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In the fast-paced world of cybersecurity, having the right tools can make all the difference. Whether you’re hunting threats, analyzing malware, or mapping attack surfaces, these tools can help you stay ahead.
🔹 GreyNoise – Cuts through the noise by filtering out harmless internet scans so security teams can focus on real threats.
🔹 Censys – Like Google for cybersecurity, it scans the internet to find exposed devices, open ports, and vulnerabilities.
🔹 CyberGreen – Think of it as a cybersecurity health check for the internet, helping organizations measure and reduce global cyber risks.
🔹 Hunter – A go-to tool for finding email addresses linked to a domain—useful for OSINT investigations and security research.
🔹 ANY.RUN – A hands-on malware sandbox where you can analyze suspicious files and URLs in real time.
🔹 Intelligence X – A search engine for leaked data and dark web intelligence—great for investigating breaches and exposed credentials.
🔹 Security Headers – Quickly checks if a website is using proper HTTP security headers to prevent attacks like XSS and clickjacking.
🔹 Pulsedive – A free threat intelligence platform that helps analysts track malicious IPs, domains, and URLs.
🔹 DNSDumpster – A simple but powerful reconnaissance tool for mapping an organization’s external attack surface.
🔹 SpiderFoot – Automates OSINT gathering, pulling in data from hundreds of sources to uncover threats, leaks, and vulnerabilities.
You Should Know:
1. GreyNoise – Filtering Internet Noise
- Command to Query GreyNoise API (Linux):
curl -X GET "https://api.greynoise.io/v3/community/8.8.8.8" -H "accept: application/json"
- Use Case: Identify if an IP is part of benign internet scanning or a real threat.
2. Censys – Internet-Wide Scanning
- Search for Exposed Services:
censys search "services.port: 22 AND location.country: US" --index=ipv4
- Install Censys CLI:
pip install censys
3. ANY.RUN – Malware Sandbox
- Submit a Suspicious File via API:
curl -X POST "https://api.any.run/v1/analysis" -H "Authorization: Bearer YOUR_API_KEY" -F "[email protected]"
- Analyze Behavior: Use the interactive sandbox to monitor malware execution.
4. SpiderFoot – OSINT Automation
- Run a Basic Scan:
python3 sf.py -s example.com -m all
- Installation:
git clone https://github.com/smicallef/spiderfoot.git cd spiderfoot pip3 install -r requirements.txt
5. DNSDumpster – Reconnaissance
- Alternative CLI Tool (dnsrecon):
dnsrecon -d example.com -t std,axfr,bing
- Check DNS Records:
dig example.com ANY
6. Security Headers – HTTP Security Check
- Curl Command to Check Headers:
curl -I https://example.com
- Analyze Headers for Vulnerabilities:
nmap --script http-security-headers -p 443 example.com
7. Intelligence X – Leak Search
- Search via API:
curl -X POST "https://api.intelx.io/search" -H "x-key: YOUR_API_KEY" -d '{"term":"[email protected]"}'
8. Pulsedive – Threat Intelligence
- Query Threat Indicators:
curl "https://pulsedive.com/api/info.php?indicator=malicious-domain.com"
9. Hunter – Email Discovery
- Python Script to Fetch Emails:
import requests response = requests.get("https://api.hunter.io/v2/domain-search?domain=example.com&api_key=YOUR_KEY") print(response.json())
10. CyberGreen – Risk Measurement
- Check ASN Health:
curl "https://api.cybergreen.net/v1/risk/by_asn?asn=12345"
What Undercode Say:
Cybersecurity professionals must leverage these tools to enhance threat detection and response. Automation with APIs and CLI tools (like curl
, nmap
, and dnsrecon
) improves efficiency. Always verify findings with multiple sources—combining Censys with GreyNoise reduces false positives, while ANY.RUN provides real-time malware insights. For OSINT, SpiderFoot and Hunter streamline investigations.
Bonus Commands for Cybersecurity:
- Network Traffic Analysis:
tcpdump -i eth0 -w capture.pcap
- Check Open Ports:
nmap -sV -T4 example.com
- Extract Malware Strings:
strings malware.exe | grep "http"
- Analyze SSL/TLS:
openssl s_client -connect example.com:443 | openssl x509 -text
Expected Output:
A structured cybersecurity workflow integrating these tools ensures robust defense. Start with reconnaissance (DNSDumpster), validate threats (GreyNoise), analyze malware (ANY.RUN), and track leaks (Intelligence X).
Relevant URLs:
References:
Reported By: Rohan Savani – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