Name:Network Traffic to Active Directory Web Services Protocol id:68a0056c-34cb-455f-b03d-df935ea62c4f version:4 date:2024-10-17 author:Michael Haag, Splunk status:production type:Hunting Description:The following analytic identifies network traffic directed to the Active Directory Web Services Protocol (ADWS) on port 9389. It leverages network traffic logs, focusing on source and destination IP addresses, application names, and destination ports. This activity is significant as ADWS is used to manage Active Directory, and unauthorized access could indicate malicious intent. If confirmed malicious, an attacker could manipulate Active Directory, potentially leading to privilege escalation, unauthorized access, or persistent control over the environment. Data_source:
-Sysmon EventID 3
search:| tstats count from datamodel=Network_Traffic where All_Traffic.dest_port=9389 by All_Traffic.src_ip, All_Traffic.dest_ip, All_Traffic.app, All_Traffic.user, All_Traffic.dest_port | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `drop_dm_object_name("All_Traffic")` | `network_traffic_to_active_directory_web_services_protocol_filter`
how_to_implement:The detection is based on data that originates from network traffic logs. The logs must contain the source and destination IP addresses, the application name, and the destination port. The logs must be processed using the appropriate Splunk Technology Add-ons that are specific to the network traffic data source. The logs must also be mapped to the `Network_Traffic` data model. Use the Splunk Common Information Model (CIM) to normalize the field names and speed up the data modeling process. known_false_positives:False positives should be limited as the destination port is specific to Active Directory Web Services Protocol, however we recommend utilizing this analytic to hunt for non-standard processes querying the ADWS port. Filter by App or dest_ip to AD servers and remove known proceses querying ADWS. References: -https://github.com/FalconForceTeam/SOAPHound drilldown_searches:
: tags: analytic_story: - 'Windows Discovery Techniques' asset_type:Network atomic_guid: confidence:50 impact:20 message:Network traffic to Active Directory Web Services Protocol was identified on $dest_ip$ by $src_ip$. mitre_attack_id: - 'T1087.002' - 'T1069.001' - 'T1482' - 'T1087.001' - 'T1087' - 'T1069.002' - 'T1069' observable: name:'src_ip' type:'IP Address' - role: - 'Attacker' name:'dest_ip' type:'IP Address' - role: - 'Victim' product: - 'Splunk Enterprise' - 'Splunk Enterprise Security' - 'Splunk Cloud' risk_score:10 required_fields: - 'All_Traffic.src_ip' - 'All_Traffic.dest_ip' - 'All_Traffic.app' - 'All_Traffic.user' - 'All_Traffic.dest_port' security_domain:endpoint
