From e8f21bc09440fc00328c41a2d4693e02357c438d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9D=D0=B0=D1=82=D0=B0=D0=BB=D1=8C=D1=8F=20=D0=A8=D0=BE?=
 =?UTF-8?q?=D1=80=D0=BD=D0=B8=D0=BA=D0=BE=D0=B2=D0=B0?=
 <n.shornikova@izsoc.ru>
Date: Thu, 15 Oct 2020 17:41:52 +0300
Subject: [PATCH] Adding powershell_CL_Invocation_LOLScript.yml Rule

---
 .../powershell_CL_Invocation_LOLScript.yml    | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 rules/windows/powershell/powershell_CL_Invocation_LOLScript.yml

diff --git a/rules/windows/powershell/powershell_CL_Invocation_LOLScript.yml b/rules/windows/powershell/powershell_CL_Invocation_LOLScript.yml
new file mode 100644
index 000000000..3a97e90fb
--- /dev/null
+++ b/rules/windows/powershell/powershell_CL_Invocation_LOLScript.yml
@@ -0,0 +1,35 @@
+title: Execution via CL_Invocation.ps1
+id: 4cd29327-685a-460e-9dac-c3ab96e549dc
+description: Detects Execution via SyncInvoke in CL_Invocation.ps1 module
+status: experimental
+author: oscd.community, Natalia Shornikova
+date: 2020/10/14
+references:
+    - https://github.com/LOLBAS-Project/LOLBAS/blob/master/yml/OSScripts/Cl_invocation.yml
+    - https://twitter.com/bohops/status/948061991012327424
+tags:
+    - attack.defense_evasion
+    - attack.t1216
+logsource:
+    product: windows
+    service: powershell
+detection:
+    selection:
+        EventID: 4104
+        ScriptBlockText|contains|all:
+          - 'CL_Invocation.ps1'
+          - 'SyncInvoke'
+    selection2:
+        EventID: 4104
+        ScriptBlockText|contains:
+          - 'CL_Invocation.ps1'
+          - 'SyncInvoke'
+    timeframe: 1m
+    condition: 
+        - selection
+      # PS > Import-Module c:\Windows\diagnostics\system\Audio\CL_Invocation.ps1; SyncInvoke c:\Evil.exe
+        - selection2 | count(ScriptBlockText) by Computer > 2
+      # PS > Import-Module c:\Windows\diagnostics\system\Audio\CL_Invocation.ps1
+      # PS > SyncInvoke c:\Evil.exe
+falsepositives: Unknown
+level: high
\ No newline at end of file