Skip to content

Create impersonation_charter_spectrum.yml #3068

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 6 commits into
base: main
Choose a base branch
from

Conversation

ben-sublime
Copy link
Member

Description

Detects messages impersonating Charter Spectrum by using variations of 'Spectrum' or 'MyCharter' in the display name while not originating from legitimate Charter domains or failing DMARC authentication.

Associated samples

Associated hunts

@ben-sublime ben-sublime requested a review from a team as a code owner August 12, 2025 13:44
@ben-sublime ben-sublime added the in-test-rules PR is in our testing suite to collect telemetry label Aug 12, 2025
Added an exception for a third party mailer, ccsend.com
Reduced ccsend.com domain to root domain instead of spectrumbusiness.ccsend.com
Missed a comma in an array
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
in-test-rules PR is in our testing suite to collect telemetry
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant