[metadata] creation_date = "2020/03/18" maturity = "production" updated_date = "2021/03/03" [rule] author = ["Elastic"] description = """ Identifies the SYSTEM account using an account discovery utility. This could be a sign of discovery activity after an adversary has achieved privilege escalation. """ from = "now-9m" index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"] language = "kuery" license = "Elastic License v2" name = "Net command via SYSTEM account" risk_score = 21 rule_id = "2856446a-34e6-435b-9fb5-f8f040bfa7ed" severity = "low" tags = ["Elastic", "Host", "Windows", "Threat Detection", "Discovery"] timestamp_override = "event.ingested" type = "query" query = ''' event.category:process and event.type:(start or process_started) and (process.name:(whoami.exe or net.exe) or process.name:net1.exe and not process.parent.name:net.exe) and user.name:SYSTEM ''' [[rule.threat]] framework = "MITRE ATT&CK" [[rule.threat.technique]] id = "T1087" name = "Account Discovery" reference = "https://attack.mitre.org/techniques/T1087/" [rule.threat.tactic] id = "TA0007" name = "Discovery" reference = "https://attack.mitre.org/tactics/TA0007/"