Fix FP Forest-Blizzard/proc_creation_win_apt_forest_blizzard_activity

[frack113]

Summary of the Pull Request

Rule match on all Get-ChildItem without the |all

Changelog

update: Forest Blizzard APT - Process Creation Activity

Example Log Event

Fixed Issues

SigmaHQ Rule Creation Conventions

• If your PR adds new rules, please consider following and applying these conventions