Identifies an unexpected executable file being created or modified by a Windows system critical process, which may indicate activity related to remote code execution or other forms of exploitation.
Rule type: eql
Risk score: 73
Runs every: 5m
Maximum alerts per execution: 100
- Threat Detection
- Defense Evasion
Rule license: Elastic License v2
## Config 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 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
file where event.type != "deletion" and file.extension : ("exe", "dll") and process.name : ("smss.exe", "autochk.exe", "csrss.exe", "wininit.exe", "services.exe", "lsass.exe", "winlogon.exe", "userinit.exe", "LogonUI.exe")
Framework: MITRE ATT&CKTM