Add Gemma configuration to defaults.yaml

Support sigma playbooks for airgap

salt/common/tools/sbin/so-log-check

@@ -231,7 +231,7 @@ if [[ $EXCLUDE_KNOWN_ERRORS == 'Y' ]]; then
     EXCLUDED_ERRORS="$EXCLUDED_ERRORS|from NIC checksum offloading" # zeek reporter.log
     EXCLUDED_ERRORS="$EXCLUDED_ERRORS|marked for removal"           # docker container getting recycled
     EXCLUDED_ERRORS="$EXCLUDED_ERRORS|tcp 127.0.0.1:6791: bind: address already in use" # so-elastic-fleet agent restarting. Seen starting w/ 8.18.8 https://github.com/elastic/kibana/issues/201459
-    EXCLUDED_ERRORS="$EXCLUDED_ERRORS|TransformTask\] \[logs-(tychon|aws_billing|microsoft_defender_endpoint|armis|o365_metrics|microsoft_sentinel|snyk|cyera|island_browser).*user so_kibana lacks the required permissions \[(logs|metrics)-\1" # Known issue with integrations starting transform jobs that are explicitly not allowed to start as a system user. This error should not be seen on fresh ES 9.3.3 installs or after SO 3.1.0 with soups addition of check_transform_health_and_reauthorize()
+    EXCLUDED_ERRORS="$EXCLUDED_ERRORS|TransformTask\] \[logs-.*user so_kibana lacks the required permissions" # Known issue with integrations starting transform jobs that are explicitly not allowed to start as a system user
     EXCLUDED_ERRORS="$EXCLUDED_ERRORS|manifest unknown"             # appears in so-dockerregistry log for so-tcpreplay following docker upgrade to 29.2.1-1
 fi
 

salt/reactor/pillar_push_map.yaml

@@ -242,7 +242,7 @@ versionlock:
 # grain (compound supports nested grain matching via G@<key>:<subkey>:<value>).
 # pillar/vm/soc_vm.sls write path is referenced at salt/_runners/setup_hypervisor.py:856.
 vm:
-  - state: vm
+  - state: vm.user
     tgt: 'G@salt-cloud:driver:libvirt'
 
 # zeek: sensor_roles + so-import (5 roles).

salt/repo/client/oracle.sls

@@ -60,6 +60,9 @@ so_repo:
   {% endif %}
     - enabled: 1
     - gpgcheck: 1
+  {% if not GLOBALS.is_manager %}
+    - sslverify: 0
+  {% endif %}
 
 # Only assign the kernel repo once this node's running salt matches the version this
 # SO release ships. During a soup the grid is mid-salt-upgrade; gating here keeps the
@@ -77,6 +80,9 @@ so_kernel_repo:
   {% endif %}
     - enabled: 1
     - gpgcheck: 1
+  {% if not GLOBALS.is_manager %}
+    - sslverify: 0
+  {% endif %}
     # Supplementary kernel repo: tolerate it being empty/unreachable (e.g. before the
     # manager has populated /nsm/kernelrepo) so a missing repomd.xml can't make every
     # dnf/pkg operation on the grid fail.

salt/soc/defaults.yaml

@@ -1512,6 +1512,10 @@ soc:
                 rulesetName: sos-resources-ag
                 branch: main
                 folder: securityonion-normalized
+              - repo: file:///nsm/airgap-resources/playbooks/securityonion-resources-playbooks
+                rulesetName: sos-published-ag
+                branch: published
+                folder: sigma
         assistant:
           systemPromptAddendum: ""
           systemPromptAddendumMaxLength: 50000
@@ -2714,4 +2718,14 @@ soc:
               enabled: true
               adapter: SOAI
               charsPerTokenEstimate: 4
+            - id: gemma
+              displayName: Gemma
+              origin: USA
+              contextLimitSmall: 256000
+              contextLimitLarge: 256000
+              lowBalanceColorAlert: 500000
+              enabled: true
+              adapter: SOAI
+              charsPerTokenEstimate: 4
+              
             

salt/soc/files/soc/sigma_playbook_pipeline.yaml

@@ -12,6 +12,30 @@ transformations:
         process.command_line: process.command_line.caseless
         process.parent.command_line: process.parent.command_line.caseless
         file.path: file.path.caseless
+    # entity_id pivots must also match processes that were already running when the
+    # agent started: Defend emits already_running (event.type:info), not start.
+    # Kept out of Playbook sigma query because Sysmon has no equivalent concept.
+    # contains_field is exact, so child pivots (process.parent.entity_id) stay
+    # start-only. Drop must precede add;
+    - id: playbook_process_lifecycle_drop_start_scope
+      type: drop_detection_item
+      field_name_conditions:
+        - type: include_fields
+          fields: ['event.type']
+      rule_conditions:
+        - type: logsource
+          category: process_creation
+        - type: contains_field
+          field: process.entity_id
+    - id: playbook_process_lifecycle_add-fields
+      type: add_condition
+      conditions:
+        event.type: ['start', 'info']
+      rule_conditions:
+        - type: logsource
+          category: process_creation
+        - type: contains_field
+          field: process.entity_id
     # file_activity: playbook-only pseudo-category spanning all file operations.
     - id: playbook_file_activity_add-fields
       type: add_condition

salt/soc/files/soc/sigma_so_pipeline.yaml

@@ -68,13 +68,25 @@ transformations:
       - type: logsource
         category: antivirus
     # OS-agnostic process_creation scoping for product-less (NIDS/host-pivot) rules.
+    # pySigma: rule_cond_expr requires rule_conditions as a mapping, not a list.
     - id: process_creation_os_agnostic
       type: add_condition
       conditions:
         event.category: process
       rule_conditions:
-      - type: logsource
+        pc_cat:
-        category: process_creation
+          type: logsource
+          category: process_creation
+        pc_win:
+          type: logsource
+          product: windows
+        pc_mac:
+          type: logsource
+          product: macos
+        pc_lin:
+          type: logsource
+          product: linux
+      rule_cond_expr: "pc_cat and not (pc_win or pc_mac or pc_lin)"
     # Transforms the `Hashes` field to ECS fields
     # ECS fields are used by the hash fields emitted by Elastic Defend
     # If shipped with Elastic Agent, sysmon logs will also have hashes mapped to ECS fields    
@@ -630,4 +642,4 @@ transformations:
         tags: '*file'
       rule_conditions:
       - type: logsource
-        category: file
+        category: file