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Honeypot &Honeynet Sina ManaviManavi.Sina@gmail.com
Content• What is Honeypot• What is Honeynet• Advantages and Disadvantages of Honeypot/net
Definition of Honeypot:• A Honeypot is an information system resource whose value lies in unauthorized or illicit use of that resource. - Lance Spitzner
Honeypots value:• Prevention prevent automated attacks:(Warms and auto-rooters)• Detection identify a failure or breakdown in prevention• Response
How Honeypot works: Prevent DetectResponse No connection Attackers Attack Data HoneyPot A Gateway
Honeypot can be placed: In front of the firewall (Internet) DMZ (DeMilitarized Zone) Behind the firewall (intranet)
Honeypot Classification:By Implementation • Virtual • PhysicalBy purpose • Production • ResearchBy level of interaction • High • Low • Middle?
Implementation of Honeypot Physical • Real machines • Own IP Addresses • Often high-interactive Virtual • Simulated by other machines that: – Respond to the traffic sent to the honeypots – May simulate a lot of (different) virtual honeypots at the same time
Physical Honeypot vs. Virtual Honeypot• PH (Real machines, NICs, typically high-interaction) – High maintenance cost. – Impractical for large address spaces.• VH (Simulated by other machines) – Multiple virtual services and VMs on one machine. – Typically it only simulate network level interactions, but still able to capture intrusion attempts.
Propose of Honeypot:Research Complex to deploy and maintain. Captures extensive information. Run by a volunteer(non-profit). Used to research the threats organization face.Production Easy to use Capture only limited information Used by companies or corporations Mitigates risks in organization
Interaction Level: • Low Interaction • High InteractionNote: Interaction measures the amount of activity an attackercan have with a honeypot.
Low Interaction vs. High Interaction Low-Interaction High-Interaction Installation Easy More difficult Maintenance Easy Time consuming Risk Low High Need Control No YesData gathering Limited Extensive Interaction Emulated services Full control
Example of Honeypots:• Symantec Decoy Server (ManTrap) High Interaction• Honeynets• Nepenthes• Honeyd – (Vitrual honeypot)• KFSensor• BackOfficer Friendly Low Interaction
Honeynet History:• Informally began in April 1999• The Honeynet Project officially formed in June 2000• Became a non-profit corporation in September 2001.• Is made up of thirty Volunteer security professionals
What is a Honeynet?• Actual network of computers• High-interaction honeypot• Its an architecture, not a product• Provides real systems, applications, and services for attackers to interact with.• Any traffic entering or leaving is suspect”.
How the Honeynet works?• Monitoring, capturing, and analyzing all the packets entering or leaving through networks.• All the traffic is entering or leaving through the Honeynet is naturally suspect.
Honeynet Evolution• 1997, DTK (Deception Toolkit)• 1999, a single sacricial computer,• 2000, Generation I Honeynet,• 2003, Generation II Honeynet,• 2003, Honeyd software• 2004, Distributed Honeynets, Malware Collector...• 2009, Dionaea (multi stage payloads, SIP,...) Kojoney, Kippo
Architecture Requirements:• Data Control• Data Capture
Data Control of the Honeynet No Restrictions Honeypot Internet No Restrictions Honeypot No Restrictions Honeypot Internet Honeywall Connections Limited Packet Scrubbed Honeypot
Honeynet Generations:• Gen I: – Simple Methodology, Limited Capability – Highly effective at detecting automated attacks – Use Reverse Firewall for Data Control – Can be fingerprinted by a skilled hacker – Runs at OSI Layer 3• Gen II: – More Complex to Deploy and Maintain – Examine Outbound Data and make determination to block, pass, or modify data – Runs at OSI Layer 2
Advantages and Disadvantages of Honeynet/potsAdvantages : Honeypots are focused (small data sets) Honeypots help to reduce false positive Honeypots help to catch unknown attacks (false negative) Honeypots can capture encrypted activity (cf. Sebek) Honeypots work with IPv6 Honeypots are very flexible (advantage/disadvantage?) Honeypots require minimal resourcesDisadvantages : Honeypots field of view limited (focused) Risk,