tetherdapp.cloud is an impersonation phishing page that presented itself under the title 'Tether Dapp', borrowing the name of the company behind the USDT stablecoin. Tether does not need a separate 'dapp' for holders to use their tokens, which makes the name itself a lure aimed at USDT holders and wallet users. PhishDestroy first saw the domain on 2026-08-26. It has been offline since 2026-09-08, and its DNS was still inactive when we last checked on 2026-10-19.
How the scam works
Pages built around a fake 'Tether Dapp' usually promise a USDT feature such as staking, rewards, an airdrop claim or a wallet check, then push the visitor to connect a wallet. From there the operator's goal is to get the victim to sign a token approval or transaction, or to type in a recovery phrase on a fake verification form. Either one gives the attacker control over the victim's USDT and other assets, and transfers on-chain cannot be reversed.
Evidence
Eight of 90 VirusTotal engines flagged the domain as of 2026-09-06: alphaMountain.ai, CRDF, Forcepoint ThreatSeeker, Fortinet, Gridinsoft, PhishFort, SOCRadar and VIPRE. That is a modest share, but it includes PhishFort, a crypto-focused anti-phishing service. Spamhaus lists the domain in its DBL under the phishing category, which affects mail and DNS filtering. The domain appears in four AlienVault OTX threat pulses and on the PhishDestroy blocklist.
Infrastructure
The domain was registered through Namecheap. It was hosted on Amazon cloud infrastructure in Singapore, which let the operator spin up a page quickly and drop it just as fast. The site was carrying traffic for less than two weeks after we first detected it. It had a valid TLS certificate from the E5 issuer, so the browser padlock showed nothing unusual and was no sign that the site was legitimate.
What to do
If you connected a wallet to this site, use a token-approval checker to revoke any allowances you granted there. If you typed in your seed phrase or recovery phrase, treat that wallet as compromised. Create a new wallet with a new phrase and move any remaining funds to it right away. Reach Tether services only through bookmarks you created yourself, and ignore links promising USDT rewards or claims. Defenders should block the domain at DNS and the mail gateway, add it to watchlists in case it comes back online, and search logs for traffic to it between 2026-08-26 and 2026-09-08.
IoC Extractionscanned 2026年9月21日1 wallet · 1 Telegram IoCs
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ICANN OVERSIGHT
認定と RAA の背景
Registrar accreditation and DNS abuse obligations
For this gTLD, the registrar above operates under an ICANN accreditation agreement. The links below provide the official fee schedule and current DNS abuse compliance guidance.
Accreditation is a contract, not a safety certification.
RAA §3.18 establishes abuse-contact and handling requirements. This report can document stored outbound notices and later technical observations; it does not by itself establish receipt, investigation, remediation, or contractual non-compliance.
Saved certificate metadata. Certificate dates without a timezone are shown as stored. Transport encryption does not establish that the site is trustworthy.
Primary outcomeDNS 非アクティブreason: DNS NXDOMAIN80% confidence
Attributionsource: Dns Cache
Evidence layersAvailability: DNS inactiveContent: UnreachableDNS: NXDOMAINRegistration: Unknown
Latest HTTP observation不明Probe Inconclusive20%2026-10-19 01:12:24 UTC
RDAP registration不明
Observed timelinelast reachable: 2026-08-26 17:28:21 UTCcurrent episode first observed: 2026-09-30 16:14:55 UTCobserved RIP window: 2026-08-26 17:28:21 UTC → 2026-09-30 16:14:55 UTC · 838.78hmidpoint estimate ≈ 2026-09-13 04:51:38 UTC · precision very low · basis bounded
Availability, content, DNS and registration are independent evidence layers. NXDOMAIN, an unreachable origin or missing content alone does not prove registrar action. A registrar or provider is credited only when a direct technical marker identifies that actor. Report causality is shown separately.
Keep original emails, receipts, messages and screenshots in a secure place. A factual timeline helps the receiving authority understand what happened. IC3 evidence guidance ↗
Payment records — if you paid, save the receipt, amount, date, payment provider and recipient details.
Your bank or payment provider — contact its fraud team promptly through official contact details if money or card information was exposed.
地元の警察 — たとえ直ちに行動を起こせなくても、公式な記録が残される
A report is not a guarantee of recovery or investigation, but prompt, accurate transaction data can help authorities and service providers trace the incident.
詐欺による金銭の返還を装った詐欺 — fraudsters pose as recovery agents and demand upfront fees. Never share a seed phrase or pay before independently verifying the provider
About this reportSources, observation dates and corrections
This report combines saved page captures, registration and network records, scanner results and PhishDestroy reporting history. Each source keeps its own observation date. Open a source report to inspect the original result.
The AI-assisted analysis was written on . It describes the evidence available at that time; later source checks can change.
A capture documents what was shown. A scanner result records that provider’s assessment at the time of its check. Neither a valid certificate nor a zero-detection result is a guarantee of safety.
(US)
