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API Reference — Performing Hash Cracking with Hashcat

Libraries Used

  • subprocess: Execute hashcat with various attack modes
  • hashlib: Generate test hashes (MD5, SHA1, SHA256, SHA512)
  • re: Pattern matching for hash type identification
  • pathlib: Read hash files and potfiles

CLI Interface

python agent.py identify --hash <hash_string>
python agent.py identify --file hashes.txt
python agent.py crack --hash-file hashes.txt --mode 0 --attack dictionary --wordlist rockyou.txt [--rules best64.rule]
python agent.py crack --hash-file hashes.txt --mode 1000 --attack brute --mask "?u?l?l?l?d?d?d?s"
python agent.py parse --potfile hashcat.potfile
python agent.py gen --text "password123" --algo sha256

Core Functions

identify_hash(hash_string) — Detect hash type and hashcat mode

Matches against 12 patterns: MD5 (0), SHA1 (100), SHA256 (1400), SHA512 (1700), NTLM (1000), bcrypt (3200), sha512crypt (1800), md5crypt (500), NetNTLMv2 (5600), Kerberos TGS (13100), Kerberos AS-REP (18200).

run_hashcat(hash_file, mode, attack, wordlist, rules, mask) — Execute hashcat

Attack modes: dictionary (-a 0), brute (-a 3), combinator (-a 1).

parse_hashcat_status(potfile) — Analyze cracked passwords

Returns length distribution, charset analysis, top passwords from potfile.

generate_hash(plaintext, algorithm) — Create test hashes

Supported: md5, sha1, sha256, sha512.

Hashcat Mask Charsets

  • ?l lowercase, ?u uppercase, ?d digits, ?s special, ?a all

Dependencies

System: hashcat (GPU-accelerated hash cracking) No Python packages required — standard library only.