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Refactor keywords in Cloud service with credential theft language #4527

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Refactor keywords in Cloud service with credential theft language #4527

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Refactor keywords in Cloud service with credential theft language
cybher0808 May 21, 2026
612fecd
Auto-format MQL and add rule IDs
May 21, 2026
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6 changes: 3 additions & 3 deletions detection-rules/link_credential_phishing_cloud_service.yml
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Original file line number Diff line number Diff line change
@@ -1,12 +1,12 @@
name: "Link: Cloud service with credential theft language"
description: "Detects messages impersonating cloud services that contain high-confidence credential theft language and file sharing topics. The message starts with 'Cloud' or a cloud emoji, contains links to external domains not matching the sender's domain, and lacks recipient identification entities."
name: "Impersonation Link: Cloud branding service with credential theft language"
description: "Detects messages impersonating cloud services that contain high-confidence credential theft language and file sharing topics. The message starts with 'Cloud' or a cloud emoji or Cloud+ text, contains links to external domains not matching the sender's domain, and lacks recipient identification entities."
type: "rule"
severity: "medium"
source: |
type.inbound
and (
any([body.current_thread.text, body.html.inner_text],
strings.starts_with(., 'Cloud')
strings.starts_with(., 'Cloud') or strings.icontains(., "Cloud+")
)
// cloud emoji
or regex.contains(body.current_thread.text, '^\x{2601}')
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