T1218Techniquedefense-evasionagent-callable

T1218System Binary Proxy Execution

Platforms: Windows · Linux · macOS

ATT&CK version: 14.1

What it is

Adversaries may bypass process and/or signature-based defenses by proxying execution of malicious content with signed, or otherwise trusted, binaries. Binaries used in this technique are often Microsoft-signed files, indicating that they have been either downloaded from Microsoft or are already native in the operating system.(Citation: LOLBAS Project) Binaries signed with trusted digital certificates can typically execute on Windows systems protected by digital signature validation. Several Microsoft signed binaries that are default on Windows installations can be used to proxy execution of other files or commands. Similarly, on Linux systems adversaries may abuse trusted binaries such as <code>split</code> to proxy execution of malicious commands.(Citation: split man page)(Citation: GTFO split)

ATT&CK tactics· 1

Defense Evasion

References

  1. https://attack.mitre.org/techniques/T1218
  2. https://gtfobins.github.io/gtfobins/split/
  3. https://github.com/LOLBAS-Project/LOLBAS#criteria
  4. https://man7.org/linux/man-pages/man1/split.1.html
Sourced from MITRE ATT&CK Enterprise v14.1. Curated and contextualized for EU compliance use cases by Adam Lundqvist, Founder at SQUR.
T1218: System Binary Proxy Execution | SQUR Knowledge Base