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MediumSigmaHQSwachchhanda Shrawan Poudel (Nextron Systems)

Scheduled Task Creation with Curl and PowerShell Execution Combo

Detects the creation of a scheduled task using schtasks.exe, potentially in combination with curl for downloading payloads and PowerShell for executing them. This facilitates executing malicious payloads or…

Description

Detects the creation of a scheduled task using schtasks.exe, potentially in combination with curl for downloading payloads and PowerShell for executing them. This facilitates executing malicious payloads or connecting with C&C server persistently without dropping the malware sample on the host.

Detection logic

Detection requirements

Platform
ESXiLinuxmacOSNetwork DevicesWindows

The rule states no platform. This is derived from the 3 ATT&CK techniques it maps to.

Log source product
windows
Log source category
process_creation

Known benign triggers

  • Automation scripts combining curl and PowerShell in controlled environments.
  • Legitimate use of schtasks for administrative purposes.

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