Is hammerhead-app-ub55h.ondigitalocean.app safe?
http://hammerhead-app-ub55h.ondigitalocean.app/
Tech support scam page shows fake Windows Defender alerts pushing phone number 0101-83371-99514 [source:antivirus:aggregate]
hammerhead-app-ub55h.ondigitalocean.app hosts a Japanese-language fake security alert page that mimics Windows Defender with repeated popups and the phone number 0101-83371-99514. VirusTotal flags it as phishing/malware by 10 engines including Bitdefender, ESET, Kaspersky and Sophos. No credential forms observed on the captured page. Google Safe Browsing returned no warning.
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01 · Investigation Brief
Investigation Brief
hammerhead-app-ub55h.ondigitalocean.app hosts a Japanese-language fake security alert page that mimics Windows Defender with repeated popups and the phone number 0101-83371-99514. VirusTotal flags it as phishing/malware by 10 engines including Bitdefender, ESET, Kaspersky and Sophos. No credential forms observed on the captured page. Google Safe Browsing returned no warning.
What the site appears to do
The page and its automatic popup at /tfn.html display multiple layered fake Microsoft/Windows security center dialogs in Japanese warning of system threats (error 16JPSY7) and directing users to call the listed number for support.
Strongest evidence and limitations
Ten independent antivirus engines on VirusTotal classify the domain as phishing or malware. The screenshot shows clear deceptive UI mimicking official Windows branding and repeated phone prompts. Safe Browsing and TLS checks are clean; no downloads or credential fields were captured.
Practical user impact
Visiting the site risks exposure to social-engineering calls. The operator is unknown and the subdomain is hosted on DigitalOcean; treat any contact request as fraudulent.
Why the score is 12
9 independent antivirus familyies reported an adverse result. Coverage remains separate so missing sources cannot be mistaken for clean results.
02 · Security Evidence
Security evidence
Antivirus Engines
Fresh result
10 engines flagged this URL
Every saved adverse engine is listed below. The full provider matrix remains available for audit.
- Malicious
- 10
- Suspicious
- 0
- Total
- 92
| Engine | Finding |
|---|---|
| BitDefenderMalicious | phishing |
| ESETMalicious | phishing |
| FortinetMalicious | phishing |
| G-DataMalicious | phishing |
| KasperskyMalicious | malware |
| LevelBlueMalicious | phishing |
| LionicMalicious | phishing |
| NetcraftMalicious | malicious |
| RisingMalicious | phishing |
| SophosMalicious | phishing |
All 92 engine results
- BitDefender - phishing - Malicious
- ESET - phishing - Malicious
- Fortinet - phishing - Malicious
- G-Data - phishing - Malicious
- Kaspersky - malware - Malicious
- LevelBlue - phishing - Malicious
- Lionic - phishing - Malicious
- Netcraft - malicious - Malicious
- Rising - phishing - Malicious
- Sophos - phishing - Malicious
- 0xSI_f33d - unrated - Clean
- Abusix - clean - Clean
- Acronis - clean - Clean
- ADMINUSLabs - clean - Clean
- AILabs (MONITORAPP) - clean - Clean
- AlienVault - clean - Clean
- alphaMountain.ai - unrated - Clean
- AlphaSOC - unrated - Clean
- Antiy-AVL - clean - Clean
- ArcSight Threat Intelligence - unrated - Clean
- AutoShun - unrated - Clean
- Bfore.Ai PreCrime - unrated - Clean
- Bkav - unrated - Clean
- BlockList - clean - Clean
- Blueliv - clean - Clean
- Certego - clean - Clean
- ChainPatrol - clean - Clean
- Chong Lua Dao - clean - Clean
- CINS Army - clean - Clean
- Cluster25 - unrated - Clean
- CRDF - clean - Clean
- Criminal IP - unrated - Clean
- CSIS Security Group - unrated - Clean
- CTX AI - clean - Clean
- Cyan - unrated - Clean
- Cyble - clean - Clean
- CyRadar - clean - Clean
- desenmascara.me - clean - Clean
- DNS8 - unrated - Clean
- Dr.Web - clean - Clean
