High Severity

Link: Flare-branded credential harvesting via Cloudflare tunnels

Labels

Credential Phishing
Free subdomain host
Social engineering
Content analysis
URL analysis

Description

Detects inbound messages that begin with 'Flare' branding (such as FlareDoc, FlareAudio, FlareBill, FlareReport) and contain links to trycloudflare.com domains. This pattern represents a consistent actor template using Cloudflare tunnels for credential harvesting operations.

References

No references.

Sublime Security
Created Jun 12th, 2026 • Last updated Jun 12th, 2026
Feed Source
Sublime Core Feed
Source
GitHub
type.inbound
and strings.starts_with(body.current_thread.text, 'Flare') 
and any(body.links, .href_url.domain.root_domain == "trycloudflare.com")
MQL Rule Console
•Docs•Learning Labs

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