NRT Malicious Inbox Rule

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Often times after the initial compromise the attackers create inbox rules to delete emails that contain certain keywords. This is done so as to limit ability to warn compromised users that they've been compromised. Below is a sample query that tries to detect this. Reference: https://www.reddit.com/r/sysadmin/comments/7kyp0a/recent_phishing_attempts_my_experience_and_what/

Attribute Value
Type Analytic Rule
Solution Standalone Content
ID b79f6190-d104-4691-b7db-823e05980895
Severity Medium
Kind NRT
Tactics Persistence, DefenseEvasion
Techniques T1098, T1078
Required Connectors Office365
Source View on GitHub

Tables Used

This content item queries data from the following tables:

Table Selection Criteria Transformations Ingestion API Lake-Only
OfficeActivity OfficeWorkload == "Exchange" ?

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