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MediumSigmaHQSwachchhanda Shrawan Poudel (Nextron Systems)

Suspicious Cross-User Process Spawn

Detects suspicious spawning of a process under a different user context than the parent process. Processes such as notepad.exe, calculator etc. are generally spawned under the same user context and also they are…

Description

Detects suspicious spawning of a process under a different user context than the parent process. Processes such as notepad.exe, calculator etc. are generally spawned under the same user context and also they are often targeted as sacrificial process or decoy process to check successful privilege escalation.

Detection logic

Detection requirements

Platform
LinuxmacOSWindows

The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.

Log source product
windows
Log source category
process_creation

Known benign triggers

  • RunAs usage spawning one of the listed binaries under a different account

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