I was informed that these scans are no longer "stealth"
closed as off-topic by forest, Tom K., AndrolGenhald, multithr3at3d, Serge Ballesta May 9 '18 at 9:50
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions seeking product recommendations are off-topic as they become obsolete quickly. Instead, describe your situation and the specific problem you're trying to solve." – forest, AndrolGenhald, multithr3at3d
Have seen Suricata, McAfee, PAN, and TippingPoint alert and even-potentially block on things like Nmap scans, but not if Sniffjoke or similar advanced evasion technique is utilized.
There are plenty of threads, even in this forum, about modifying Nmap to get through modern IDS/IPS without being noticed. Or just use like pbscan or write your own in Python or whatever else. Metasploit-framework even does things differently. It’s mostly about Window size, pps, retries, etc.