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mukul975
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Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
65 lines
1.6 KiB
Markdown
65 lines
1.6 KiB
Markdown
# API Reference: Detecting Golden Ticket Attacks in Kerberos Logs
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## Key Windows Event IDs
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| Event ID | Description | Golden Ticket Signal |
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|----------|-------------|---------------------|
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| 4768 | TGT Requested (AS-REQ) | RC4 encryption, anomalous domain |
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| 4769 | TGS Requested (TGS-REQ) | No prior 4768, forged TGT |
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| 4771 | Kerberos Pre-Auth Failed | Non-existent account (0x6) |
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## Kerberos Encryption Types
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| Code | Algorithm | Suspicion |
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|------|-----------|-----------|
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| 0x11 | AES128-CTS | Normal (modern) |
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| 0x12 | AES256-CTS | Normal (preferred) |
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| 0x17 | RC4-HMAC | Suspicious (Mimikatz default) |
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| 0x18 | RC4-HMAC-EXP | Suspicious |
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## python-evtx Usage
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```python
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import Evtx.Evtx as evtx
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with evtx.Evtx("Security.evtx") as log:
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for record in log.records():
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xml = record.xml()
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# Parse Events 4768, 4769, 4771
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# Check TicketEncryptionType, TargetUserName
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```
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## Splunk SPL Detection
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```spl
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index=wineventlog EventCode=4769
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| join type=left TargetUserName [
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search index=wineventlog EventCode=4768
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| rename TargetUserName as tgt_user
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]
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| where isnull(tgt_user)
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| table _time TargetUserName ServiceName IpAddress Computer
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```
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## KQL (Microsoft Sentinel)
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```kql
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SecurityEvent
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| where EventID == 4768
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| where TicketEncryptionType in ("0x17", "0x18")
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| where TargetUserName !endswith "$"
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| project TimeGenerated, TargetUserName, IpAddress, TicketEncryptionType
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```
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## Mimikatz Golden Ticket Command
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```
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kerberos::golden /user:admin /domain:corp.local /sid:S-1-5-21-... /krbtgt:hash /ptt
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```
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## CLI Usage
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```bash
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python agent.py --security-log Security.evtx --domain corp.local
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python agent.py --generate-sigma
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```
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