Abstract: Data outsourcing on cloud is emerging as a research area with different tools and techniques for malware detection in cloud. Data security is becoming one of the major concerns of cloud data owners. Cloud data servers use both internal and external methods to examine the outsourced data and are concerned with developing methods to explore the unique types of techniques for secure data computing. To achieve the high security on outsourced data numerous techniques were used. These tools provide various benefits for the secure data outsourcing and data verification over cloud environment. This survey focuses on the various tools and techniques used for cloud data verification and finally provide an outline to overcome the problems of those techniques.

Keywords: Cloud computing, Data security, Integrity verification, Public auditing, Privacy. Malware detection, Signature schemes, SAAS.