Merge pull request #1751 from frack113/redcanary_t1560.001_7zip

[OSCD] Redcanary t1560.001 7z

rules/windows/process_creation/process_creation_susp_7z.yml

@@ -0,0 +1,33 @@
+title: Compress Data and Lock With Password for Exfiltration With 7-ZIP
+id: 9fbf5927-5261-4284-a71d-f681029ea574
+status: experimental
+author: frack113
+date: 2021/07/27
+description: An adversary may compress or encrypt data that is collected prior to exfiltration using 3rd party utilities
+references:
+    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1560.001/T1560.001.md
+tags:
+    - attack.collection
+    - attack.t1560.001
+logsource:
+    category: process_creation
+    product: windows
+detection:
+    selection_7z:
+        CommandLine|contains:
+            - '7z.exe'
+            - '7za.exe'
+    selection_password:
+        CommandLine|contains: ' -p'
+    selection_action:
+        CommandLine|contains:
+            - ' a '
+            - ' u '
+    condition: all of them
+falsepositives:
+    - Command line parameter combinations that contain all included strings
+level: medium
+fields:
+    - CommandLine
+    - ParentCommandLine
+    - CurrentDirectory