Analytics BIOC Informational

Globally uncommon high entropy process was executed

A process with high entropy and a globally uncommon hash was executed.

Module:
Platform Analytics
Data source:
XDR Agent
ATT&CK tactics: Defense Evasion (TA0005)
ATT&CK techniques: Obfuscated Files or Information (T1027)
Attacker's goals:

Adversaries may attempt to make an executable difficult to discover or analyze by compressing, encrypting, encoding, or otherwise obfuscating its contents.

Investigative actions:

Check if the process' file is either compressed, encrypted, obfuscated or packed.

Test period:
N/A (single event)
Deduplication:
1 Day
3 variations:
  • Globally uncommon high entropy process was executed by a web server process or CGO Low (parent: Informational) Adds External Remote Services (T1133) Server Software Component: Web Shell (T1505.003)
  • Globally uncommon high entropy process was extracted from an internet-downloaded archive and executed Low (parent: Informational)
  • Globally uncommon high entropy process was downloaded from an uncommon source and executed Low (parent: Informational)