diff --git a/yml/OSScripts/pester.yml b/yml/OSScripts/pester.yml
index 38a15ca..7d85b52 100644
--- a/yml/OSScripts/pester.yml
+++ b/yml/OSScripts/pester.yml
@@ -25,6 +25,7 @@ Code_Sample:
   - Code:
 Detection:
   - Sigma: https://github.com/SigmaHQ/sigma/blob/08ca62cc8860f4660e945805d0dd615ce75258c1/rules/windows/process_creation/win_susp_pester.yml
+  - Sigma: https://github.com/SigmaHQ/sigma/blob/master/rules/windows/process_creation/proc_creation_win_susp_pester_parent.yml
 Resources:
   - Link: https://twitter.com/Oddvarmoe/status/993383596244258816
   - Link: https://twitter.com/_st0pp3r_/status/1560072680887525378