Update juniper_networks_remote_code_execution_exploit_detection.yml

detections/web/juniper_networks_remote_code_execution_exploit_detection.yml

@@ -8,7 +8,7 @@ type: TTP
 data_source: []
 description: The following analytic detects the exploitation of a remote code execution vulnerability in Juniper Networks devices. The vulnerability involves multiple steps, including uploading a malicious PHP file and an INI file to the target server, and then executing the PHP code by manipulating the PHP configuration via the uploaded INI file. The analytic specifically looks for requests to /webauth_operation.php?PHPRC=*, which are used to upload the files and execute the code, respectively. This behavior is worth identifying for a SOC because it indicates that an attacker is attempting to exploit the vulnerability to gain unauthorized access to the device and execute arbitrary code. If a true positive is found, it suggests that an attacker has successfully exploited the vulnerability and may have gained control over the device, leading to data theft, network compromise, or other damaging outcomes. Upon triage, review the request parameters and the response to determine if the exploitation was successful. Capture and inspect any relevant network traffic and server logs to identify the attack source. This approach helps analysts detect potential threats earlier and mitigate the risks.
 search: '| tstats count min(_time) as firstTime max(_time)
-  as lastTime from datamodel=Web where Web.url IN ("/webauth_operation.php?PHPRC=*") Web.status=200
+  as lastTime from datamodel=Web where Web.url IN ("*/webauth_operation.php?PHPRC=*") Web.status=200
   by Web.http_user_agent, Web.status Web.http_method, Web.url, Web.url_length, Web.src, Web.dest, sourcetype
   | `drop_dm_object_name("Web")`
   | `security_content_ctime(firstTime)`