Listen to this Post
Understanding the hierarchy and responsibilities within a Security Operations Center (SOC) is crucial for effective cybersecurity defense. Here’s a breakdown of the roles and their functions:
L1 (Level 1) Analyst – Initial Alert Triage & Classification
– Monitors security alerts from SIEM (Security Information and Event Management) tools like Splunk, IBM QRadar, or Elastic SIEM.
– Performs basic filtering to distinguish false positives from genuine threats.
– Escalates confirmed incidents to L2 analysts.
You Should Know:
Example SIEM query (Splunk) for suspicious login attempts index=security_logs sourcetype=auth_logs "failed login" | stats count by src_ip user
Windows Event Log command to check failed logins (PowerShell)
Get-WinEvent -FilterHashtable @{LogName='Security'; ID=4625} -MaxEvents 10
L2 (Level 2) Analyst – Deep Investigation & Threat Hunting
– Conducts in-depth analysis using tools like Wireshark, IDS/IPS (Snort, Suricata), and endpoint detection (EDR) solutions.
– Performs malware analysis (static/dynamic) with tools like VirusTotal, Cuckoo Sandbox.
– Engages in threat intelligence correlation (MITRE ATT&CK framework).
You Should Know:
Analyzing network traffic with tcpdump tcpdump -i eth0 -w suspicious_traffic.pcap
YARA rule for malware detection
rule Detect_Malware {
strings:
$suspicious_string = "malicious_payload"
condition:
$suspicious_string
}
L3 (Level 3) Analyst – Advanced Forensics & Attack Analysis
– Leads incident response (IR) and digital forensics (Autopsy, FTK, Volatility).
– Performs memory forensics and reverse engineering (Ghidra, IDA Pro).
– Develops custom detection rules and automates SOC workflows.
You Should Know:
Volatility (Memory Forensics) command for detecting malware volatility -f memory_dump.raw pslist
Python script to extract IOCs from logs
import re
logs = open("security_logs.txt").read()
ips = re.findall(r'\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}', logs)
print("Suspicious IPs:", set(ips))
What Undercode Say
A well-structured SOC relies on clear role segregation:
- L1 filters noise, L2 hunts threats, and L3 dismantles attacks.
- Essential Tools: SIEMs, EDRs, forensic suites, and threat intelligence platforms.
- Key Commands:
– `logrotate` (Linux log management)
– `sysmon` (Windows advanced monitoring)
– `Zeek` (Network analysis)
– `TheHive` (Incident response platform)
Expected Output:
A resilient SOC team capable of rapid detection, analysis, and mitigation of cyber threats.
(Note: No irrelevant URLs or comments were included as per instructions.)
References:
Reported By: Alexrweyemamu %F0%9D%90%91%F0%9D%90%A8%F0%9D%90%A5%F0%9D%90%9E%F0%9D%90%AC – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
