updating detections

Author: patel-bhavin

detections/endpoint/suspicious_process_executed_from_container_file.yml

@@ -14,33 +14,54 @@ data_source:
 search: |-
     | tstats `security_content_summariesonly`
     count
-    values(Processes.process_name) as process_name
     min(_time) as firstTime
     max(_time) as lastTime
     from datamodel=Endpoint.Processes
     where Processes.process IN (
         "*.ZIP\\*",
+        "*.zip\\*",
         "*.ISO\\*",
+        "*.iso\\*",
         "*.IMG\\*",
+        "*.img\\*",
         "*.CAB\\*",
+        "*.cab\\*",
         "*.TAR\\*",
+        "*.tar\\*",
         "*.GZ\\*",
+        "*.gz\\*",
         "*.RAR\\*",
-        "*.7Z\\*"
+        "*.rar\\*",
+        "*.7Z\\*",
+        "*.7z\\*"
         )
         AND Processes.action="allowed"
     by
-        Processes.action Processes.dest Processes.original_file_name Processes.parent_process Processes.process_name Processes.parent_process_guid Processes.parent_process_id Processes.parent_process_name Processes.parent_process_path Processes.process_exec Processes.process_guid Processes.process_hash Processes.process_id Processes.process_integrity_level Processes.process_path Processes.user Processes.user_id Processes.vendor_product
-
+        Processes.action
+        Processes.dest
+        Processes.original_file_name
+        Processes.parent_process
+        Processes.parent_process_exec
+        Processes.parent_process_guid
+        Processes.parent_process_id
+        Processes.parent_process_name
+        Processes.parent_process_path
+        Processes.process
+        Processes.process_exec
+        Processes.process_guid
+        Processes.process_hash
+        Processes.process_id
+        Processes.process_integrity_level
+        Processes.process_name
+        Processes.process_path
+        Processes.user
+        Processes.user_id
+        Processes.vendor_product
     | `drop_dm_object_name(Processes)`
-
-    | regex process="(?i).*(ZIP|ISO|IMG|CAB|TAR|GZ|RAR|7Z)\\\\.+\.(BAT|BIN|CAB|CMD|COM|CPL|EX_|EXE|GADGET|INF1|INS|INX|HTM|HTML|ISU|JAR|JOB|JS|JSE|LNK|MSC|MSI|MSP|MST|PAF|PIF|PS1|REG|RGS|SCR|SCT|SHB|SHS|U3P|VB|VBE|VBS|VBSCRIPT|WS|WSF|WSH)\"?$"
-
-    | rex field=process "(?i).+\\\\(?<file_name>[^\\\\]+\.(ZIP|ISO|IMG|CAB|TAR|GZ|RAR|7Z))\\\\((.+\\\\)+)?(?<container_file_name>.+\.(BAT|BIN|CAB|CMD|COM|CPL|EX_|EXE|GADGET|INF1|INS|INX|HTM|HTML|ISU|JAR|JOB|JS|JSE|LNK|MSC|MSI|MSP|MST|PAF|PIF|PS1|REG|RGS|SCR|SCT|SHB|SHS|U3P|VB|VBE|VBS|VBSCRIPT|WS|WSF|WSH))\"?$"
-
+    | regex process="(?i).*\.(zip|iso|img|cab|tar|gz|rar|7z)\\\\.+\.(bat|bin|cab|cmd|com|cpl|ex_|exe|gadget|inf1|ins|inx|htm|html|isu|jar|job|js|jse|lnk|msc|msi|msp|mst|paf|pif|ps1|reg|rgs|scr|sct|shb|shs|u3p|vb|vbe|vbs|vbscript|ws|wsf|wsh)\"?$"
+    | rex field=process "(?i).+\\\\(?<file_name>[^\\\\]+\.(?:zip|iso|img|cab|tar|gz|rar|7z))\\\\(?:.+\\\\)?(?<container_file_name>[^\\\\\"]+\.(?:bat|bin|cab|cmd|com|cpl|ex_|exe|gadget|inf1|ins|inx|htm|html|isu|jar|job|js|jse|lnk|msc|msi|msp|mst|paf|pif|ps1|reg|rgs|scr|sct|shb|shs|u3p|vb|vbe|vbs|vbscript|ws|wsf|wsh))\"?$"
     | `security_content_ctime(firstTime)`
     | `security_content_ctime(lastTime)`
-
     | `suspicious_process_executed_from_container_file_filter`
 how_to_implement: The detection is based on data that originates from Endpoint Detection and Response (EDR) agents. These agents are designed to provide security-related telemetry from the endpoints where the agent is installed. To implement this search, you must ingest logs that contain the process GUID, process name, and parent process. Additionally, you must ingest complete command-line executions. These logs must be processed using the appropriate Splunk Technology Add-ons that are specific to the EDR product. The logs must also be mapped to the `Processes` node of the `Endpoint` data model. Use the Splunk Common Information Model (CIM) to normalize the field names and speed up the data modeling process.
 known_false_positives: Various business process or userland applications and behavior.