A simple keylogger for Linux systems
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Latest commit a687c72 Jul 13, 2014



SKeylogger is a simple keylogger. I had previously been using a few other open source keyloggers, but they stopped working when I upgraded my operating system. I tried to look through the code of those keyloggers, but it was undocumented, messy, and complex. I decided to make my own highly documented and very simple keylogger.

To build and run, clone the repository and run make. Then run sudo ./skeylogger. The keylogger will start and log all keypresses to /var/log/skeylogger.

Start on boot in Ubuntu

While Ubuntu isn't my main operating system (I'm an Arch Linux user), I got a few questions about how to start the keylogger when Ubuntu boots up. Here are the steps for Ubuntu 14.04:

  1. Edit /etc/rc.local and add /path/to/skeylogger above the line with exit 0. Replace /path/to/skeylogger with the full path to the keylogger binary.

  2. Allow sudo access without a password (Note: this may be a security threat. Do at your own risk). To do this, add the following line to /etc/sudoers making sure to replace the path with the path you used above and the username with your username:

    username ALL = NOPASSWD: /path/to/skeylogger
  3. Reboot ubuntu. Open a terminal and type pgrep skeylogger. You should find one skeylogger process running.