diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2a2778e4..7a736a60 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@
 ### Breaking Changes
 - Update Metadata type in capa main [#1411](https://github.com/mandiant/capa/issues/1411) [@Aayush-Goel-04](https://github.com/aayush-goel-04) @manasghandat
 
-### New Rules (7)
+### New Rules (8)
 
 - load-code/shellcode/execute-shellcode-via-windows-callback-function ervin.ocampo@mandiant.com jakub.jozwiak@mandiant.com
 - nursery/execute-shellcode-via-indirect-call ronnie.salomonsen@mandiant.com
@@ -18,6 +18,7 @@
 - communication/mailslot/read-from-mailslot nick.simonian@mandiant.com
 - nursery/hash-data-using-sha512managed-in-dotnet jonathanlepore@google.com
 - nursery/compiled-with-exescript jonathanlepore@google.com
+- nursery/check-for-sandbox-via-mac-address-ouis-in-dotnet jonathanlepore@google.com
 -
 
 ### Bug Fixes
diff --git a/README.md b/README.md
index 16d561bc..809a5651 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/flare-capa)](https://pypi.org/project/flare-capa)
 [![Last release](https://img.shields.io/github/v/release/mandiant/capa)](https://github.com/mandiant/capa/releases)
-[![Number of rules](https://img.shields.io/badge/rules-799-blue.svg)](https://github.com/mandiant/capa-rules)
+[![Number of rules](https://img.shields.io/badge/rules-800-blue.svg)](https://github.com/mandiant/capa-rules)
 [![CI status](https://github.com/mandiant/capa/workflows/CI/badge.svg)](https://github.com/mandiant/capa/actions?query=workflow%3ACI+event%3Apush+branch%3Amaster)
 [![Downloads](https://img.shields.io/github/downloads/mandiant/capa/total)](https://github.com/mandiant/capa/releases)
 [![License](https://img.shields.io/badge/license-Apache--2.0-green.svg)](LICENSE.txt)
diff --git a/rules b/rules
index 5eb25253..5f433fdf 160000
--- a/rules
+++ b/rules
@@ -1 +1 @@
-Subproject commit 5eb25253656e4425377fda84eb3e5291e9ef3d4a
+Subproject commit 5f433fdf8ea03b592db035b6b0c934bf04bb0812