MAC-MLA 2008 Do You Really Know Who is Using Your Systems? Stephan Spitzer Lead Developer/DBA, Applied Medical Informatics James A. Zimble Learning Resource Center Stephan Spitzer Lead Developer/DBA, Applied Medical Informatics James A. Zimble Learning Resource Center U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Problem Overview “On the Internet, Nobody Knows You’re a Dog” A cartoon by Paul Steiner, which appeared in The New Yorker, July 5 th, 1993 “On the Internet, Nobody Knows You’re a Dog” A cartoon by Paul Steiner, which appeared in The New Yorker, July 5 th, 1993
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Who We Are? Uniformed Services University of the Health Sciences (USUHS) Medical education and research facility for the nation’s military and public health community Located in Bethesda, Maryland Uniformed Services University of the Health Sciences (USUHS) Medical education and research facility for the nation’s military and public health community Located in Bethesda, Maryland
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Electronic Resources (ER) Portal to over 9,000 electronic resources Services over 7,500 global users: Current students and staff Alumni Affiliate institutions Portal to over 9,000 electronic resources Services over 7,500 global users: Current students and staff Alumni Affiliate institutions
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 ER - Main Display
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Why Worry About Access? Most of our resource offerings are limited by license agreements We need to have accurate usage statistics so that we supply resources for our legitimate users Affiliate institutions pay us per user We have a large, mobile, diverse, and dispersed user population Most of our resource offerings are limited by license agreements We need to have accurate usage statistics so that we supply resources for our legitimate users Affiliate institutions pay us per user We have a large, mobile, diverse, and dispersed user population
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 First Step - Record Access Information ACTION: Each user signon date and time is saved with patron record ACTION: Each user signon date and time is saved with patron record RESULT: Inactive users can be purged from the active user database RESULT: Inactive users can be purged from the active user database ACTION: Each user access of an electronic resource is logged, including browser’s IP address ACTION: Each user access of an electronic resource is logged, including browser’s IP address RESULT: Have basis for more detailed checking RESULT: Have basis for more detailed checking
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Google Analytics - Next Step Free service gathers various usage information about web sites Simple to configure Free service gathers various usage information about web sites Simple to configure
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Google Analytics - Dashboard
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Google Anayltics - Network Detail
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 What’s Missing? We have user’s access information We have locations that accessed our resources Need to match: LOCATION <> USER We have user’s access information We have locations that accessed our resources Need to match: LOCATION <> USER
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Matching IP to Location - What Doesn’t Work (Well) Internet’s Domain Name System (DNS) Distributed database of name servers Resolve names to locations information via browserhttp://network-tools.com/ Nslookup,whois client, etc. are real- time (ie, too slow) Need something static and fast Internet’s Domain Name System (DNS) Distributed database of name servers Resolve names to locations information via browserhttp://network-tools.com/ Nslookup,whois client, etc. are real- time (ie, too slow) Need something static and fast
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 GeoLite City - The Missing Link Open Source (free) database of geographic information Maps IP to City/Country, world- wide Self-contained database Simple API available for most programming languages Open Source (free) database of geographic information Maps IP to City/Country, world- wide Self-contained database Simple API available for most programming languages
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Putting It All Together Wrote PHP script to query MySQL access logs and call GeoCity API to get user locations Find each patron access within a timeframe and list where and when they accessed our resources Wrote PHP script to query MySQL access logs and call GeoCity API to get user locations Find each patron access within a timeframe and list where and when they accessed our resources
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Suspicious Activity Odd Locations Siberia?; Philippines? “Excessive” Usage Access 24x7; lots of access in short timeframes; consistent high access Impossible Geographic/Timeframe Usage Different cities/countries/continents in same day/hour Odd Locations Siberia?; Philippines? “Excessive” Usage Access 24x7; lots of access in short timeframes; consistent high access Impossible Geographic/Timeframe Usage Different cities/countries/continents in same day/hour
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Example - Odd Location Found our Siberian user:
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Example - “Excessive” Usage This is one user for one day:
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Example - Impossible Geography Two Users - Two Stories: Legitimate Problematic Two Users - Two Stories: Legitimate Problematic
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Findings Site/Organization utilizes proxies Account info left in browser Explicit sharing of account Account compromised Site/Organization utilizes proxies Account info left in browser Explicit sharing of account Account compromised
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Access Results Apr30,52638, take user access actions Apr30,52638, take user access actions --- May28,46932,003 June29,43925,656 July31,74730,935
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Follow-Up ”Doveryai, No Proveryai” (Trust, but Verify) Re-run script periodically to check compliance ”Doveryai, No Proveryai” (Trust, but Verify) Re-run script periodically to check compliance
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Resources Google Analytics GeoLite City ty This Presentation MLA2008_Spitzer.pps My Contact Information Google Analytics GeoLite City ty This Presentation MLA2008_Spitzer.pps My Contact Information
U NIFORMED S ERVICES U NIVERSITY of the Health Sciences James A. Zimble Learning Resource Center MAC-MLA 2008 Questions?