Feature/rm submodule (#312)

* rm: submodule

* Add: rules

* Fix: hayabusa-rules to c9c10a

rules/sigma/process_creation/win_susp_certutil_encode.yml

@@ -0,0 +1,32 @@
+
+title: Certutil Encode
+ruletype: Sigma
+author: Florian Roth, Jonhnathan Ribeiro, oscd.community
+date: 2019/02/24
+description: Detects suspicious a certutil command that used to encode files, which
+  is sometimes used for data exfiltration
+detection:
+  SELECTION_1:
+    EventID: 1
+  SELECTION_2:
+    Image: '*\certutil.exe'
+  SELECTION_3:
+    CommandLine: '*-f*'
+  SELECTION_4:
+    CommandLine: '*-encode*'
+  condition: (SELECTION_1 and SELECTION_2 and SELECTION_3 and SELECTION_4)
+falsepositives:
+- unknown
+id: e62a9f0c-ca1e-46b2-85d5-a6da77f86d1a
+level: medium
+logsource:
+  category: process_creation
+  product: windows
+modified: 2020/11/28
+references:
+- https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/certutil
+- https://unit42.paloaltonetworks.com/new-babyshark-malware-targets-u-s-national-security-think-tanks/
+status: experimental
+tags:
+- attack.defense_evasion
+- attack.t1027