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Create impersonation_display_name_cred_theft_image.yml#4000

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D-Bolton merged 5 commits intomainfrom
daniel.fn.ESC-6769.FN--BEC-impersonation-spoofing-org
Feb 17, 2026
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Create impersonation_display_name_cred_theft_image.yml#4000
D-Bolton merged 5 commits intomainfrom
daniel.fn.ESC-6769.FN--BEC-impersonation-spoofing-org

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@D-Bolton
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@D-Bolton D-Bolton commented Feb 10, 2026

Description

Sender display name contains the recipient's organization domain while the actual email address differs. Message includes a single image attachment with OCR-detected credential theft language referencing the recipient's domain, and has minimal or no body text.

Associated samples

Associated hunts

  • Hunt 1
  • 18 Customer Hunts in ESC-6769

@D-Bolton D-Bolton marked this pull request as ready for review February 10, 2026 20:53
@D-Bolton D-Bolton requested a review from a team February 10, 2026 20:53
@D-Bolton D-Bolton requested a review from a team as a code owner February 10, 2026 20:53
@github-actions github-actions bot added the in-test-rules PR is in our testing suite to collect telemetry label Feb 10, 2026
github-actions bot added a commit that referenced this pull request Feb 10, 2026
…r display name with credential theft image
github-actions bot added a commit that referenced this pull request Feb 10, 2026
…on in sender display name with credential theft image
@D-Bolton D-Bolton added the review-needed Indicates that a PR is waiting for review label Feb 11, 2026
@IndiaAce
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I'm not seeing any telemetry in test rules, do you think we should maybe wait another day or so just to validate that our matches are within the intended scope of the rule?

@D-Bolton
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I'm not seeing any telemetry in test rules, do you think we should maybe wait another day or so just to validate that our matches are within the intended scope of the rule?

@IndiaAce We can wait another day if you want! The hunts looked promising so hopefully test rules will be the same.

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Spoke with @D-Bolton directly about this, he'll implement changes.

@zoomequipd zoomequipd removed the review-needed Indicates that a PR is waiting for review label Feb 13, 2026
@D-Bolton D-Bolton requested a review from zoomequipd February 13, 2026 20:32
github-actions bot added a commit that referenced this pull request Feb 13, 2026
…Recipient organization in sender display name with credential theft image
github-actions bot added a commit that referenced this pull request Feb 13, 2026
…ization in sender display name with credential theft image
github-actions bot added a commit that referenced this pull request Feb 13, 2026
…Recipient organization in sender display name with credential theft image
github-actions bot added a commit that referenced this pull request Feb 13, 2026
…ization in sender display name with credential theft image
@D-Bolton D-Bolton added the review-needed Indicates that a PR is waiting for review label Feb 13, 2026
@D-Bolton D-Bolton added this pull request to the merge queue Feb 17, 2026
Merged via the queue into main with commit 3c44abc Feb 17, 2026
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@D-Bolton D-Bolton deleted the daniel.fn.ESC-6769.FN--BEC-impersonation-spoofing-org branch February 17, 2026 19:07
github-actions bot added a commit that referenced this pull request Feb 17, 2026
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3 participants