiling..." << std::endl; 17 | std::stringstream path(argv[2], std::ios_base::app | std::ios_base::out); 18 | path << "\\out.ndhg"; 19 | 20 | std::cout << "[+] Compiled successfully.\n[?] Validating..." << std::endl; 21 | 22 | if (compiler.Validate(path.str())) 23 | std::cout << "[+] Output is valid." << std::endl; 24 | else { 25 | std::cerr << "[-] The output is invalid." << std::endl; 26 | return 1; 27 | } 28 | } 29 | else { 30 | std::cerr << "[-] Failed to compile." << std::endl; 31 | return 1; 32 | } 33 | } 34 | else { 35 | std::cout << "[?] Validating..." << std::endl; 36 | if (compiler.Validate(argv[1])) 37 | std::cout << "[+] Input is valid." << std::endl; 38 | else { 39 | std::cerr << "[-] The input is invalid." << std::endl; 40 | return 1; 41 | } 42 | } 43 | } 44 | catch (std::invalid_argument& e) { 45 | std::cerr << e.what() << std::endl; 46 | return 1; 47 | } 48 | catch (std::filesystem::filesystem_error& e) { 49 | std::cerr << e.what() << std::endl; 50 | return 1; 51 | } 52 | catch (std::fstream::failure& e) { 53 | std::cerr << e.what() << std::endl; 54 | return 1; 55 | } 56 | 57 | return 0; 58 | } 59 | 60 | -------------------------------------------------------------------------------- /NidhoggScript/NidhoggScript.vcxproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | Debug 14 | x64 15 | 16 | 17 | Release 18 | x64 19 | 20 | 21 | 22 | 17.0 23 | Win32Proj 24 | {ed432b95-5d82-4dba-8447-74c49b224459} 25 | NidhoggScript 26 | 10.0 27 | 28 | 29 | 30 | Application 31 | true 32 | v143 33 | Unicode 34 | 35 | 36 | Application 37 | false 38 | v143 39 | true 40 | Unicode 41 | 42 | 43 | Application 44 | true 45 | v143 46 | Unicode 47 | 48 | 49 | Application 50 | false 51 | v143 52 | true 53 | Unicode 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | Level3 76 | true 77 | WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) 78 | true 79 | 80 | 81 | Console 82 | true 83 | 84 | 85 | 86 | 87 | Level3 88 | true 89 | true 90 | true 91 | WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions) 92 | true 93 | 94 | 95 | Console 96 | true 97 | true 98 | true 99 | 100 | 101 | 102 | 103 | Level3 104 | true 105 | _DEBUG;_CONSOLE;%(PreprocessorDefinitions) 106 | true 107 | stdcpp20 108 | Use 109 | pch.h 110 | 111 | 112 | Console 113 | true 114 | 115 | 116 | 117 | 118 | Level3 119 | true 120 | true 121 | true 122 | NDEBUG;_CONSOLE;%(PreprocessorDefinitions) 123 | true 124 | 125 | 126 | Console 127 | true 128 | true 129 | true 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | Create 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | -------------------------------------------------------------------------------- /NidhoggScript/NidhoggScript.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | 18 | 19 | Source Files 20 | 21 | 22 | Source Files 23 | 24 | 25 | Source Files 26 | 27 | 28 | Source Files 29 | 30 | 31 | Source Files 32 | 33 | 34 | 35 | 36 | Header Files 37 | 38 | 39 | Header Files 40 | 41 | 42 | Header Files 43 | 44 | 45 | Header Files 46 | 47 | 48 | Header Files 49 | 50 | 51 | Header Files 52 | 53 | 54 | Header Files 55 | 56 | 57 | Header Files 58 | 59 | 60 | Header Files 61 | 62 | 63 | Header Files 64 | 65 | 66 | Header Files 67 | 68 | 69 | Header Files 70 | 71 | 72 | Header Files 73 | 74 | 75 | Header Files 76 | 77 | 78 | Header Files 79 | 80 | 81 | Header Files 82 | 83 | 84 | -------------------------------------------------------------------------------- /NidhoggScript/NidhoggScriptValidator.h: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | 4 | class NidhoggScriptValidator 5 | { 6 | private: 7 | std::string script; 8 | public: 9 | NidhoggScriptValidator(std::string script); 10 | ~NidhoggScriptValidator() {}; 