← foyl Learn / foyl Red / Techniques / Credential Access
TA0006 · ATT&CK Tactic
Credential Access
Steal valid credentials to escalate access. Run the attack on the left — see exactly what the defender sees on the right, including alert JSON and live tool links.
2 techniques
T1110.003 Password Spraying

Spray a single password across many accounts to avoid lockout thresholds. Industry standard: rockyou.txt because it's derived from real breached passwords — common corporate passwords appear in the top 10,000 entries.

Attack Simulation Step 1 / 3
# Step 1: Select wordlist for spray Industry standard for corporate environments?
Wrong — that list is too small or too obvious. Lockout thresholds will catch you. Use rockyou.txt.
SIEM Alert — High
Foyl SIEM · ALT-2024-8847 HIGH
"rule": "Multiple Failed Logon — Spray Pattern",
"event_id": 4625,
"source_ip": "185.220.101.42",
"accounts_targeted": 29,
"timespan_minutes": 3,
"single_password": true,
"threshold_exceeded": true,
"target_hit": "priya.khatri",
"credential_compromised": true
T1558.003 Kerberoasting

Request Kerberos service tickets for accounts with SPNs, extract RC4 hashes, crack offline. No elevated privileges needed — any domain user can request service tickets. Service accounts often have weak passwords and never expire.

Attack Simulation Ready
# Enumerate SPNs and request service tickets attacker@kali:~/impacket$
$
SIEM Alert — Medium
Foyl SIEM · ALT-2024-9102 MEDIUM
"rule": "Kerberos TGS Request — RC4 Downgrade",
"event_id": 4769,
"ticket_encryption": "RC4-HMAC (0x17)",
"requested_by": "svc_backup",
"source_ip": "185.220.101.42",
"spns_enumerated": 3,
"rc4_downgrade_detected": true,
"note": "Modern clients use AES — RC4 is a roastable indicator"