Adversaries may search the bash command history on compromised systems for insecurely stored credentials. Bash keeps track of the commands users type on the command-line with the "history" utility. Once a user logs out, the history is flushed to the user’s <code>.bash_history</code> file. For each user, this file resides at the same location: <code>~/.bash_history</code>. Typically, this file keeps track of the user’s last 500 commands. Users often type usernames and passwords on the command-line as parameters to programs, which then get saved to this file when they log out. Adversaries can abuse this by looking through the file for potential credentials. (Citation: External to DA, the OS X Way)
Bash History
source_name: mitre-attack  url: https://attack.mitre.org/techniques/T1552/003  external_id: T1552.003     source_name: External to DA, the OS X Way  description: Alex Rymdeko-Harvey, Steve Borosh. (2016, May 14). External to DA, the OS X Way. Retrieved July 3, 2017.  url: http://www.slideshare.net/StephanBorosh/external-to-da-the-os-x-way     