Synopsis
Activation Period |
14 Days |
Training Period |
30 Days |
Test Period |
N/A (single event) |
Deduplication Period |
1 Day |
Required Data |
|
Detection Modules |
|
ATT&CK Tactic |
|
ATT&CK Technique |
|
Severity |
Medium |
Description
Rundll32.exe is meant to run with parameters, so the absence of them is extremely suspicious; this behavior is used in the default configuration of Cobalt Strike.
Attacker's Goals
- Run as a signed Microsoft executables to avoid detection.
- Rundll32 is the default process used by Cobalt Strike for running post-exploitation tools.
Investigative actions
- Check for any injection event to the Rundll32 process.
- Check the causality of execution for any injections.