[metadata] creation_date = "2021/01/13" integration = ["endpoint"] maturity = "development" min_stack_comments = "New fields added: required_fields, related_integrations, setup" min_stack_version = "8.3.0" updated_date = "2023/10/19" [rule] author = ["Elastic"] description = """ Identifies when a Python script is executed using command line input and imports the sys module. Attackers often use this method to execute malicious scripts and avoiding writing it to disk. """ false_positives = ["Legitimate Python scripting activity."] from = "now-9m" index = ["auditbeat-*", "logs-endpoint.events.*"] language = "eql" license = "Elastic License v2" name = "Python Script Execution via Command Line" risk_score = 47 rule_id = "ee9f08dc-cf80-4124-94ae-08c405f059ae" setup = """ If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until version 8.2. Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate `event.ingested` to @timestamp. For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html """ severity = "medium" tags = ["Domain: Endpoint", "OS: Linux", "OS: macOS", "OS: Windows", "Use Case: Threat Detection", "Tactic: Execution", "Data Source: Elastic Defend"] timestamp_override = "event.ingested" type = "eql" query = ''' process where event.type in ("start", "process_started") and process.name : "python*" and process.args : "-c" and process.args : "*import*sys*" ''' [[rule.threat]] framework = "MITRE ATT&CK" [[rule.threat.technique]] id = "T1059" name = "Command and Scripting Interpreter" reference = "https://attack.mitre.org/techniques/T1059/" [[rule.threat.technique.subtechnique]] id = "T1059.006" name = "Python" reference = "https://attack.mitre.org/techniques/T1059/006/" [[rule.threat.technique.subtechnique]] id = "T1059.003" name = "Windows Command Shell" reference = "https://attack.mitre.org/techniques/T1059/003/" [rule.threat.tactic] id = "TA0002" name = "Execution" reference = "https://attack.mitre.org/tactics/TA0002/"