High Severity

Link: Landing page with search-ms protocol redirect

Description

Detects messages containing URL shortener links that redirect to search-ms protocol queries, which can be used to execute local file searches on Windows systems.

References

No references.

Sublime Security
Created Apr 7th, 2026 • Last updated Apr 7th, 2026
Source
type.inbound
and all(body.links, .href_url.domain.root_domain in $url_shorteners)
and any(body.links,
        regex.icontains(ml.link_analysis(., mode="aggressive").final_dom.raw,
                        'search-ms:[^\;]*query=[^\;]+\.lnk'
        )
)
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