Adversaries may clear system logs to hide evidence of an intrusion. macOS and Linux both keep track of system or user-initiated actions via system logs. The majority of native system logging is stored under the <code>/var/log/</code> directory. Subfolders in this directory categorize logs by their related functions, such as:(Citation: Linux Logs)

* <code>/var/log/messages:</code>: General and system-related messages
* <code>/var/log/secure</code> or <code>/var/log/auth.log</code>: Authentication logs
* <code>/var/log/utmp</code> or <code>/var/log/wtmp</code>: Login records
* <code>/var/log/kern.log</code>: Kernel logs
* <code>/var/log/cron.log</code>: Crond logs
* <code>/var/log/maillog</code>: Mail server logs
* <code>/var/log/httpd/</code>: Web server access and error logs

Clear Linux or Mac System Logs
source_name: mitre-attack  url: https://attack.mitre.org/techniques/T1070/002  external_id: T1070.002     source_name: Linux Logs  description: Marcel. (2018, April 19). 12 Critical Linux Log Files You Must be Monitoring. Retrieved March 29, 2020.  url: https://www.eurovps.com/blog/important-linux-log-files-you-must-be-monitoring/     