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nsa smartphones analysis .pdf



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TOP SECRET//COMINT/REL TO USA, FVEY

(U) Converged Analysis of
Smartphone Devices
Identification/Processing/Tasking –
All in a day’s work
Paula Kuruc, NSA
May 2010

1
TOP SECRET//COMINT/REL TO USA, FVEY

TOP SECRET//COMINT/REL TO USA, FVEY

Smartphone
Converged mobile devices
offering advanced capabilities,
often with PC-like
functionality. No set industry
standard definition.
Boasts powerful processors,
memory, larger screens and
open operating systems.
TOP SECRET//COMINT/REL TO USA, FVEY

2

TOP SECRET//COMINT/REL TO USA, FVEY

Economics of Transportation
!  The gradual “blurring” of
telecommunications, computers, and the
Internet
!  Multifaceted layering technologies
!  Examples of convergence in SIGINT:
"  Blackberry, iPhone data, Smartphones
"  VOIP
"  Wireless Local Loop
"  GPRS – General Packet Radio Service

TOP SECRET//COMINT/REL TO USA, FVEY

3

TOP SECRET//COMINT/REL TO USA, FVEY

SmartPhone Applications
!  Visual Communicator – Free application that
combines Instant Messaging, Photo-Messaging
and Push2Talk capabilities on a mobile
platform. VC used on GPRS or 3G networks;
heavily used in AQI Mosul Network
!  Symbian Operating System supporting
encryption programs.
!  WinZip, compression and encryption program.

TOP SECRET//COMINT/REL TO USA, FVEY

4

TOP SECRET//COMINT/REL TO USA, FVEY

Usage/Features
!  Social Networking via Flixster
Social Networking site allowing users to share
movie ratings, discover new movies and meet
others with similar movie taste.
!  Google Maps features
!  Photo capture and editing capabilities
!  Phone settings
!  Mobile Facebook Apps (iPhone/Android)

TOP SECRET//COMINT/REL TO USA, FVEY

6

TOP SECRET//COMINT/REL TO USA, FVEY

Location Based Services
Where is the target?
! 
! 
! 
! 

GPRS Dataset – breaking down barriers
Providers catering to users based on location
Android Phones pass GPS data in the clear
No longer DNI/DNR

TOP SECRET//COMINT/REL TO USA, FVEY

7

TOP SECRET//COMINT/REL TO USA, FVEY

Taking a Closer Look
Photo Capture Software !  iPhone Geotags for Photos
Raw tags coming through from a variety of
devices
!  Flixster App uses GPRS
!  Flickr/Photobucket
!  Mobile Facebook Apps Uploads

TOP SECRET//COMINT/REL TO USA, FVEY

8

TOP SECRET//COMINT/REL TO USA, FVEY

Processing
All in the Metadata, not the pretty pictures
!  Unique applications require unique analysis
!  GPS Indicators (sent to the server and towers
for both phone and application)
!  VoIP Indicators (multiple services)
!  Type of Phone and Apps

TOP SECRET//COMINT/REL TO USA, FVEY

9

TOP SECRET//COMINT/REL TO USA, FVEY

Identification via Xkeyscore
!  Make use of fingerprints in Xkeyscore via the
EXIF metadata plugin
!  Fingerprints for images (jpeg, tiff, gifs etc.)
!  Examine the raw XML
!  Provides device and time/location for the image
fingerprint('image/exif/gpsCoordinates') =
file_ext('jpeg' or 'pjpeg' or 'jpg' or 'pjpg' or 'tiff' or 'gif' or 'png' or 'riff' or
'wav') and
'exif:GPSLatitude' or 'exif:GPSLongitude' or 'exif:GPSDestLatitude' or
'exif:GPSDestLongitude';

TOP SECRET//COMINT/REL TO USA, FVEY

10

TOP SECRET//COMINT/REL TO USA, FVEY

Golden Nugget!
Perfect Scenario – Target uploading
photo to a social media site taken
with a mobile device.
What can we get?

TOP SECRET//COMINT/REL TO USA, FVEY

11

TOP SECRET//COMINT/REL TO USA, FVEY

User Activity Leads
!  Examine settings of phone as well as service
providers for geo-location; specific to a certain
region
!  Networks connected
!  Websites visited
!  Buddy Lists
!  Documents Downloaded
!  Encryption used and supported
!  User Agents

TOP SECRET//COMINT/REL TO USA, FVEY

12

TOP SECRET//COMINT/REL TO USA, FVEY

Targeting
Targeting both Telephony and DNI systems
!  Call Logs
!  SMS
!  SIM Card Leads
!  Email address
!  IMEI/IMSI
!  Unique Identifiers
!  Blackberry PINS

TOP SECRET//COMINT/REL TO USA, FVEY

13

TOP SECRET//COMINT/REL TO USA, FVEY

Why do we care?
• Additional exploitation
• Target Knowledge/Leads
• Location
• Target Technology
• Denote Media used

TOP SECRET//COMINT/REL TO USA, FVEY

14

TOP SECRET//COMINT/REL TO USA, FVEY

Conclusion
! 
! 
! 
! 
! 

Challenge is how to tag data for analysts
We can geo phones from virtually anywhere
Buried GeoStamp from Phone or Apps
Xkeyscore/Marina
Tasking systems

TOP SECRET//COMINT/REL TO USA, FVEY

15


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