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6 changes: 3 additions & 3 deletions detections/endpoint/suspicious_copy_on_system32.yml
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
name: Suspicious Copy on System32
id: ce633e56-25b2-11ec-9e76-acde48001122
version: 6
date: '2025-02-10'
version: 7
date: '2025-02-21'
author: Teoderick Contreras, Splunk
status: production
type: TTP
Expand All @@ -23,7 +23,7 @@ search: '| tstats `security_content_summariesonly` count min(_time) as firstTime
AND `process_copy` AND Processes.process IN("*\\Windows\\System32\\*", "*\\Windows\\SysWow64\\*")
AND Processes.process = "*copy*" by Processes.dest Processes.user Processes.parent_process_name
Processes.process_name Processes.process Processes.process_id Processes.parent_process_id
temp | `drop_dm_object_name(Processes)` | eval splitted_commandline=split(process,"
| `drop_dm_object_name(Processes)` | eval splitted_commandline=split(process,"
") | eval first_cmdline=lower(mvindex(splitted_commandline,0)) | where NOT LIKE(first_cmdline,"%\\windows\\system32\\%")
AND NOT LIKE(first_cmdline,"%\\windows\\syswow64\\%") | `security_content_ctime(firstTime)`
| `security_content_ctime(lastTime)` |`suspicious_copy_on_system32_filter`'
Expand Down