Ghost Keylogger is an invisible easy-to-use surveillance tool that records every keystroke to an encrypted log file. The log file can be sent secretly with e-mail to a specified receiver. Ghost Keylogger also monitors the Internet activity by logging the addresses of visited homepages. It monitors time and title of the active application; even text in editboxes and message boxes is captured. The key logger runs invisibly on all operating systems, even in the NT/2000/XP process list.

Version 3.73 features unspecified improvements and bug fixes.