# PhishDestroy threat dossier — qrsu.io
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Fetched:   2026-07-15 01:46:56 UTC
Canonical: https://phishdestroy.io/domain/qrsu.io/

## VERDICT
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ACTIVE + CLOAKED — returns HTTP 666 to scanners, real fraudulent site to victims
Composite threat score: 100/100 (PhishDestroy scoring — see methodology below)
Cloaking: DETECTED — domain returns custom HTTP 666 to scanners while serving fraudulent content to real users (type: content_split) (score: 1/6)

## DETECTION EVIDENCE
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VirusTotal:      17/94 security vendors flagged this domain
  Flagging vendors: Abusix, ADMINUSLabs, alphaMountain.ai, BitDefender, Chong Lua Dao, CyRadar, DNS8, ESET, Forcepoint ThreatSeeker, Fortinet, G-Data, Lionic, Seclookup, SOCRadar, Sophos, VIPRE, Webroot
AlienVault OTX:  26 pulses (threat-intel feed mentions)
Public blocklists: listed on 1 independent blocklist

## INFRASTRUCTURE
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IP address:      76.76.21.21 (US, Walnut)
ASN:             AS16509 Amazon.com, Inc.
Hosting org:     Vercel, Inc
Registered:      2026-03-24
Page title:      Attention Required! | Cloudflare
HTTP response:   200

## ABUSE-REPORT HISTORY (evidence of registrar non-response)
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Status: pending notification queue. No abuse reports filed yet — this domain is
waiting for the next cycle of our automated abuse-reporter.

## TIMELINE
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Domain registered: 2026-03-24 (per WHOIS / CT — may reflect a renewal or transfer date, not first-ever registration)
First detected:    2026-03-24 17:22:25 UTC (by PhishDestroy tracker)
First reported:    2026-06-15 00:27:29 UTC (abuse notice filed)
Last verified:     2026-07-15 01:22:17 UTC
Neutralised:       2026-07-11 04:40:19 UTC
Current status:    ACTIVE — cloaked behind HTTP 666 to evade scanners

## EXTERNAL CORROBORATION (third-party evidence)
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URLQuery:         https://urlquery.net/report/d5e9ef23-d540-48b1-b60d-228fa596f429
Wayback Machine:  https://web.archive.org/web/*/qrsu.io
crt.sh CT logs:   https://crt.sh/?q=%25.qrsu.io
Google transparency: https://transparencyreport.google.com/safe-browsing/search?url=qrsu.io
AlienVault OTX:   https://otx.alienvault.com/indicator/domain/qrsu.io
URLhaus:          https://urlhaus.abuse.ch/host/qrsu.io/

## ANALYST NARRATIVE
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[Generated: 2026-06-26 00:24:40 UTC — narrative may predate facts above. Treat fields in TIMELINE / DETECTION EVIDENCE / INFRASTRUCTURE as authoritative if they differ from the prose below.]

This domain is flagged as a credential harvesting phishing site targeting user authentication credentials. Analysis indicates an elevated risk level due to its active exploitation attempts and detection by multiple security mechanisms. The infrastructure appears designed to mimic legitimate services while harvesting sensitive login information.  Infrastructure analysis reveals the domain qrsu.io was registered on March 24, 2026, with 17 out of 95 security vendors on VirusTotal marking it as malicious. The page title 'Attention Required! | Cloudflare' suggests an attempt to impersonate Cloudflare security challenges, a common tactic to deceive users into entering credentials. The domain appears on one security blocklist and was previously blocked by automated phishing detection systems. No additional registrar or IP details were provided in available intelligence.  Mitigation steps include immediate blocking of the domain across all network security controls, including firewalls, email gateways, and endpoint protection systems. Security teams should review logs for connections to qrsu.io and investigate any credential submissions from users who may have interacted with the domain. User awareness training should emphasize the risks of entering credentials on pages displaying Cloudflare or similar security challenge prompts from untrusted sources. Reset credentials for any accounts potentially exposed to this phishing attempt.

## EVIDENCE HASHES
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Favicon MD5:       7c9374b4987d3acae108156ee1dab30e

## SCORING METHODOLOGY
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Composite score is NOT derived from VirusTotal alone. PhishDestroy aggregates:
  - VirusTotal positive ratio
  - Public blocklist consensus (MetaMask, ScamSniffer, OpenPhish, PhishTank, URLhaus,
    CryptoFirewall, SEAL, Polkadot, Enkrypt, Phishunt, DiscordPhishing, PhishingDB)
  - Cloaking detection (HTTP 666 or rendering delta between bot and real visitor)
  - DNS-filter consensus (Quad9, CleanBrowsing, NextDNS, AdGuard, Cloudflare, etc.)
  - AlienVault OTX pulses + Cloudflare Radar + Google Safe Browsing
  - URLScan / URLQuery verdicts
  - Brand-impersonation heuristics (DOM analysis of forms, logos, wording)
  - Known phishing-kit fingerprinting (favicon hash, JS obfuscation signatures)
  - Wallet-drainer family classification (Angel, MS, Rainbow, Pink, Inferno, ...)
  - Free-TLS vs paid-cert ratio (throwaway infrastructure signal)
  - Registrar/hosting abuse history (this registrar's track record)
  - Human researcher sign-off (operator takedown team)

A domain present in our database is ALREADY flagged. A low VT count by itself does
NOT mean the domain is safe — new scam domains routinely show 0/95 VT for their
first 7–30 days while actively draining wallets. Always cross-reference the composite
score and the individual indicators above, not just VT.

## CORRECTIONS / APPEALS
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Full HTML report:  https://phishdestroy.io/domain/qrsu.io/
JSON API:          https://api.destroy.tools/v1/check?domain=qrsu.io
Appeal a flag:     https://phishdestroy.io/appeals/  (responded to within 48 hours, FP rate <0.01%)
Submit a report:   https://t.me/PhishDestroy_bot

About PhishDestroy: independent open-source threat-intelligence platform.
Tracked: 178,930 domains (50,535 alive under monitoring, 128,395 confirmed takedowns/dead). Site: https://phishdestroy.io