Smartphone has emerged as most popular gadget now-a-days offering most of functionalities of Personal computer as well as has developing features and applications based on internet, due to which smartphones become vulnerable to security threats similar to the personal computers. Smartphones have limited storage, computational power, processing so implementing intrusion detection and signature based attack detection on smartphone becomes difficult. Cloud computing is a new computing technology gaining attraction in today’s world due to its better resource utilization, scalability and cost effectiveness.