Sunturai
Back to results
UnknownMicrosoft Sentinel analytics

Top 10 External Senders (Malware)

Identifies the top 10 external sender addresses delivering inbound emails classified as malware. If you want to exclude your own organization's domains (including subdomains), add a filter after the malware filter,…

Description

Identifies the top 10 external sender addresses delivering inbound emails classified as malware. If you want to exclude your own organization's domains (including subdomains), add a filter after the malware filter, e.g.: | where SenderFromAddress !contains ".yourdomain.com" (Replace "yourdomain.com" with your actual domain.) Based on Defender for Office 365 workbook: https://techcommunity.microsoft.com/blog/microsoftdefenderforoffice365blog/part-2-build-custom-email-security-reports-and-dashboards-with-workbooks-in-micr/4411303

Detection logic

Detection requirements

Platform
Identity ProviderLinuxmacOSOffice SuiteSaaSWindows

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

Log source product
microsoftthreatprotection
Log source service
emailevents

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice