Pre-OS Boot (T1542)

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In Playbook

Associated Tactics

  • Defense Evasion
  • Persistence

Defense Evasion (TA0005)

The adversary is trying to avoid being detected. Defense Evasion consists of techniques that adversaries use to avoid detection throughout their compromise. Techniques used for defense evasion include uninstalling/disabling security software or obfuscating/encrypting data and scripts. Adversaries also leverage and abuse trusted processes to hide and masquerade their malware. Other tactics’ techniques are cross-listed here when those techniques include the added benefit of subverting defenses.

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Procedure Examples

Description Source(s)
Pinola, M. (2014, December 14). 3 tools to check your hard drive's health and make sure it's not already dying on you. Retrieved October 2, 2018. ITWorld Hard Disk Health Dec 2014
Wikipedia. (n.d.). Booting. Retrieved November 13, 2019. Wikipedia Booting