# PhishDestroy threat dossier — 16821.xyz
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Fetched:   2026-07-24 00:00:56 UTC
Canonical: https://phishdestroy.io/domain/16821.xyz/

## VERDICT
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CRITICAL THREAT — DO NOT VISIT
Composite threat score: 100/100 (PhishDestroy scoring — see methodology below)

## DETECTION EVIDENCE
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VirusTotal:      16/91 security vendors flagged this domain
  Flagging vendors: alphaMountain.ai, BitDefender, Chong Lua Dao, CRDF, CyRadar, ESET, Forcepoint ThreatSeeker, Fortinet, G-Data, Kaspersky, LevelBlue, Lionic, SOCRadar, Sophos, VIPRE, Webroot
Public blocklists: listed on 1 independent blocklist

## INFRASTRUCTURE
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IP address:      103.27.177.164 (HK, Mong Kok)
ASN:             AS135357 HONG KONG KOWLOON TELECOMMUNICATIONS CO.,LIMITED
Hosting org:     HONG KONG KOWLOON TELECOMMUNICATIONS CO., LIMITED
Registrar:       GMO Internet Group, Inc. d/b/a Onamae.com
Nameservers:     ["a4.share-dns.com", "b4.share-dns.net"]

## TLS CERTIFICATE
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Issuer:     Let's Encrypt / YR1
Expires:    2026-09-12
Status:     INVALID chain
Fingerprint: 6d8bfcc68ccb61549791ea6044cb9c6c452b2d260274c87798fd05a5988b9405
Subject Alternative Names (related infrastructure — often same operator):
  - 16761.xyz
  - 16764.xyz
  - 16767.xyz
  - 16769.xyz
  - 16770.xyz
  - 16771.xyz
  - 16772.xyz
  - 16773.xyz
  - 16774.xyz
  - 16776.xyz
  - 16779.xyz
  - 16780.xyz
  - 16782.xyz
  - 16783.xyz
  - 16784.xyz
  ... +82 more

## 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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First detected:    2026-07-19 13:00:28 UTC (by PhishDestroy tracker)
Last verified:     2026-07-24 00:22:01 UTC
Current status:    ACTIVE / observable

## ANALYST NARRATIVE
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[Generated: 2026-07-19 20:19:20 UTC — narrative may predate facts above. Treat fields in TIMELINE / DETECTION EVIDENCE / INFRASTRUCTURE as authoritative if they differ from the prose below.]

Warning: High-Risk Phishing Domain 16821.xyz Active Now

Analysis indicates that the domain 16821.xyz is currently active and poses a high risk as a phishing threat. The domain resolves to the IP address 103.27.177.164, which may be associated with malicious activities. This domain is flagged by 16 out of 91 security vendors on VirusTotal, highlighting a significant concern regarding its use in phishing. Furthermore, it is blocked by the PhishDestroy service and appears on one recognized security blocklist. The HTTP status code returned by the domain is 200, indicating that the server is operational and serving content. Defenders should consider implementing measures to block traffic to this domain and educate users about the potential risks associated with it. Given the current status and intelligence available, ongoing monitoring and threat intelligence updates are recommended to mitigate any possible phishing attempts associated with this domain.

## EVIDENCE HASHES
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TLS cert SHA-256:      6d8bfcc68ccb61549791ea6044cb9c6c452b2d260274c87798fd05a5988b9405

## 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/16821.xyz/
JSON API:          https://api.destroy.tools/v1/check?domain=16821.xyz
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: 188,963 domains (58,390 alive under monitoring, 128,955 confirmed takedowns/dead). Site: https://phishdestroy.io