From 4cc4df35d82e738c46d7c80cf3c010926e1dbcd1 Mon Sep 17 00:00:00 2001
From: frack113 <magicfrancois@gmail.com>
Date: Wed, 21 Jul 2021 15:27:12 +0200
Subject: [PATCH] add powershell_suspicious_mail_acces.yml

---
 .../powershell_suspicious_mail_acces.yml      | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 rules/windows/powershell/powershell_suspicious_mail_acces.yml

diff --git a/rules/windows/powershell/powershell_suspicious_mail_acces.yml b/rules/windows/powershell/powershell_suspicious_mail_acces.yml
new file mode 100644
index 00000000..660c798a
--- /dev/null
+++ b/rules/windows/powershell/powershell_suspicious_mail_acces.yml
@@ -0,0 +1,27 @@
+title: Powershell Local Email Collection
+id: 2837e152-93c8-43d2-85ba-c3cd3c2ae614
+status: experimental
+author: frack113
+date: 2021/07/21
+description: Adversaries may target user email on local systems to collect sensitive information. Files containing email data can be acquired from a user’s local system, such as Outlook storage or cache files. 
+references:
+    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1114.001/T1114.001.md
+tags:
+    - attack.collection
+    - attack.t1114.001
+logsource:
+    product: windows
+    service: powershell
+    description: EnableScriptBlockLogging must be set to enable
+detection:
+    selection:
+        EventID: 4104
+        ScriptBlockText|contains:
+            - 'Get-Inbox.ps1'
+            - 'Microsoft.Office.Interop.Outlook'
+            - 'Microsoft.Office.Interop.Outlook.olDefaultFolders'
+            - '-comobject outlook.application'
+    condition: selection 
+falsepositives:
+    - Unknown
+level: medium