- Tactics
- Collection
- Platforms
- Linux, macOS, Windows
- Reference
- attack.mitre.org/techniques/T1560.002
Description
An adversary may compress or encrypt data that is collected prior to exfiltration using 3rd party libraries. Many libraries exist that can archive data, including Python rarfile (Citation: PyPI RAR), libzip (Citation: libzip), and zlib (Citation: Zlib Github). Most libraries include functionality to encrypt and/or compress data.
Some archival libraries are preinstalled on systems, such as bzip2 on macOS and Linux, and zip on Windows. Note that the libraries are different from the utilities. The libraries can be linked against when compiling, while the utilities require spawning a subshell, or a similar execution mechanism.
How GTK Cyber trains on this
GTK Cyber's Threat Hunting with Data Science course teaches you to build machine-learning detections for techniques like this across the MITRE ATT&CK framework, including the Collection tactic this technique falls under. Practitioner-led, focused on real detections, not memorizing technique IDs.
Related techniques
- T1005 — Data from Local System
- T1025 — Data from Removable Media
- T1039 — Data from Network Shared Drive
- T1056 — Input Capture
- T1074 — Data Staged
- T1113 — Screen Capture
- T1114 — Email Collection
- T1115 — Clipboard Data
- T1119 — Automated Collection
- T1123 — Audio Capture
- T1125 — Video Capture
- T1185 — Browser Session Hijacking