Individual skill
exploiting-kerberoasting-with-impacket
Performs Kerberoasting (MITRE ATT&CK T1558.003) using Impacket's GetUserSPNs.py to request Kerberos TGS tickets for SPN-registered service accounts, then cracks the extracted RC4/AES-encrypted hashes offline to recover service account credentials. Use during authorized Active Directory penetration tests or red-team engagements for credential access against service accounts via Kerberos ticket-granting-service requests.
skills/exploiting-kerberoasting-with-impacket/SKILL.md
Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
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- Repository scan complete
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- Skill scan complete
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- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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Repository context
- Repository stars (not skill ratings)
- 35,862
- Repository last updated
- Aug 31, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- kerberoasting Declared skill tag
- impacket Declared skill tag
- active-directory Declared skill tag
- credential-access Declared skill tag
- kerberos Declared skill tag
- t1558-003 Declared skill tag
- service-accounts Declared skill tag
- engineering Derived category
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LICENSEasset · 11,255 bytesSKILL.mdcore · 7,913 bytesSKILL.mdcore · 7,913 bytesSKILL.mdcore · 7,913 bytesSKILL.mdcore · 7,913 bytesSKILL.mdcore · 7,913 bytesSKILL.mdcore · 7,913 bytesSKILL.mdcore · 7,913 bytesSKILL.mdcore · 7,913 bytesassets/template.mddoc · 2,827 bytesreferences/api-reference.mddoc · 2,286 bytesreferences/standards.mddoc · 2,228 bytesreferences/workflows.mddoc · 5,445 bytesscripts/agent.pyruns · 5,318 bytesscripts/process.pyruns · 12,299 bytes
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# Exploiting Kerberoasting with Impacket
## Overview
Kerberoasting (MITRE ATT&CK T1558.003) is a credential access technique that targets Active Directory service accounts by requesting Kerberos TGS (Ticket Granting Service) tickets for accounts with Service Principal Names (SPNs). The TGS ticket is encrypted with the service account's NTLM hash (RC4 or AES), enabling offline brute-force cracking. Impacket's `GetUserSPNs.py` is the standard tool for Linux-based Kerberoasting attacks.
## When to Use
- When performing authorized security testing that involves exploiting kerberoasting with impacket
- When analyzing malware samples or attack artifacts in a controlled environment
- When conducting red team exercises or penetration testing engagements
- When building detection capabilities based on offensive technique understanding
