Socket Filters (T1205.002)

View on ATT&CK

In Playbook

Technique & Subtechniques

Associated Tactics

  • Defense Evasion
  • Persistence
  • Command And Control

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.

View on ATT&CK

Procedure Examples

Description Source(s)
ExaTrack. (2022, May 11). Tricephalic Hellkeeper: a tale of a passive backdoor. Retrieved October 18, 2022. exatrack bpf filters passive backdoors
Jamie Harries. (2022, May 25). Hunting a Global Telecommunications Threat: DecisiveArchitect and Its Custom Implant JustForFun. Retrieved October 18, 2022. crowdstrike bpf socket filters
Leonardo. (2020, May 29). MALWARE TECHNICAL INSIGHT TURLA “Penquin_x64”. Retrieved March 11, 2021. Leonardo Turla Penquin May 2020
Luis Martin Garcia. (2008, February 1). Hakin9 Issue 2/2008 Vol 3 No.2 VoIP Abuse: Storming SIP Security. Retrieved October 18, 2022. haking9 libpcap network sniffing