Identifies process execution with a single character process name. This is often done by adversaries while staging or executing temporary utilities.
Rule type: eql
Risk score: 47
Runs every: 5m
Maximum alerts per execution: 100
- Threat Detection
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.
process where event.type in ("start", "process_started") and length(process.name) > 0 and length(process.name) == 5 and host.os.name == "Windows" and length(process.pe.original_file_name) > 5