usdc331.com is an impersonation phishing site whose name borrows the USDC stablecoin ticker plus a number, a pattern meant to look like an official or promotional USDC address to stablecoin holders. PhishDestroy first flagged it on 2026-10-09. The site has been offline since 2026-10-14, and its content was blocked by the provider as of 2026-10-19. The page title reads "onkeyon", which does not match the USDC branding in the domain, while we classified the site as impersonation phishing.
How the scam works
Sites that trade on a stablecoin's name usually pose as an official USDC portal, a reward claim, or a high-yield savings offer. The victim is then pushed to connect a wallet and sign a transaction, enter a recovery phrase, or send USDC as a deposit or "activation" payment. Each route ends the same way: the funds or the wallet's control pass to the operators. Stablecoin transfers settle quickly and cannot be reversed by the issuer on the victim's behalf.
Evidence
Independent detection was thin. On 2026-10-13 only 2 of 92 VirusTotal engines flagged the domain, Forcepoint ThreatSeeker and LevelBlue, so most security products would have let it load without warning. PhishDestroy is the only blocklist carrying it. The domain does appear in 4 AlienVault OTX threat pulses, which shows other researchers tracked it.
Infrastructure
The domain was registered on 2025-11-09 through Gname.com Pte. Ltd. It sat for about eleven months before PhishDestroy detected it, which fits an address registered in advance and switched on for a campaign later. It was served through Cloudflare's network with a Canadian location, so the hosting IP hides the real origin server. Its Google Trust Services certificate was an ordinary automated issue, so the browser padlock said nothing about whether the site was legitimate.
What to do
If you connected a wallet to usdc331.com, review and revoke its token approvals with a reputable approval checker, and move remaining assets to a new wallet if you signed anything you did not understand. If you typed your recovery phrase into the site, treat that wallet as compromised and transfer funds to a freshly generated wallet at once. Any USDC sent as a deposit or fee is gone. Ignore follow-up "recovery" offers, which are a common second scam. Defenders should block the domain and similar numbered USDC lookalikes, and check proxy logs for visits around 2026-10-09 to 2026-10-14.
Saved certificate metadata. Certificate dates without a timezone are shown as stored. Transport encryption does not establish that the site is trustworthy.
Hostnames retained in the domain record or Certificate Transparency cache. A hostname alone does not establish current availability or malicious activity.
www.usdc331.comDomain record
The original observation time is not recorded for these hostnames.
技术 · 4 identified
H
HSTS
安全
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Template-based draft · optional AI wording assistance requires separate consent
AI辅助草稿——事件详细信息由AI提供商处理 · 自行审核并提交
After a phishing incident
针对受害者的建议与指导
Choose the steps that match what you shared. Keep a copy of this report alongside your own records.
我应该立即采取什么措施？
紧急
Stop using the suspicious site. Open the real service through its official app or an address you already trust.
更改所有密码 — 电子邮件、Exchange 账户，以及任何使用同一密码的账户
启用双因素认证 使用身份验证器应用（而非短信）。禁用基于短信的恢复功能
冻结卡片 如果您在钓鱼网站上输入了银行信息
我应该为报告收集哪些信息？
联邦调查局（FBI）指南
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.
当地警方 — 即使无法立即采取行动，也能留下正式记录
A report is not a guarantee of recovery or investigation, but prompt, accurate transaction data can help authorities and service providers trace the incident.
How do phishing scams typically work?
虚假网站 — 与正规网站完全一致的克隆网站，仅域名略有改动
猪的屠宰 — 通过Telegram/WhatsApp/交友软件花数周时间建立信任，随后钱被骗走
退款诈骗 — 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.
(SG)
