cloudflare/Azure-Sentinel
Publicmirrored fromhttps://github.com/cloudflare/Azure-Sentinel
Detections/ASimProcess/NewEXEdeployedviaDefaultDomainorDefaultDomainControllerPolicies(ASIMVersion).yaml
41lines · modecode
unknown
| 1 | id: 0dd2a343-4bf9-4c93-a547-adf3658ddaec |
| 2 | name: New EXE deployed via Default Domain or Default Domain Controller Policies (ASIM Version) |
| 3 | description: | |
| 4 | 'This detection highlights executables deployed to hosts via either the Default Domain or Default Domain Controller Policies. These policies apply to all hosts or Domain Controllers and best practice is that these policies should not be used for deployment of files. |
| 5 | A threat actor may use these policies to deploy files or scripts to all hosts in a domain. |
| 6 | This query uses the ASIM parsers and will need them deployed before usage - https://docs.microsoft.com/azure/sentinel/normalization' |
| 7 | severity: High |
| 8 | requiredDataConnectors: |
| 9 | - connectorId: SecurityEvents |
| 10 | dataTypes: |
| 11 | - SecurityEvents |
| 12 | queryFrequency: 1d |
| 13 | queryPeriod: 14d |
| 14 | triggerOperator: gt |
| 15 | triggerThreshold: 0 |
| 16 | tactics: |
| 17 | - Execution |
| 18 | - LateralMovement |
| 19 | relevantTechniques: |
| 20 | - T1072 |
| 21 | - T1570 |
| 22 | query: | |
| 23 | let known_processes = ( |
| 24 | imProcess |
| 25 | // Change these values if adjusting Query Frequency or Query Period |
| 26 | | where TimeGenerated between(ago(14d)..ago(1d)) |
| 27 | | where Process has_any ("Policies\\{6AC1786C-016F-11D2-945F-00C04fB984F9}", "Policies\\{31B2F340-016D-11D2-945F-00C04FB984F9}") |
| 28 | | summarize by Process); |
| 29 | imProcess |
| 30 | // Change these values if adjusting Query Frequency or Query Period |
| 31 | | where TimeGenerated > ago(1d) |
| 32 | | where Process has_any ("Policies\\{6AC1786C-016F-11D2-945F-00C04fB984F9}", "Policies\\{31B2F340-016D-11D2-945F-00C04FB984F9}") |
| 33 | | where Process !in (known_processes) |
| 34 | | summarize FirstSeen=min(TimeGenerated), LastSeen=max(TimeGenerated) by Process, CommandLine, DvcHostname |
| 35 | entityMappings: |
| 36 | - entityType: Host |
| 37 | fieldMappings: |
| 38 | - identifier: HostName |
| 39 | columnName: DvcHostname |
| 40 | version: 1.0.2 |
| 41 | kind: Scheduled |