T1132 Data Encoding
Adversaries may encode data to make the content of command and control traffic more difficult to detect. Command and control (C2) information can be encoded using a standard data encoding system. Use of data encoding may adhere to existing protocol specifications and includes use of ASCII, Unicode, Base64, MIME, or other binary-to-text and character encoding systems.(Citation: Wikipedia…
Who uses it · with stories on Jábega
Sigma rules to hunt it
- DNS Exfiltration and Tunneling Tools Executionhightest · windows
- Gzip Archive Decode Via PowerShellmediumtest · windows
- Suspicious FromBase64String Usage On Gzip Archive - Process Creationmediumtest · windows
- Suspicious FromBase64String Usage On Gzip Archive - Ps Scriptmediumtest · windows
Rules from SigmaHQ · Detection Rule License 1.1. Technique from MITRE ATT&CK®.