/*************************************************************************************************** Zyan Disassembler Engine Version 1.0 Remarks : Freeware, Copyright must be included Original Author : Florian Bernd Modifications : Joel Höner * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. ***************************************************************************************************/ #include #include #include #include void PrintZydisError() { puts("Zydis error: "); switch (ZydisGetLastError()) { case ZYDIS_ERROR_SUCCESS: puts("success"); break; case ZYDIS_ERROR_UNKNOWN: puts("unknown error"); break; case ZYDIS_ERROR_NOT_ENOUGH_MEMORY: puts("not enough memory"); break; case ZYDIS_ERROR_INVALID_PARAMETER: puts("invalid parameter"); break; } } int main() { uint8_t data32[] = { 0x8B, 0xFF, 0x55, 0x8B, 0xEC, 0x6A, 0xFE, 0x68, 0xD8, 0x18, 0x09, 0x77, 0x68, 0x85, 0xD2, 0x09, 0x77, 0x64, 0xA1, 0x00, 0x00, 0x00, 0x00, 0x50, 0x83, 0xEC, 0x14, 0x53, 0x56, 0x57, 0xA1, 0x68, 0xEE, 0x13, 0x77, 0x31, 0x45, 0xF8, 0x33, 0xC5, 0x50, 0x8D, 0x45, 0xF0, 0x64, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x89, 0x65, 0xE8, 0xC7, 0x45, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x8B, 0x5D, 0x08, 0xF6, 0xC3, 0x04, 0x0F, 0x85, 0x57, 0x74, 0x00, 0x00, 0x53, 0x6A, 0x00, 0xFF, 0x35, 0xA0, 0xE3, 0x13, 0x77, 0xFF, 0x15, 0x00, 0x10, 0x14, 0x77, 0x85, 0xC0, 0x0F, 0x84, 0xC6, 0x48, 0x04, 0x00, 0xC7, 0x45, 0x08, 0x00, 0x00, 0x00, 0x00, 0xC7, 0x45, 0xFC, 0xFE, 0xFF, 0xFF, 0xFF, 0x33, 0xC0, 0x8B, 0x4D, 0xF0, 0x64, 0x89, 0x0D, 0x00, 0x00, 0x00, 0x00, 0x59, 0x5F, 0x5E, 0x5B, 0x8B, 0xE5, 0x5D, 0xC2, 0x04, 0x00 }; uint8_t data64[] = { 0x48, 0x89, 0x5C, 0x24, 0x10, 0x48, 0x89, 0x74, 0x24, 0x18, 0x89, 0x4C, 0x24, 0x08, 0x57, 0x41, 0x54, 0x41, 0x55, 0x41, 0x56, 0x41, 0x57, 0x48, 0x83, 0xEC, 0x40, 0x4C, 0x8B, 0xF2, 0x8B, 0xD9, 0x48, 0xC7, 0x44, 0x24, 0x20, 0x00, 0x00, 0x00, 0x00, 0x33, 0xF6, 0x48, 0x89, 0x74, 0x24, 0x30, 0x45, 0x33, 0xFF, 0xF7, 0xC1, 0x8D, 0xF0, 0xFF, 0xFF, 0x0F, 0x85, 0xAA, 0x53, 0x08, 0x00, 0xF6, 0xC1, 0x40, 0x8B, 0xFE, 0x41, 0xBD, 0x08, 0x00, 0x00, 0x00, 0x41, 0x0F, 0x45, 0xFD, 0xF6, 0xC1, 0x02, 0x48, 0x8B, 0x0D, 0x10, 0xD4, 0x0E, 0x00, 0x0F, 0x85, 0x40, 0xE1, 0x01, 0x00, 0x8B, 0x15, 0x4C, 0xD5, 0x0E, 0x00, 0x81, 0xC2, 0x00, 0x00, 0x14, 0x00, 0x0B, 0xD7, 0x4D, 0x8B, 0xC6, 0xFF, 0x15, 0x3B, 0x2F, 0x10, 0x00, 0x48, 0x8B, 0xD8, 0x48, 0x85, 0xC0, 0x0F, 0x84, 0x93, 0x78, 0x0A, 0x00, 0x48, 0x8B, 0xC3, 0x48, 0x8B, 0x5C, 0x24, 0x78, 0x48, 0x8B, 0xB4, 0x24, 0x80, 0x00, 0x00, 0x00, 0x48, 0x83, 0xC4, 0x40, 0x41, 0x5F, 0x41, 0x5E, 0x41, 0x5D, 0x41, 0x5C, 0x5F, 0xC3 }; ZydisInstructionInfo info; ZydisInstructionDecoderContext* decoder = NULL; ZydisInstructionFormatterContext* formatter = NULL; ZydisInputContext* input32 = NULL; ZydisInputContext* input64 = NULL; // Create decoder and formatter instances decoder = ZydisCreateInstructionDecoder(); if (!decoder) { goto ZydisError; } formatter = ZydisCreateIntelInstructionFormatter(); if (!formatter) { goto FreeZydisDecoder; } // Create memory data sources input32 = ZydisCreateMemoryInput(&data32[0], sizeof(data32)); if (!input32) { goto FreeZydisFormatter; } input64 = ZydisCreateMemoryInput(&data64[0], sizeof(data64)); if (!input64) { goto FreeZydisInput32; } // Set decoder properties ZydisSetDisassemblerMode(decoder, ZYDIS_DM_M32BIT); ZydisSetDataSource(decoder, input32); ZydisSetInstructionPointer(decoder, 0x77091852); // Decode and format all instructions puts("32 bit test ...\n\n"); while (ZydisDecodeInstruction(decoder, &info)) { printf("%08X ", (uint32_t)(info.instrAddress & 0xFFFFFFFF)); if (info.flags & ZYDIS_IF_ERROR_MASK) { printf("db %02X\n", info.data[0]); } else { const char* instructionText; if (!ZydisFormatInstruction(formatter, &info, &instructionText)) { goto FreeZydisInput64; } printf("%s\n", instructionText); } } // Check if an error occured in ZydisDecodeInstruction or the end of the input was reached. if (ZydisGetLastError() != ZYDIS_ERROR_SUCCESS) { goto FreeZydisInput64; } puts("\n"); // Set decoder properties ZydisSetDisassemblerMode(decoder, ZYDIS_DM_M64BIT); ZydisSetDataSource(decoder, input64); ZydisSetInstructionPointer(decoder, 0x00007FFA39A81930ull); // Decode and format all instructions puts("64 bit test ...\n\n"); while (ZydisDecodeInstruction(decoder, &info)) { printf("%016"PRIX64" ", info.instrAddress); if (info.flags & ZYDIS_IF_ERROR_MASK) { printf("db %02X", info.data[0]); } else { const char* instructionText; if (!ZydisFormatInstruction(formatter, &info, &instructionText)) { goto FreeZydisInput64; } printf("%s\n", instructionText); } } // Check if an error occured in ZydisDecodeInstruction or the end of the input was reached. if (ZydisGetLastError() != ZYDIS_ERROR_SUCCESS) { goto FreeZydisInput64; } // Cleanup code FreeZydisInput64: ZydisFreeInput(input64); FreeZydisInput32: ZydisFreeInput(input32); FreeZydisFormatter: ZydisFreeInstructionFormatter(formatter); FreeZydisDecoder: ZydisFreeInstructionDecoder(decoder); ZydisError: if (ZydisGetLastError() != ZYDIS_ERROR_SUCCESS) { PrintZydisError(); getchar(); return 1; } getchar(); return 0; }