From cd4491cba2fe03876ea46ba3b9195e45fe5ce021 Mon Sep 17 00:00:00 2001
From: Florian Roth <florian.roth@nextron-systems.com>
Date: Thu, 28 Jan 2021 13:48:30 +0100
Subject: [PATCH] rule: disable volume snaptshots

---
 .../win_susp_volsnap_disable.yml              | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 rules/windows/process_creation/win_susp_volsnap_disable.yml

diff --git a/rules/windows/process_creation/win_susp_volsnap_disable.yml b/rules/windows/process_creation/win_susp_volsnap_disable.yml
new file mode 100644
index 000000000..f82e01ade
--- /dev/null
+++ b/rules/windows/process_creation/win_susp_volsnap_disable.yml
@@ -0,0 +1,26 @@
+title: Disabled Volume Snapshots
+id: dee4af55-1f22-4e1d-a9d2-4bdc7ecb472a
+description: Detects commands that temporarily turn off Volume Snapshots
+references:
+    - https://twitter.com/0gtweet/status/1354766164166115331
+date: 2021/01/28
+status: experimental
+author: Florian Roth
+tags:
+    - attack.defense_evasion
+    - attack.t1562.004
+    - attack.s0108
+logsource:
+    category: process_creation
+    product: windows
+detection:
+    selection:
+        CommandLine|contains|all:
+            - 'reg'
+            - ' add '
+            - '\Services\VSS\Diag' 
+            - '/d Disabled'
+    condition: selection
+falsepositives:
+    - Legitimate administration
+level: high