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https://github.com/splunk/security_content
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fixing failed detections
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@@ -42,7 +42,7 @@ drilldown_searches:
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earliest_offset: $info_min_time$
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latest_offset: $info_max_time$
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rba:
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message: Remote system discovery with PowerView on $dest$ by $user$
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message: Remote system discovery with PowerView on $dest$ by $user_id$
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risk_objects:
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- field: dest
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type: system
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@@ -47,7 +47,7 @@ drilldown_searches:
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latest_offset: $info_max_time$
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rba:
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message: A suspicious powershell process $process_name$ that tries to create a remote
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thread on target process $TargetImage$ with eventcode $EventCode$ in host $dest$
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thread on target process $TargetImage$ on host $dest$
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risk_objects:
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- field: dest
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type: system
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@@ -42,7 +42,7 @@ drilldown_searches:
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earliest_offset: $info_min_time$
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latest_offset: $info_max_time$
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rba:
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message: Remote system discovery enumeration with adsisearcher on $dest$ by $user$
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message: Remote system discovery enumeration with adsisearcher on $dest$ by $user_id$
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risk_objects:
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- field: dest
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type: system
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@@ -15,10 +15,14 @@ description: The following analytic detects an application attempting to connect
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within the network.
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data_source:
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- Sysmon EventID 11
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search: '`sysmon` EventCode=11 TargetFilename = "*\\Windows\\SchCache\\*" TargetFilename
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= "*.sch*" NOT (Image IN ("*\\Windows\\system32\\mmc.exe")) | stats count min(_time)
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as firstTime max(_time) as lastTime by action dest file_name file_path process_guid
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process_id user_id vendor_product Image | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
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search: |-
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`sysmon` EventCode=11 TargetFilename = "*\\Windows\\SchCache\\*" TargetFilename
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= "*.sch*" NOT (Image IN ("*\\Windows\\system32\\mmc.exe"))
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| stats count min(_time)
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as firstTime max(_time) as lastTime by action dest file_name file_path process_guid
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process_id user_id vendor_product process_name
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| `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)`
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| `schcache_change_by_app_connect_and_create_adsi_object_filter`'
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how_to_implement: To successfully implement this search, you need to be ingesting
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logs with the process name, parent process, and command-line executions from your
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@@ -44,7 +48,7 @@ drilldown_searches:
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earliest_offset: $info_min_time$
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latest_offset: $info_max_time$
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rba:
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message: process $Image$ create a file $TargetFilename$ in host $dest$
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message: Process $process_name$ created a file $file_name$ on host $dest$
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risk_objects:
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- field: dest
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type: system
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