With the rapid advancements in information and communication technology in the world, crimes committed are becoming technically intensive. When crimes committed use digital devices and forensic examiners have to adopt practical frameworks and methods to recover data for analysis which can pose as evidence. This concept explains emerging cyber-crimes, forensic analysis steps in the storage media, hidden data analysis in the file system, network forensic methods, memory forensic modules and cyber-crime data mining. This survey paper shows various methods for finding cyber attacks.