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P4T12ICK
64 lines
2.1 KiB
YAML
64 lines
2.1 KiB
YAML
name: Web Servers Executing Suspicious Processes
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id: ec3b7601-689a-4463-94e0-c9f45638efb9
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version: 1
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date: '2019-04-01'
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author: David Dorsey, Splunk
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type: TTP
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datamodel:
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- Endpoint
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description: This search looks for suspicious processes on all systems labeled as
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web servers.
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search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
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as lastTime from datamodel=Endpoint.Processes where Processes.dest_category="web_server"
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AND (Processes.process="*whoami*" OR Processes.process="*ping*" OR Processes.process="*iptables*"
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OR Processes.process="*wget*" OR Processes.process="*service*" OR Processes.process="*curl*")
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by Processes.process Processes.process_name, Processes.dest Processes.user| `drop_dm_object_name(Processes)`
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| `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `web_servers_executing_suspicious_processes_filter`'
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how_to_implement: You must be ingesting data that records process activity from your
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hosts to populate the Endpoint data model in the Processes node. You must also be
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ingesting logs with both the process name and command line from your endpoints.
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The command-line arguments are mapped to the "process" field in the Endpoint data
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model. In addition, web servers will need to be identified in the Assets and Identity
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Framework of Enterprise Security.
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known_false_positives: Some of these processes may be used legitimately on web servers
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during maintenance or other administrative tasks.
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references: []
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tags:
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analytic_story:
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- Apache Struts Vulnerability
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asset_type: Web Server
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cis20:
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- CIS 3
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kill_chain_phases:
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- Actions on Objectives
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mitre_attack_id:
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- T1082
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nist:
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- PR.IP
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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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- Processes.dest_category
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- Processes.process
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- Processes.process_name
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- Processes.dest
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- Processes.user
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security_domain: endpoint
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confidence: 50
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impact: 50
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risk_score: 25
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context: []
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message: tbd
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observable:
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- name: user
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type: User
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role:
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- Victim
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- name: dest
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type: Hostname
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role:
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- Victim
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