Detecting keyloggers based on traffic analysis with periodic behaviour

Security and privacy are key challenges for every computer user. While various security mechanisms, such as anti-virus, anti-spyware, updates and patches, are extensively applied, they cannot provide total security. Software keyloggers represent a fast-growing class of malware. Keylogging software records the user's typed keystrokes and saves them to a log file, and is therefore capable of logging sensitive information such as passwords, usernames, PINs and so on.^1 It can also record user activities such as online chat, capture screenshots, note URLs visited and more. Moreover, some keyloggers can upload the log file directly to attackers through remote connections.^2