rules/_deprecated/execution_command_shell_started_by_powershell.toml (37 lines of code) (raw):

[metadata] creation_date = "2020/02/18" deprecation_date = "2021/04/15" maturity = "deprecated" updated_date = "2021/04/15" [rule] author = ["Elastic"] description = "Identifies a suspicious parent child process relationship with cmd.exe descending from PowerShell.exe." from = "now-9m" index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"] language = "kuery" license = "Elastic License v2" name = "PowerShell spawning Cmd" risk_score = 21 rule_id = "0f616aee-8161-4120-857e-742366f5eeb3" severity = "low" tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution"] timestamp_override = "event.ingested" type = "query" query = ''' event.category:process and event.type:(start or process_started) and process.parent.name:powershell.exe and process.name:cmd.exe ''' [[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 = "T1059.001" name = "PowerShell" reference = "https://attack.mitre.org/techniques/T1059/001/" [rule.threat.tactic] id = "TA0002" name = "Execution" reference = "https://attack.mitre.org/tactics/TA0002/"