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https://github.com/splunk/security_content
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tccontre
69 lines
2.6 KiB
YAML
69 lines
2.6 KiB
YAML
name: Windows Remote Services Rdp Enable
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id: 8fbd2e88-4ea5-40b9-9217-fd0855e08cc0
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version: 1
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date: '2022-06-21'
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author: Teoderick Contreras, Splunk
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type: TTP
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datamodel:
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- Endpoint
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description: The following analytic is to identify a modification in the Windows registry
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to enable remote desktop protocol on a targeted machine. This technique was seen in several adversaries, malware or red teamer
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to remotely access the compromised or targeted host by enabling this protocol in registry. Even this protocol might be allowed in some
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production environment, This TTP behavior is a good pivot to check who and why the user want to enable this feature through registry which is un-common.
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search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime FROM datamodel=Endpoint.Registry
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where Registry.registry_path= "*\\Control\\Terminal Server\\fDenyTSConnections*" Registry.registry_value_data="0x00000000"
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by Registry.registry_key_name Registry.user Registry.registry_path Registry.registry_value_data Registry.action Registry.dest
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| `drop_dm_object_name(Registry)`
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| `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)`
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| `windows_remote_services_rdp_enable_filter`'
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how_to_implement: To successfully implement this search you need to be ingesting information
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on process that include the name of the process responsible for the changes from
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your endpoints into the `Endpoint` datamodel in the `Registry` node. Also make sure
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that this registry was included in your config files ex. sysmon config to be monitored.
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known_false_positives: administrators may enable or disable this feature that may cause some false positive.
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references:
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- https://www.hybrid-analysis.com/sample/9d6611c2779316f1ef4b4a6edcfdfb5e770fe32b31ec2200df268c3bd236ed75?environmentId=100
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tags:
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analytic_story:
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- Azorult
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asset_type: Endpoint
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cis20:
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- CIS 3
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- CIS 5
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- CIS 16
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confidence: 70
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context:
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- Source:Endpoint
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- Stage:Lateral Movement
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dataset:
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/azorult/sysmon.log
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impact: 70
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kill_chain_phases:
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- Exploitation
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message: the registry for rdp protocol was modified to enable in $dest$
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mitre_attack_id:
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- T1021.001
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- T1021
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nist:
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- DE.CM
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observable:
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- name: dest
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type: Endpoint
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role:
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- Victim
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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required_fields:
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- _time
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- Registry.registry_key_name
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- Registry.registry_path
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- Registry.user
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- Registry.dest
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- Registry.registry_value_name
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- Registry.action
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risk_score: 49
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security_domain: endpoint
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