cellphone virus and security
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  • 1. CELLPHONE VIRUS AND SECURITY By R.Sindu Sree
  • 2. INTRODUCTION
  • 3. Smart Phone Growth
    • The day when everyone has a PC in their pocket has arrived –
    • Three things driving growth –
      • Increasing amount of time we spend online
      • Instant gratification
      • Lifestyle patterns and social networking
  • 4. Smart Phones ‘R Pocket Computers
    • Most commonly used phones, as defined by operating system (OS) –
      • Android (Android OS)
      • BlackBerry (RIM OS)
      • iPhones / iPod touch (iPhone OS)
      • PalmPre (WebOS)
      • Windows Mobile (WinMobile OS)
  • 5. Current threats by mobile malware
    • For financial gain / loss
        • Unnecessary calls / SMS / MMS
        • Send and sell private information
    • Cause phones to work slowly or crash
    • Wipe out contact books and other information on the phone
    • Install “false” applications
  • 6. Internet, Bluetooth, and MMS
    • In all of these transfer methods, the user has to agree at least once to run the infected file
    • But smart phone virus writters get you to open and install their product the same way computer virus writers do:
      • The virus is typically disguised as a game, security patch or other desirable application
  • 7. Viruses and Smart Phones
      • How smart phone viruses spread –
      • Internet downloads
      • Bluetooth
      • Multimedia Messaging System (MMS)
    • Only smart phones susceptible to viruses
      • Phones that can only make and receive calls are not at risk
  • 8. HISTORY
      • iPhone SMS attack first took place in July 2009
    • We trust smart phones & think they are safe
      • We have the mistaken sense they are immune to security threats
    • Smart phones typically lack security features, like antivirus, found on other computers
  • 9. Smart Phones Difficult to Protect
    • Easily stolen: theft is single largest problem
    • Protection options not well known
    • Eavesdropping options are available
    • More types of smart phones = complications
  • 10. Differences with PC
    • Although similar OSes are being used, differences exist:
      • Mobiles are always “connected” and switched on
      • “ Environment” keeps changing Several variants of phones exist
        • A malware for one type of phone may not necessarily be able to infect other
      • Mobile malware not yet causing critical harm
        • At most
          • they increase the user's billing, or
          • cause the mobile phone to stop working.
  • 11. Classification of Mobile Worms and Viruses
  • 12. Classification
    • Behaviour
      • Virus
      • Worm
      • Trojan
    • Environment
      • Operating System
      • Vulnerable Application
  • 13. Classification (examples) 31 st October 2006 Mobile Worms and Viruses Source: Kaspersky Labs
  • 14. Case Studies
  • 15. Case Study – CABIR
    • First mobile worm
    • Spread vector – Bluetooth
    • Infected file – caribe.sis
    • 15 new variants exist
  • 16. Case Study - ComWar
    • Second landmark in mobile worms
    • Spread vector - Bluetooth and MMS
    • Large spread area due to MMS
    • Not as proof of concept – Intention to harm by charging the mobile user
    • Multiple variants detected
  • 17. Case Study - CardTrap
    • First cross-over mobile virus found
    • Can migrate from mobile to PC
    • Propogates as infected mobile application as well as Windows worm
    • 2 variants found
  • 18. Futuristic Threats
  • 19. Futuristic Developments
    • Location Tracking
    • Camera and Microphone Bug
    • Leaking Sensitive Information
  • 20. Protective Measures
  • 21. Securing against attacks
    • System level security
      • MOSES
    • Network Level Security
      • Proactive approach
  • 22. Basic Protection All Smart Phones
    • Passcode
      • Enable at least 4 digits but this also depends upon IT policies
      • Exceeding the number of allowed password attempts deletes all data
      • Auto-Lock
      • Locks the screen after a pre-set time period of non-use (consider 30 minutes or less)
      • Passcode-lock enhances auto-lock
      • By itself not exactly a security feature but combined with passcode protection, it’s essential security
  • 23. Eavesdropping
    • Last year Karsten Nohl, a UVa PhD graduate, cracked the secret code used on 80% of the world’s phones
    • Mobile interception, as a result, is now within the reach of “any reasonable well-funded criminal organization”
    • You and I cannot fix this problem, but it’s not likely to affect us individually
  • 24. Eavesdropping
    • Anyone can install eavesdropping software on your smart phone, as long as they have access to your phone even for a few minutes
    • Subtle signs that could suggest someone is secretly tapping your cell phone –
      • Cell phone battery is warm even when your phone has not been used
      • Cell phone lights up at unexpected times, including occasions when phone is not in use
      • Unexpected beep or click during phone conversation
  • 25. Jealous Husband Scenario
    • Install SpyPhone, and send the report
    • Delete the report from sent emails,
      • Delete SpyPhone
  • 26. Lock Down Bluetooth!
    • Bluetooth is default-on
      • Wastes your battery
      • Leaves you open to Bluetooth-based attacks – most common at this time
  • 27. Defense-in-Depth
    • Get latest firmware and software your mobile device manufacturer provides
    • Maintain situational awareness when carrying any electronic device
    • Watch your mobile device as you go through airport security
      • Known bad location for device theft
      • Save important transmissions until you can connect to a secure environment
  • 28. Secure an iPhone
    • Auto-Lock locks the touch screen for a preset time period after not being used for one, two, three, four or five minutes. Turned on by default but can be disabled altogether
    • Password-protect the SIM card on a 3G
    • The Erase Data function lets you completely wipe your iPhone after 10 failed passcode attempts
  • 29. Social Engineering Threats
    • The best security in the world will not help you if –
      • You click on an phishing email and give your personal information
      • You click on a SMS/text message that appears to come from your carrier
      • You respond to a vishing phone call*
    • Never give information via email or by phone or on the web, unless you initiate the exchange
  • 30. Threats to Smart Phones
    • Attackers will exploit our social conditioning entering Personally Identifiable Information (PI/PII), while interacting with phone voice response to commit vishing and identity theft. 1
    • We demand more and better availability from phone service than we would from an ISP, “so the threat of a DoS attack might compel carriers to pay out on a blackmail scam.” 1
    • “ At this point, mobile device capability is far ahead of security … We’ll start to see the botnet problem infiltrate the mobile world in 2012.” 2
  • 31. Questions?