T1070.002

Indicator Removal on Host Clear FreeBSD, Linux or Mac System Logs

Description from ATT&CK

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 /var/log/ directory. Subfolders in this directory categorize logs by their related functions, such as:(Citation: Linux Logs)

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

Tests

Test #1 - Delete system log files

This test deletes the system log file using Finder application.

⚠️ TCC Required

Input Arguments:

ArgumentTypeDefault Value
logPathstr/var/log/system.log
tell application "Finder" to delete POSIX file "/var/log/system.log"

Download Files

Download .scpt Download .swift Download Binary Download Application Bundle

References