diff --git a/detections/processes_created_by_netsh.yml b/detections/processes_created_by_netsh.yml index bc4fffaad1..462de0e4c1 100644 --- a/detections/processes_created_by_netsh.yml +++ b/detections/processes_created_by_netsh.yml @@ -1,7 +1,7 @@ name: Processes created by netsh id: b89919ed-fe5f-492c-b139-95dbb162041e version: 3 -date: '2020-03-02' +date: '2020-07-14' description: This search looks for processes launching netsh.exe to execute various commands via the netsh command-line utility. Netsh.exe is a command-line scripting utility that allows you to, either locally or remotely, display or modify the network @@ -17,13 +17,13 @@ references: [] author: Bhavin Patel, Splunk search: '| tstats `security_content_summariesonly` count values(Processes.process) as process min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes - where Processes.parent_process="*C:\\Windows\\System32\\netsh.exe*" by Processes.user + where (Processes.parent_process="*C:\\Windows\\System32\\netsh.exe*" AND Processes.process_path!="C:\\Program Files\\rempl\\sedlauncher.exe") by Processes.user Processes.dest Processes.parent_process Processes.parent_process_name Processes.process_name | `drop_dm_object_name("Processes")` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `processes_created_by_netsh_filter`' known_false_positives: It is unusual for netsh.exe to have any child processes in most environments. It makes sense to investigate the child process and verify whether - the process spawned is legitimate. + the process spawned is legitimate. We explicitely exclude "C:\Program Files\rempl\sedlauncher.exe" process path since it is a legitimate process by Mircosoft. tags: analytics_story: - Netsh Abuse