Basics of Splunk
- Splunk SIEM Crash Course: https://lnkd.in/dhQ4C7DW
- Splunk Cheat Sheet: https://lnkd.in/d-H-d2hT
Lab Setup
- Splunk Lab Setup: https://lnkd.in/dhQ4C7DW
- Sample DNS Log File: https://lnkd.in/dUivkDM4
- Sample HTTP Log File: https://lnkd.in/dFxTC5eZ
Log Analysis with Splunk
- Analyzing DNS Logs: https://lnkd.in/dEwBhpPn
- Analyzing FTP Logs: https://lnkd.in/daEczqGK
- Analyzing HTTP Logs: https://lnkd.in/dhhGDSpi
Threat Detection
- Creating Correlation Alerts: https://lnkd.in/dTqtwqWR
- Detection & Playbook Example: https://lnkd.in/dqyF-q-d
Security Investigation
- Scenario-Based Investigation: https://lnkd.in/dmqeTcxH
Threat Hunting
- Splunk Queries for Hunters: https://lnkd.in/dKceHfjw
- Official Splunk Hunting Tutorial: https://lnkd.in/dZ8AhHXN
You Should Know: Practical Splunk Commands & Techniques
1. Basic Splunk Commands
Search logs for a specific term index=main "failed login" Filter by source type sourcetype=linux_secure Time-range filtering earliest=-24h latest=now Count events by field | stats count by src_ip
2. Log Parsing with SPL (Splunk Processing Language)
Extract fields using regex | rex field=_raw "user=(?<username>\w+)" Filter HTTP status codes sourcetype=access_ status_code=500 Group and sort results | top limit=10 uri_path
3. Threat Detection Queries
Detect brute-force attacks index=firewall "failed password" | stats count by src_ip | where count > 5 Find unusual process executions index=windows EventCode=4688 | search "cmd.exe /c powershell"
4. Threat Hunting with Splunk
Hunt for suspicious DNS queries index=dns query=exe | stats count by query Detect lateral movement index=wineventlog EventCode=4624 Logon_Type=3 | stats count by src_ip, dest_host
5. Automating Alerts
Create a scheduled alert | savedsearch "Brute Force Attempts" | where count > 10 | sendemail [email protected]
What Undercode Say
Splunk is a powerful SIEM tool for log analysis, threat detection, and incident response. Mastering SPL (Splunk Processing Language) and understanding log sources (DNS, HTTP, Windows Event Logs) are essential for cybersecurity professionals. Automation through alerts and dashboards enhances SOC efficiency.
Expected Output:
- A structured Splunk lab environment.
- Ability to write custom SPL queries.
- Detection of real-world attack patterns.
Prediction
Splunk will continue dominating SIEM solutions, with increased AI-driven anomaly detection and automated response integrations.
(Note: Removed non-cyber URLs and comments as requested.)
References:
Reported By: Ouardi Mohamed – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
