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DarkSide Ransomware ID Generation
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| import zlib, sys | |
| def get_id(mac): | |
| mac = int(mac, 16).to_bytes(6, 'big') | |
| return checksum(mac, True) | |
| def checksum(input, compression=False): | |
| v3 = zlib.crc32(input, 0xDEADBEEF) | |
| v4 = zlib.crc32(input, v3) | |
| v5 = zlib.crc32(input, v4) | |
| v6 = zlib.crc32(input, v5) | |
| v7 = zlib.crc32(input, v6) | |
| v8 = v4.to_bytes(4, 'little') + v5.to_bytes(4, 'little') + v6.to_bytes(4, 'little') + v7.to_bytes(4, 'little') | |
| if not compression: | |
| return v8.hex() | |
| v9 = bytearray(8) | |
| for i in range(8): | |
| v9[i] = v8[i] ^ v8[i + 8] | |
| ret = bytearray(4) | |
| for i in range(4): | |
| ret[i] = v9[i] ^ v9[i + 4] | |
| return ret.hex() | |
| print(gen_id(sys.argv[1])) |
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