# PhishDestroy threat dossier — 16421.xyz ================================================================ Fetched: 2026-07-22 09:09:03 UTC Canonical: https://phishdestroy.io/domain/16421.xyz/ ## VERDICT ---------------------------------------------------------------- CRITICAL THREAT — DO NOT VISIT Composite threat score: 100/100 (PhishDestroy scoring — see methodology below) ## DETECTION EVIDENCE ---------------------------------------------------------------- VirusTotal: 14/91 security vendors flagged this domain Flagging vendors: ADMINUSLabs, alphaMountain.ai, BitDefender, Chong Lua Dao, CRDF, CyRadar, Forcepoint ThreatSeeker, Fortinet, G-Data, Kaspersky, LevelBlue, Lionic, SOCRadar, Sophos AlienVault OTX: 1 pulses (threat-intel feed mentions) Public blocklists: listed on 1 independent blocklist ## INFRASTRUCTURE ---------------------------------------------------------------- IP address: 103.27.177.163 (HK, Mong Kok) ASN: AS135357 HONG KONG KOWLOON TELECOMMUNICATIONS CO.,LIMITED Hosting org: HONG KONG KOWLOON TELECOMMUNICATIONS CO., LIMITED Registrar: Dynadot Inc Nameservers: ["a4.share-dns.com", "b4.share-dns.net"] HTTP response: 200 ## TLS CERTIFICATE ---------------------------------------------------------------- Issuer: Let's Encrypt / YR1 Expires: 2026-09-12 Status: INVALID chain Fingerprint: afab63b835ae1f75a33fbde7ce0d2d31d6670afd9f3f87c527eb9addac55d32b Subject Alternative Names (related infrastructure — often same operator): - 16415.xyz - 16418.xyz - 16423.xyz - 16426.xyz - 16429.xyz - 16430.xyz - 16585.xyz - 64372.xyz - 64376.xyz - b27z.top - b28a.top - b28b.top - f27i.top - f27j.top - f27k.top ... +33 more ## ABUSE-REPORT HISTORY (evidence of registrar non-response) ---------------------------------------------------------------- Status: pending notification queue. No abuse reports filed yet — this domain is waiting for the next cycle of our automated abuse-reporter. ## TIMELINE ---------------------------------------------------------------- First detected: 2026-07-19 13:00:35 UTC (by PhishDestroy tracker) Last verified: 2026-07-22 08:20:22 UTC Current status: ACTIVE / observable ## ANALYST NARRATIVE ---------------------------------------------------------------- [Generated: 2026-07-19 19:32:46 UTC — narrative may predate facts above. Treat fields in TIMELINE / DETECTION EVIDENCE / INFRASTRUCTURE as authoritative if they differ from the prose below.] 16421.xyz Phishing Campaign Detected This domain, 16421.xyz, is currently active and has been identified as a phishing infrastructure. DNS resolution points to the IPv4 address 103.27.177.163, hosted on nameservers a4.share-dns.com and b4.share-dns.net. VirusTotal analysis shows that 14 of 91 security vendors have flagged the domain as malicious, indicating a moderate level of detection across the scanning community. The domain is listed on one public security blocklist and has been added to the PhishDestroy blocklist, confirming its use in malicious campaigns. AlienVault OTX reports a single threat‑intel pulse referencing the domain, further corroborating its involvement in phishing activity. The registration was performed through Dynadot Inc., but no additional registration details are publicly disclosed. No specific brand or service is reported as being impersonated, and the page content has not been analyzed, leaving the exact lure unknown. Infrastructure observations suggest a low‑profile hosting configuration typical of fast‑flux or disposable services. Defenders should block both the domain 16421.xyz and its resolved IP address 103.27.177.163 at perimeter firewalls and DNS filters. Continuous monitoring of the associated nameservers is advised, as they may be reused for future malicious sites. Adding the domain to internal threat‑intel feeds and sharing the indicators with upstream security communities will improve collective detection. Given the active status and existing vendor detections, the risk level remains high and immediate remediation is recommended. ## EVIDENCE HASHES ---------------------------------------------------------------- TLS cert SHA-256: afab63b835ae1f75a33fbde7ce0d2d31d6670afd9f3f87c527eb9addac55d32b ## SCORING METHODOLOGY ---------------------------------------------------------------- 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 ---------------------------------------------------------------- Full HTML report: https://phishdestroy.io/domain/16421.xyz/ JSON API: https://api.destroy.tools/v1/check?domain=16421.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: 187,759 domains (57,336 alive under monitoring, 128,779 confirmed takedowns/dead). Site: https://phishdestroy.io