Add detection rule for Square QR code abuse#4539
Merged
Merged
Conversation
This rule detects messages from Square's marketing domain that contain suspicious QR codes redirecting to non-legitimate domains.
Member
Author
|
hunts look good, active campaign observed across several environments. multi-hunt results in ESC-14160 |
Removed reference to 'legitimate Square domains' in the description.
github-actions Bot
added a commit
that referenced
this pull request
May 26, 2026
…are marketing with suspicious QR code
Member
|
@peterdj45 the samples you provided don't match the current rule but the inclusion of the |
github-actions
Bot
added
the
in-test-rules
github-actions Bot
added a commit
that referenced
this pull request
May 26, 2026
…ith suspicious QR code
zoomequipd
requested changes
May 26, 2026
zoomequipd
approved these changes
May 26, 2026
zoomequipd
requested changes
May 26, 2026
Co-authored-by: Brandon Murphy <4827852+zoomequipd@users.noreply.github.com>
zoomequipd
approved these changes
May 26, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Description
This rule detects messages from Square's marketing domain that contain suspicious QR codes redirecting to non-legitimate domains.
Associated samples
Associated hunts