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SIEM (Security Information and Event Management) is crucial for Security Operations Centers (SOCs) as it helps monitor, detect, and respond to security threats by aggregating and analyzing data from multiple sources. Below are valuable resources to master SIEM tools and techniques.
General SIEM Resources
📎 Windows Logging Basics
📎 Jose Bravo – What is a SIEM? (5 Videos)
📎 PowerSIEM Analyzing Sysmon Events with PowerShell
QRadar
📎 Jose Bravo – QRadar (38 Videos)
📎 QRadar 101
📎 QRadar SIEM Foundation
📎 Ariel Query Language Guide
Splunk
📎 Course Catalog
📎 Basic Searching
📎 Practical Splunk – Zero to Hero
📎 Splunk Use Cases
📎 Exploring Splunk
Microsoft Sentinel
📎 What is Microsoft Sentinel
📎 Microsoft Sentinel Level 400 Training
📎 SOC 101
FortiSIEM
AlienVault OSSIM
Elastic SIEM
📎 Fundamentals
📎 Manual
ArcSight
📎 Paul Brettle – What is Series
📎 Paul Brettle – ArcSight ESM 101
📎 ArcSight Tutorial
SureLogSIEM Training
📎 Training (English)
📎 Training (Turkish)
📎 Training PDF
📎 User Guide PDF
LogSign
You Should Know: Essential SIEM Commands & Practices
Linux Log Analysis (SIEM-Relevant Commands)
<h1>Monitor auth logs for failed login attempts</h1>
grep "Failed password" /var/log/auth.log
<h1>Check SSH brute-force attacks</h1>
journalctl -u sshd | grep "Failed password"
<h1>Analyze syslog in real-time</h1>
tail -f /var/log/syslog
<h1>Extract IPs from logs for threat intel</h1>
awk '{print $1}' /var/log/nginx/access.log | sort | uniq -c | sort -nr
#### **Windows Event Logs (PowerShell)**
<h1>Get failed login events</h1>
Get-WinEvent -FilterHashtable @{LogName='Security'; ID=4625}
<h1>Extract suspicious process executions</h1>
Get-WinEvent -LogName "Microsoft-Windows-Sysmon/Operational" | Where-Object {$_.ID -eq 1}
<h1>Monitor PowerShell script block logs (for malicious scripts)</h1>
Get-WinEvent -LogName "Microsoft-Windows-PowerShell/Operational" | Where-Object {$_.ID -eq 4104}
#### **Splunk Search Queries**
<h1>Detect brute-force attacks</h1> index=windows EventCode=4625 | stats count by src_ip <h1>Find unusual process executions</h1> index=sysmon EventID=1 | table _time, host, Image, CommandLine <h1>Track file modifications in critical directories</h1> index=sysmon EventID=11 (TargetFilename="C:\Windows\<em>" OR TargetFilename="C:\Program Files\</em>")
#### **Elastic SIEM (KQL Examples)**
<h1>Detect suspicious network connections</h1> event.category:network AND destination.ip:(192.168.1.100 OR 10.0.0.1) <h1>Identify ransomware activity (mass file encryption)</h1> file where event.action: "deleted" or "modified" by process.name: "cmd.exe"
### **What Undercode Say**
SIEM tools are vital for real-time threat detection, but mastery requires hands-on practice. Always:
– Correlate logs (combine firewall, endpoint, and IDS logs).
– Tune alerts to reduce false positives.
– Automate responses (e.g., block IPs via firewall API).
– Stay updated with MITRE ATT&CK tactics.
**Expected Output:**
[SIEM Alert] Brute-Force Attack Detected from IP: 192.168.1.15 [Action] Auto-blocked via Firewall Rule.
References:
Reported By: Alexrweyemamu %F0%9D%97%99%F0%9D%97%BF%F0%9D%97%B2%F0%9D%97%B2 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
