Bypassing Network Security: Evading IDSs, Honeypots, and Firewalls.

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Presentation transcript:

Bypassing Network Security: Evading IDSs, Honeypots, and Firewalls

 IDS vs IPS  Use packet sniffers  Host Based vs Network Based  Signature Based vs Anomaly Based

 Bypassing an IDS  Change the traffic (eg: HTTP instead of ICMP)  Session Splicing  Inserting extra data  Obfuscating addresses  Use encryption  Session hijacking

 ADMutate  Rewrites a script  Snort  Real-time packet sniffer  HIDS  traffic-logging tool  Both Linux and Windows

 Firewalls: Hardware vs Software  Honeypots  Specter, KFSensor, Nessus  Bypassing honeypots  Reverse www shell  Compromise an internal system that connects via port 80 to hacker’s system  Use anti-honeypot software to warn of honeypot systems

 Honeypot Study Guide:  ts/study.php ts/study.php