feat: new rules Linux Package Uninstall (#4098)

2023-03-13 06:04:53 +07:00
parent 61a6ca59b0
commit 2a1124e95e
1 changed files with 42 additions and 0 deletions
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+title: Linux Package Uninstall
+id: 95d61234-7f56-465c-6f2d-b562c6fedbc4
+status: experimental
+description: Detects linux package removal using builtin tools such as "yum", "apt", "apt-get" or "dpkg".
+references:
+    - https://sysdig.com/blog/mitre-defense-evasion-falco
+    - https://www.tutorialspoint.com/how-to-install-a-software-on-linux-using-yum-command
+    - https://linuxhint.com/uninstall_yum_package/
+    - https://linuxhint.com/uninstall-debian-packages/
+author: Tuan Le (NCSGroup), Nasreddine Bencherchali (Nextron Systems)
+date: 2023/03/09
+tags:
+    - attack.defense_evasion
+    - attack.t1070
+logsource:
+    product: linux
+    category: process_creation
+detection:
+    selection_yum:
+        Image|endswith: '/yum'
+        CommandLine|contains:
+            - 'erase'
+            - 'remove'
+    selection_apt:
+        Image|endswith:
+            - '/apt'
+            - '/apt-get'
+        CommandLine|contains:
+            - 'remove'
+            - 'purge'
+    selection_dpkg:
+        Image|endswith: '/dpkg'
+        CommandLine|contains:
+            - '--remove '
+            - ' -r '
+    selection_rpm:
+        Image|endswith: '/rpm'
+        CommandLine|contains: ' -e '
+    condition: 1 of selection_*
+falsepositives:
+    - Administrator or administrator scripts might delete packages for several reasons (debugging, troubleshooting).
+level: low