Forum Discussion
LukeCage
Jun 15, 2025Copper Contributor
Tuning a defender alert
Hi all, I'm looking for some guidance on tuning a Microsoft Defender alert. I've received an alert that gets triggered when an encoded PowerShell command is executed. I attempted to suppress it by ...
Matt-Apps4Rent
Jun 16, 2025Iron Contributor
You might want to double-check if the custom rule exactly matches the alert details sometimes even a small difference in the command or context can cause it to trigger again. Also, make sure the rule is applied to the right device group or user. Defender alerts can be behavior-based too, so even if the command is the same, a different execution context might still flag it. Instead of just suppressing, try using Advanced Hunting to better understand the activity pattern and fine-tune your rule accordingly.