A specification based intrusion detection framework for mobile phones

  • Authors:

  • Ashwin Chaugule;Zhi Xu;Sencun Zhu

  • Affiliations:

  • Department of Computer Science and Engineering, The Pennsylvania State University, PA;Department of Computer Science and Engineering, The Pennsylvania State University, PA;Department of Computer Science and Engineering, The Pennsylvania State University, PA

  • Venue:
  • ACNS'11 Proceedings of the 9th international conference on Applied cryptography and network security
  • Year:
  • 2011

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Abstract

With the fast growth of mobile market, we are now seeing more and more malware on mobile phones. One common pattern of many commonly found malware on mobile phones is that: the malware always attempts to access sensitive system services on the mobile phone in an unobtrusive and stealthy fashion. For example, the malware may send messages automatically or stealthily interface with the audio peripherals on the device without the user's awareness and authorization. To detect the unauthorized malicious behavior, we present SBIDF, a Specification Based Intrusion Detection Framework, which utilizes the keypad or touchscreen interrupts to differentiate between malware and human activity. Specifically, in the proposed framework, we use an application independent specification, written in Temporal Logic of Causal Knowledge (TLCK), to describe the normal behavior pattern, and enforce this specification to all third party applications on the mobile phone during runtime by monitoring the inter-component communication pattern among critical components. Our evaluation of simulated behavior of real world malware shows that we are able to detect all forms of malware that attempts to access sensitive services without possessing user's permission. Furthermore, the SBIDF incurs a negligible overhead (20 µ secs) which makes it very feasible for real world deployment.