Sigma medium test sigma

Remove Scheduled Cron Task/Job

Detects usage of the 'crontab' utility to remove the current crontab. This is a common occurrence where cryptocurrency miners compete against each other by removing traces of other miners to hijack the maximum amount of resources possible

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Detection Logic

{
  "selection": {
    "Image
| endswith": "crontab",
    "CommandLine
| contains": " -r"
  },
  "condition": "selection"
}

False Positives

  • ⚠ Unknown

Field Validations

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