Ptrace System Calls (T1055.008)

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In Playbook

Associated Tactics

  • Defense Evasion
  • Privilege Escalation

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)
Kerrisk, M. (2020, February 9). PTRACE(2) - Linux Programmer's Manual. Retrieved February 21, 2020. PTRACE man
Jain, S. (2018, July 25). Code injection in running process using ptrace. Retrieved February 21, 2020. Medium Ptrace JUL 2018
Colgan, T. (2015, August 15). Linux-Inject. Retrieved February 21, 2020. BH Linux Inject
Ligh, M.H. et al.. (2014, July). The Art of Memory Forensics: Detecting Malware and Threats in Windows, Linux, and Mac Memory. Retrieved December 20, 2017. ArtOfMemoryForensics
GNU. (2010, February 5). The GNU Accounting Utilities. Retrieved December 20, 2017. GNU Acct
Jahoda, M. et al.. (2017, March 14). redhat Security Guide - Chapter 7 - System Auditing. Retrieved December 20, 2017. RHEL auditd
stderr. (2014, February 14). Detecting Userland Preload Rootkits. Retrieved December 20, 2017. Chokepoint preload rootkits