SOC Analyst Study Notes

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A SOC (Security Operations Center) Analyst plays a critical role in monitoring, detecting, and responding to cybersecurity threats. Below is a detailed guide with essential concepts, tools, and commands to help aspiring SOC analysts.

You Should Know:

1. Key Responsibilities of a SOC Analyst

  • Monitor security alerts and logs.
  • Investigate potential security incidents.
  • Perform threat hunting and vulnerability assessments.
  • Respond to and mitigate cyber threats.
  • Document incidents and generate reports.

2. Essential SOC Tools

  • SIEM (Security Information and Event Management): Splunk, IBM QRadar, ArcSight
  • EDR (Endpoint Detection and Response): CrowdStrike, SentinelOne, Carbon Black
  • IDS/IPS (Intrusion Detection/Prevention Systems): Snort, Suricata
  • Threat Intelligence Platforms: MISP, ThreatConnect
  • Forensic Tools: Autopsy, Volatility, FTK

3. Important Linux Commands for SOC Analysts

 Log Analysis 
grep "Failed password" /var/log/auth.log  Find failed SSH attempts 
journalctl -u sshd --no-pager  Check SSH service logs

Network Analysis 
tcpdump -i eth0 'port 80'  Capture HTTP traffic 
netstat -tuln  List active connections

Process Monitoring 
ps aux | grep "suspicious_process"  Find running processes 
lsof -i :22  Check which process uses port 22

File Integrity Checks 
md5sum /etc/passwd  Verify file integrity 
find / -perm -4000 -type f 2>/dev/null  Find SUID files 

4. Windows Commands for Incident Response

 Log Analysis 
Get-WinEvent -FilterHashtable @{LogName='Security'; ID=4625}  Failed login attempts

Network Analysis 
netstat -ano  List active connections with PIDs 
tasklist /svc  List running processes and services

System Information 
systeminfo  Display OS and hardware details 
wmic qfe list  List installed patches

Malware Detection 
sigcheck -u -e C:\Windows\System32  Check unsigned executables 

5. SOC Workflow Example

  1. Alert Triage: Analyze SIEM alerts for false positives.
  2. Investigation: Use logs, network data, and endpoint analysis.

3. Containment: Isolate affected systems.

4. Eradication: Remove malware or close vulnerabilities.

5. Recovery: Restore systems securely.

6. Reporting: Document findings and suggest improvements.

What Undercode Say

A SOC analyst must master log analysis, threat detection, and incident response. Automation (using scripts in Python/Bash) helps in handling repetitive tasks. Continuous learning on platforms like Cybrary, Hack The Box, and TryHackMe is crucial.

Additional Resources:

Expected Output:

A structured SOC study guide with practical commands, tools, and workflows for cybersecurity professionals.

(Note: If the original article had non-cyber/IT content, the response would have been a single random word.)

References:

Reported By: Dharamveer Prasad – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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