11 | bool Validator(); 12 | }; 13 | 14 | -------------------------------------------------------------------------------- /NidhoggScript/Parser.cpp: -------------------------------------------------------------------------------- 1 | #include "pch.h" 2 | #include "Parser.hpp" 3 | 4 | bool Parser::ValidateArgs(std::vector data, size_t index, uint16_t argsNumber, DWORD* outOffset) { 5 | size_t dataSize = data.size(); 6 | 7 | // Validating the opcode size. 8 | if (dataSize < index) { 9 | std::cerr << "[-] Error: Invalid data size." << std::endl; 10 | return false; 11 | } 12 | 13 | if (data[index] != 1) { 14 | std::cerr << "[-] Error: Invalid option opcode size." << std::endl; 15 | return false; 16 | } 17 | 18 | if (dataSize < index + 1) { 19 | std::cerr << "[-] Error: Invalid data size." << std::endl; 20 | return false; 21 | } 22 | 23 | // Check the option exists for the command type. 24 | Options option = (Options)data[index + 1]; 25 | 26 | if (this->options.find(option) == this->options.end()) { 27 | std::cerr << "[-] Error: Option not supported for the command type." << std::endl; 28 | return false; 29 | } 30 | 31 | if (this->options[option].argsNumber != argsNumber) { 32 | std::cerr << "[-] Error: Invalid amount of arguments for the option." << std::endl; 33 | return false; 34 | } 35 | 36 | // opcode size + 1 (opcode). 37 | DWORD addedOffset = 2; 38 | PVOID currentArg = NULL; 39 | DWORD argSize = 0; 40 | DWORD currentIndex = 0; 41 | 42 | for (uint16_t i = 0; i < argsNumber; i++) { 43 | currentIndex = (DWORD)index + addedOffset + i; 44 | 45 | if (dataSize < currentIndex) { 46 | std::cerr << "[-] Error: Invalid data size." << std::endl; 47 | return false; 48 | } 49 | argSize = data[currentIndex]; 50 | 51 | // Validating the size. 52 | if (argSize > dataSize - currentIndex) { 53 | std::cerr << "[-] Error: Invalid argument size." << std::endl; 54 | return false; 55 | } 56 | currentArg = (PVOID)malloc(argSize); 57 | 58 | if (!currentArg) { 59 | std::cerr << "[-] Error: Failed to allocate memory, can't validate." << std::endl; 60 | return false; 61 | } 62 | memset(currentArg, 0, argSize); 63 | memcpy(currentArg, &data[currentIndex + 1], argSize); 64 | 65 | // Validating the type. 66 | switch (this->options[option].types[i]) { 67 | case ArgType::ULong: 68 | { 69 | for (DWORD j = 0; j < argSize; j++) { 70 | if (isdigit(((char*)currentArg)[j]) == 0) { 71 | free(currentArg); 72 | std::cerr << "[-] Error: Invalid argument type." << std::endl; 73 | return false; 74 | } 75 | } 76 | break; 77 | } 78 | case ArgType::CharPtr: 79 | case ArgType::WCharPtr: 80 | { 81 | for (DWORD j = 0; j < argSize; j++) { 82 | if (!isChar(((char*)currentArg)[j])) { 83 | free(currentArg); 84 | std::cerr << "[-] Error: Invalid argument type." << std::endl; 85 | return false; 86 | } 87 | } 88 | break; 89 | } 90 | } 91 | 92 | // argsSize + 1 because of the size of the argSize variable. 93 | free(currentArg); 94 | addedOffset += argSize; 95 | } 96 | 97 | *outOffset += addedOffset; 98 | return true; 99 | } 100 | -------------------------------------------------------------------------------- /NidhoggScript/Parser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | 4 | enum class ArgType { 5 | ULong, 6 | CharPtr, 7 | WCharPtr, 8 | VoidPtr, 9 | }; 10 | 11 | enum class ParserOpcode { 12 | Process, 13 | Thread, 14 | Module, 15 | Driver, 16 | File, 17 | Reg, 18 | Patch, 19 | Shinject, 20 | Dllinject, 21 | Callbacks, 22 | Etwti, 23 | Port, 24 | Unknown = 0xFF 25 | }; 26 | 27 | enum class Options { 28 | Add, Remove, 29 | Clear, Hide, 30 | Unhide, Elevate, 31 | Signature, APC, 32 | Thread, 33 | Enable = 0, Disable = 1, 34 | Restore = 0 35 | }; 36 | 37 | typedef struct _ArgMetadata { 38 | uint16_t argsNumber; 39 | std::vector types; 40 | } ArgMetadata; 41 | 42 | class Parser { 43 | protected: 44 | ParserOpcode opcode; 45 | std::unordered_map options; 46 | 47 | constexpr bool isChar(char c) { 48 | return c >= ' ' && c <= '~'; 49 | } 50 | public: 51 | Parser() { opcode = ParserOpcode::Unknown; } 52 | virtual ~Parser() {} 53 | 54 | virtual bool ValidateArgs(std::vector data, size_t index, uint16_t argsNumber, DWORD* outOffset); 55 | uint16_t GetOpcode() { return (uint16_t)opcode; } 56 | }; -------------------------------------------------------------------------------- /NidhoggScript/Parsers.h: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "ProcessParser.hpp" 4 | #include "ThreadParser.hpp" 5 | #include "ModuleParser.hpp" 6 | #include "DriverParser.hpp" 7 | #include "FileParser.hpp" 8 | #include "RegParser.hpp" 9 | #include "PatchParser.hpp" 10 | #include "ShellcodeInjectionParser.hpp" 11 | #include "DllInjectionParser.hpp" 12 | #include "CallbacksParser.hpp" 13 | #include "EtwtiParser.hpp" 14 | #include "PortParser.hpp" 15 | -------------------------------------------------------------------------------- /NidhoggScript/PatchParser.cpp: -------------------------------------------------------------------------------- 1 | #include "pch.h" 2 | #include "PatchParser.hpp" 3 | 4 | bool PatchParser::ValidateArgs(std::vector data, size_t index, uint16_t argsNumber, DWORD* outOffset) { 5 | DWORD addedOffset = 0; 6 | PVOID currentArg = NULL; 7 | DWORD argSize = 0; 8 | DWORD currentIndex = 0; 9 | size_t dataSize = data.size(); 10 | 11 | // Validating the opcode size. 12 | if (dataSize < index + 1) { 13 | std::cerr << "[-] Error: Invalid data size." << std::endl; 14 | return false; 15 | } 16 | if (argsNumber != 4) { 17 | std::cerr << "[-] Error: Invalid amount of arguments for the option." << std::endl; 18 | return false; 19 | } 20 | 21 | auto CheckArg = [&](std::vector& data, size_t dataSize, DWORD currentIndex, ArgType expectedType, 22 | DWORD* addedOffset) { 23 | if (dataSize < currentIndex) { 24 | std::cerr << "[-] Error: Invalid data size." << std::endl; 25 | return false; 26 | } 27 | argSize = data[currentIndex]; 28 | 29 | // Validating the size. 30 | if (argSize > dataSize - currentIndex) { 31 | std::cerr << "[-] Error: Invalid argument size." << std::endl; 32 | return false; 33 | } 34 | currentArg = (PVOID)malloc(argSize); 35 | 36 | if (!currentArg) { 37 | std::cerr << "[-] Error: Failed to allocate memory, can't validate." << std::endl; 38 | return false; 39 | } 40 | memset(currentArg, 0, argSize); 41 | memcpy(currentArg, &data[currentIndex + 1], argSize); 42 | 43 | // Validating the type. 44 | switch (expectedType) { 45 | case ArgType::ULong: 46 | { 47 | for (DWORD j = 0; j < argSize; j++) { 48 | if (isdigit(((char*)currentArg)[j]) == 0) { 49 | free(currentArg); 50 | std::cerr << "[-] Error: Invalid argument type." << std::endl; 51 | return false; 52 | } 53 | } 54 | break; 55 | } 56 | case ArgType::CharPtr: 57 | case ArgType::WCharPtr: 58 | { 59 | for (DWORD j = 0; j < argSize; j++) { 60 | if (!isChar(((char*)currentArg)[j])) { 61 | free(currentArg); 62 | std::cerr << "[-] Error: Invalid argument type." << std::endl; 63 | return false; 64 | } 65 | } 66 | break; 67 | } 68 | } 69 | 70 | free(currentArg); 71 | *addedOffset += argSize; 72 | }; 73 | 74 | bool res = CheckArg(data, dataSize, index + addedOffset, ArgType::ULong, &addedOffset) && 75 | CheckArg(data, dataSize, index + addedOffset + 1, ArgType::CharPtr, &addedOffset) && 76 | CheckArg(data, dataSize, index + addedOffset + 2, ArgType::CharPtr, &addedOffset) && 77 | CheckArg(data, dataSize, index + addedOffset + 3, ArgType::ULong, &addedOffset); 78 | 79 | *outOffset += addedOffset; 80 | return res; 81 | } -------------------------------------------------------------------------------- /NidhoggScript/PatchParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class PatchParser : public Parser 6 | { 7 | public: 8 | PatchParser() { 9 | this->opcode = ParserOpcode::Patch; 10 | } 11 | ~PatchParser() {} 12 | bool ValidateArgs(std::vector data, size_t index, uint16_t argsNumber, DWORD* outOffset) override; 13 | }; 14 | 15 | -------------------------------------------------------------------------------- /NidhoggScript/PortParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class PortParser : public Parser 6 | { 7 | public: 8 | PortParser() { 9 | this->opcode = ParserOpcode::Port; 10 | 11 | this->options[Options::Clear] = { 0, {} }; 12 | this->options[Options::Hide] = { 3, {ArgType::ULong, ArgType::ULong, ArgType::ULong} }; 13 | this->options[Options::Unhide] = { 3, {ArgType::ULong, ArgType::ULong, ArgType::ULong} }; 14 | } 15 | ~PortParser() {} 16 | }; 17 | 18 | -------------------------------------------------------------------------------- /NidhoggScript/ProcessParser.cpp: -------------------------------------------------------------------------------- 1 | #include "pch.h" 2 | #include "ProcessParser.h" 3 | 4 | ProcessParser::ProcessParser() { 5 | this->options[Options::Add] = { 1, {TypeULong} }; 6 | this->options[Options::Remove] = { 1, {TypeULong} }; 7 | this->options[Options::Clear] = { 0, {} }; 8 | this->options[Options::Hide] = { 1, {TypeULong} }; 9 | this->options[Options::Unhide] = { 1, {TypeULong} }; 10 | this->options[Options::Elevate] = { 1, {TypeULong} }; 11 | this->options[Options::Signature] = { 3, {TypeULong, TypeULong, TypeULong} }; 12 | } -------------------------------------------------------------------------------- /NidhoggScript/ProcessParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class ProcessParser : public Parser 6 | { 7 | public: 8 | ProcessParser() { 9 | this->opcode = ParserOpcode::Process; 10 | 11 | this->options[Options::Add] = { 1, {ArgType::ULong} }; 12 | this->options[Options::Remove] = { 1, {ArgType::ULong} }; 13 | this->options[Options::Clear] = { 0, {} }; 14 | this->options[Options::Hide] = { 1, {ArgType::ULong} }; 15 | this->options[Options::Unhide] = { 1, {ArgType::ULong} }; 16 | this->options[Options::Elevate] = { 1, {ArgType::ULong} }; 17 | this->options[Options::Signature] = { 3, {ArgType::ULong, ArgType::ULong, ArgType::ULong} }; 18 | } 19 | ~ProcessParser() {} 20 | }; 21 | 22 | -------------------------------------------------------------------------------- /NidhoggScript/RegParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class RegParser : public Parser 6 | { 7 | public: 8 | RegParser() { 9 | this->opcode = ParserOpcode::Reg; 10 | 11 | this->options[Options::Add] = { 2, {ArgType::WCharPtr, ArgType::WCharPtr} }; 12 | this->options[Options::Remove] = { 2, {ArgType::WCharPtr, ArgType::WCharPtr} }; 13 | this->options[Options::Clear] = { 0, {} }; 14 | this->options[Options::Hide] = { 2, {ArgType::WCharPtr, ArgType::WCharPtr} }; 15 | this->options[Options::Unhide] = { 2, {ArgType::WCharPtr, ArgType::WCharPtr} }; 16 | } 17 | ~RegParser() {} 18 | }; 19 | 20 | -------------------------------------------------------------------------------- /NidhoggScript/ShellcodeInjectionParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class ShellcodeInjectionParser : public Parser 6 | { 7 | public: 8 | ShellcodeInjectionParser() { 9 | this->opcode = ParserOpcode::Shinject; 10 | 11 | this->options[Options::APC] = { 6, 12 | {ArgType::ULong, ArgType::VoidPtr, ArgType::ULong, ArgType::VoidPtr, 13 | ArgType::VoidPtr, ArgType::VoidPtr} 14 | }; 15 | this->options[Options::Thread] = { 6, 16 | {ArgType::ULong, ArgType::VoidPtr, ArgType::ULong, ArgType::VoidPtr, 17 | ArgType::VoidPtr, ArgType::VoidPtr} 18 | }; 19 | } 20 | ~ShellcodeInjectionParser() {} 21 | }; 22 | 23 | -------------------------------------------------------------------------------- /NidhoggScript/ThreadParser.cpp: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Idov31/NidhoggScript/29e663b0210b396ede9a5fd27e562f9795acdf11/NidhoggScript/ThreadParser.cpp -------------------------------------------------------------------------------- /NidhoggScript/ThreadParser.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "pch.h" 3 | #include "Parser.hpp" 4 | 5 | class ThreadParser : public Parser 6 | { 7 | public: 8 | ThreadParser() { 9 | this->opcode = ParserOpcode::Thread; 10 | 11 | this->options[Options::Add] = { 1, {ArgType::ULong} }; 12 | this->options[Options::Remove] = { 1, {ArgType::ULong} }; 13 | this->options[Options::Clear] = { 0, {} }; 14 | this->options[Options::Hide] = { 1, {ArgType::ULong} }; 15 | this->options[Options::Unhide] = { 1, {ArgType::ULong} }; 16 | } 17 | ~ThreadParser() {} 18 | }; 19 | 20 | -------------------------------------------------------------------------------- /NidhoggScript/pch.cpp: -------------------------------------------------------------------------------- 1 | #include "pch.h" 2 | -------------------------------------------------------------------------------- /NidhoggScript/pch.h: -------------------------------------------------------------------------------- 1 | #pragma once 2 | 3 | #include 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # NidhoggScript 2 | 3 |

4 | Logo 5 |

6 | 7 | ![image](https://img.shields.io/badge/C%2B%2B-00599C?style=for-the-badge&logo=c%2B%2B&logoColor=white) ![image](https://img.shields.io/badge/Windows-0078D6?style=for-the-badge&logo=windows&logoColor=white) 8 | 9 | NidhoggScript is a project that allows the user to create playbooks and execute a bunch of commands with Nidhogg in one IOCTL. This project has two parts: 10 | 11 | - This repository, which is the user mode part contains the user mode "compiler" and checker to create these script files. 12 | 13 | - [Nidhogg](https://github.com/Idov31/Nidhogg) that contains the execution part. 14 | 15 | The allowed commands and detailed usage are documented in a dedicated [wiki](https://github.com/Idov31/NidhoggScript/wiki). 16 | 17 | ## Basic Usage 18 | 19 | Once you compiled the project, you can run it via CLI in two ways: 20 | 21 | ### Compiling mode 22 | 23 | Use this mode to "compile" your script, give the input file and the output directory which will be created there the `out.ndhg` file. 24 | 25 | ```sh 26 | # Example input in file.txt: 27 | # process add 3110 28 | 29 | # Run the compiler. 30 | NidhoggScript.exe C:\path\to\your\file.txt C:\path\to\folder 31 | ``` 32 | 33 | ### Validation mode 34 | 35 | Use this mode if you want to validate an edited file. If it is a file that is just generated there is no need to use this mode because "compiling" also validates the output. 36 | 37 | ```sh 38 | NidhoggScript.exe C:\path\to\your\file.ndhg 39 | ``` 40 | 41 | ## Setup 42 | 43 | To compile the project, you will need to have [Visual Studio 2022](https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=Community&rel=16) installed and then just build the project like any other Visual Studio project. 44 | -------------------------------------------------------------------------------- /images/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Idov31/NidhoggScript/29e663b0210b396ede9a5fd27e562f9795acdf11/images/logo.png --------------------------------------------------------------------------------