Skip to content

Enhance USPS impersonation detection rule logic #3445

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.

Sign up for GitHub

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

Merged
merged 2 commits into from
Nov 5, 2025
Merged

Enhance USPS impersonation detection rule logic #3445

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
cfd70dc
Enhance USPS impersonation detection rule logic
peterdj45 Oct 30, 2025
ccf3f5b
Update impersonation_usps.yml
peterdj45 Nov 4, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 6 additions & 1 deletion detection-rules/impersonation_usps.yml
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,12 @@ type: "rule"
severity: "high"
source: |
type.inbound
and any(ml.logo_detect(file.message_screenshot()).brands, .name == "USPS")
and (
any(ml.logo_detect(file.message_screenshot()).brands, .name == "USPS")
or (
strings.ilike(sender.display_name, "USPS")
)
)
and length(body.links) > 0
and 2 of (
any(body.links,
Expand Down
Loading