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You Should Know:
Essential Cybersecurity Commands & Tools
1. Network Scanning with Nmap
nmap -sV -A target_ip
– -sV: Service version detection
– -A: Aggressive scan (OS detection, script scanning)
2. Log Analysis with Grep
grep "Failed password" /var/log/auth.log
– Filter failed SSH login attempts
3. Packet Capture with Tcpdump
tcpdump -i eth0 -w capture.pcap
– Capture traffic on `eth0` and save to `capture.pcap`
4. Windows Event Log Analysis
Get-WinEvent -LogName Security | Where-Object {$_.ID -eq 4625}
– Check failed login events (Event ID 4625)
5. Malware Analysis with Strings
strings suspicious_file.exe | grep "http"
– Extract URLs from a binary
6. Password Cracking with Hashcat
hashcat -m 1000 hashes.txt rockyou.txt
– Crack NTLM hashes using the RockYou wordlist
7. Linux Privilege Escalation Check
sudo -l find / -perm -4000 2>/dev/null
– List sudo permissions and SUID binaries
8. Windows Firewall Rule Check
Get-NetFirewallRule | Where-Object {$_.Enabled -eq "True"}
– List active firewall rules
9. Web Vulnerability Scanning with Nikto
nikto -h https://target_site.com
– Scan for common web vulnerabilities
10. Automating Tasks with Python
import subprocess subprocess.run(["nmap", "-sP", "192.168.1.0/24"])
– Run Nmap ping sweep via Python
What Undercode Say:
Cybersecurity analysis demands hands-on practice. Use these commands to sharpen your skills in network defense, threat hunting, and system hardening. Always operate within legal boundaries and test only on authorized systems.
Expected Output:
- Nmap scan results
- Filtered log entries
- Captured network traffic
- Extracted malware indicators
- Cracked password hashes
- Privilege escalation vectors
- Firewall rule listings
- Web vulnerability reports
- Automated task execution logs
References:
Reported By: Izzmier Book – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
