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LEMONA Linux Enhanced Monitoring Architecture

LEMONA Linux Enhanced Monitoring Architecture. Linux zest for security. Outline. Security and Forensics Forensics Computer Security Computer Forensics Related Work Lemona Project Overview Architecture References. Forensics. Short for “Forensic Science” Aims at: Collecting Evidence

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LEMONA Linux Enhanced Monitoring Architecture

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  1. LEMONALinux Enhanced Monitoring Architecture Linux zest for security

  2. Outline • Security and Forensics • Forensics • Computer Security • Computer Forensics • Related Work • Lemona • Project • Overview • Architecture • References

  3. Forensics • Short for “Forensic Science” • Aims at: • Collecting Evidence • Providing Legal Proof (used in court) • Concerned with Computers / Networks

  4. Computer Security

  5. Computer Security

  6. Computer Forensics • Memory Analysis… • Volatile Memory (i.e. RAM) • Optical Drives (i.e. CD-ROM) • Magnetic Drives (i.e. HDD, Floppies) • … but also Logs Analysis • Network • System

  7. Computer Forensics • Incomplete • Logs are not activated by default • Not everything is logged • Not all applications generate logs • Unreliable • Generated in User Land • Editable by an Attacker

  8. Outline • Security and Forensics • Forensics • Computer Security • Computer Forensics • Related Work • Lemona • Project • Overview • Architecture • References

  9. Related Work

  10. Outline • Security and Forensics • Forensics • Computer Security • Computer Forensics • Related Work • Lemona • Project • Overview • Architecture • References

  11. Lemona > Project • Open Architecture • Open Protocols • Open Source Implementation • Decentralized • Local Tracing Components • Remote Monitoring Components • Prevention, Detection, Forensics, Recovery • Possible…?

  12. Lemona > Overview • Exhaustiveness • Kernel Land Tracer  100% User Land Coverage • Integrity • Harder to bypass  Would require Kernel Level code • Integrity Checks • Flexible • Variable Granularity Levels • Selectable Hooks

  13. Lemona > Architecture Outside Attackers Storage Point Target Lemona tracestransmission ^Workflow / Hooks Architecture > Inside Attackers Forensics Tools

  14. Outline • Security and Forensics • Forensics • Computer Security • Computer Forensics • Related Work • Lemona • Project • Overview • Architecture • References

  15. References > Lemona [home]http://lemona.googlecode.com/ [blog]http://lemona-project.blogspot.com/ [wiki]http://lemona.googlecode.com/wiki/ [SCM]http://lemona.googlecode.com/svn/ [group]http://groups.google.com/group/lemona/

  16. References > Related • SARMORIA, C. G. & CHAPIN, S. J. (2005)Monitoring access to shared memory-mapped files.Proc. of the 2005 Digital Forensics Research Workshop (DFRWS). New Orleans. • GOEL, A., FENG, W. C., MAIER, D. & WALPOLE, J. (2005)Forensix: a robust, high-performance reconstruction system.Distributed Computing Systems Workshops, 2005. 25th IEEE International Conference on, 155-162. • KRISHNAKUMAR, R. (2005)Kernel korner: kprobes-a kernel debugger.Linux Journal, 2005.

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