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Eric
93 lines
4.6 KiB
YAML
93 lines
4.6 KiB
YAML
name: Windows NirSoft AdvancedRun
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id: bb4f3090-7ae4-11ec-897f-acde48001122
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version: 8
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date: '2025-05-02'
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author: Michael Haag, Splunk
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status: production
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type: TTP
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description: The following analytic detects the execution of AdvancedRun.exe, a tool
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with capabilities similar to remote administration programs like PsExec. It identifies
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the process by its name or original file name and flags common command-line arguments.
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This detection leverages data from Endpoint Detection and Response (EDR) agents,
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focusing on process and command-line telemetry. Monitoring this activity is crucial
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as AdvancedRun can be used for remote code execution and configuration-based automation.
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If malicious, this could allow attackers to execute arbitrary commands, escalate
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privileges, or maintain persistence within the environment.
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data_source:
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- Sysmon EventID 1
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- Windows Event Log Security 4688
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- CrowdStrike ProcessRollup2
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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.process_name=advancedrun.exe
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OR Processes.original_file_name=advancedrun.exe) Processes.process IN ("*EXEFilename*","*/cfg*","*RunAs*",
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"*WindowState*") by Processes.action Processes.dest Processes.original_file_name
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Processes.parent_process Processes.parent_process_exec Processes.parent_process_guid
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Processes.parent_process_id Processes.parent_process_name Processes.parent_process_path
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Processes.process Processes.process_exec Processes.process_guid Processes.process_hash
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Processes.process_id Processes.process_integrity_level Processes.process_name Processes.process_path
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Processes.user Processes.user_id Processes.vendor_product | `drop_dm_object_name(Processes)`
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| `security_content_ctime(firstTime)`| `security_content_ctime(lastTime)` | `windows_nirsoft_advancedrun_filter`'
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how_to_implement: The detection is based on data that originates from Endpoint Detection
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and Response (EDR) agents. These agents are designed to provide security-related
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telemetry from the endpoints where the agent is installed. To implement this search,
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you must ingest logs that contain the process GUID, process name, and parent process.
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Additionally, you must ingest complete command-line executions. These logs must
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be processed using the appropriate Splunk Technology Add-ons that are specific to
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the EDR product. The logs must also be mapped to the `Processes` node of the `Endpoint`
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data model. Use the Splunk Common Information Model (CIM) to normalize the field
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names and speed up the data modeling process.
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known_false_positives: False positives should be limited as it is specific to AdvancedRun.
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Filter as needed based on legitimate usage.
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references:
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- http://www.nirsoft.net/utils/advanced_run.html
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- https://www.microsoft.com/security/blog/2022/01/15/destructive-malware-targeting-ukrainian-organizations/
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drilldown_searches:
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- name: View the detection results for - "$user$" and "$dest$"
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search: '%original_detection_search% | search user = "$user$" dest = "$dest$"'
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earliest_offset: $info_min_time$
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latest_offset: $info_max_time$
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- name: View risk events for the last 7 days for - "$user$" and "$dest$"
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search: '| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$user$",
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"$dest$") starthoursago=168 | stats count min(_time) as firstTime max(_time)
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as lastTime values(search_name) as "Search Name" values(risk_message) as "Risk
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Message" values(analyticstories) as "Analytic Stories" values(annotations._all)
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as "Annotations" values(annotations.mitre_attack.mitre_tactic) as "ATT&CK Tactics"
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by normalized_risk_object | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`'
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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: An instance of advancedrun.exe, $process_name$, was spawned by $parent_process_name$
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on $dest$ by $user$.
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risk_objects:
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- field: user
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type: user
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score: 60
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- field: dest
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type: system
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score: 60
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threat_objects:
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- field: parent_process_name
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type: parent_process_name
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- field: process_name
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type: process_name
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tags:
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analytic_story:
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- Ransomware
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- Unusual Processes
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- Data Destruction
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- WhisperGate
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asset_type: Endpoint
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mitre_attack_id:
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- T1588.002
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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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security_domain: endpoint
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tests:
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- name: True Positive Test
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attack_data:
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- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1588.002/atomic_red_team/windows-sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: XmlWinEventLog
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