- EmergingThreats - clean - Clean
- Emsisoft - clean - Clean
- Ermes - unrated - Clean
- ESTsecurity - clean - Clean
- Forcepoint ThreatSeeker - clean - Clean
- Fortra - unrated - Clean
- GCP Abuse Intelligence - unrated - Clean
- Google Safe Browsing - clean - Clean
- GreenSnow - clean - Clean
- GreyNoise - unrated - Clean
- Gridinsoft - unrated - Clean
- Guardpot - unrated - Clean
- Heimdal Security - clean - Clean
- Hunt.io Intelligence - unrated - Clean
- IPsum - clean - Clean
- Juniper Networks - clean - Clean
- K7AntiVirus - unrated - Clean
- Lumu - unrated - Clean
- Malwared - clean - Clean
- MalwarePatrol - clean - Clean
- MalwareURL - unrated - Clean
- Mimecast - unrated - Clean
- OpenPhish - clean - Clean
- PhishFort - unrated - Clean
- Phishing Database - clean - Clean
- Phishtank - clean - Clean
- PREBYTES - clean - Clean
- PrecisionSec - unrated - Clean
- Quick Heal - clean - Clean
- Quttera - clean - Clean
- SafeToOpen - unrated - Clean
- Sangfor - clean - Clean
- Sansec eComscan - unrated - Clean
- Scantitan - clean - Clean
- SCUMWARE.org - clean - Clean
- Seclookup - clean - Clean
- Snort IP sample list - unrated - Clean
- SOCRadar - unrated - Clean
- StopForumSpam - clean - Clean
- Sucuri SiteCheck - clean - Clean
- ThreatHive - clean - Clean
- URLhaus - clean - Clean
- URLQuery - unrated - Clean
- Viettel Threat Intelligence - clean - Clean
- VIPRE - unrated - Clean
- ViriBack - clean - Clean
- VX Vault - clean - Clean
- Webroot - clean - Clean
- Xcitium Verdict Cloud - clean - Clean
- Yandex Safebrowsing - clean - Clean
- ZeroCERT - clean - Clean
- ZeroFox - unrated - Clean
Security Scans
Checked against the browser threat feeds available to this scan — no hit.
What we observed
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Captured during this scan in a safe sandbox. Opening this report does not revisit the site. Marker positions are approximate. See full visual analysis →
Visual warning signs were identified
Multiple overlapping fake Windows Defender and Microsoft support dialogs with phone number 0101-83371-99514
What the captured page showed
1 observation- 01
Multiple overlapping fake Windows Defender and Microsoft support dialogs with phone number 0101-83371-99514
03 · Investigation Story
Investigation story
- 1
What the site claims
ヘルプデスクを入手-01U2E1
- 2
What we observed
Saved browser evidence recorded popups.
- 3
What independent research found
The search completed without a material external warning or corroborating report.
- 4
What remains unverified
2 of the five core capabilities did not complete, so those gaps remain visible in the coverage ledger.
What kind of site and risk is this?
Threat category
Tech-Support & Fake Security Alerts
Also observed: Phishing & Impersonation
Service and business model
Unknown
Unknown
Observed behavior
Evidence behind this classification
- 019 independent antivirus familyies reported an adverse result.
- 0210 malicious detections across 92 engines, multiple engines label as phishing
What this means for you
You were probably about to call a number or install 'support' software.
Whoever answers takes remote control of your device, 'finds' fake problems, and charges you — or quietly steals your files and passwords.
How this scam works
The trap, step by step
A fake Microsoft / Apple / antivirus alert says your PC is infected and tells you to call a number.
The “technician” has you install remote-access software.
They take control, show harmless files as scary “errors”, and demand payment to “fix” it.
They charge you — and may steal files or plant real malware while connected.
Recognising the pattern is the best defence — if a site follows these steps, close it and don't enter anything.
Web research findings
Independent findings for hammerhead-app-ub55h.ondigitalocean.app, including public complaints, named review sources, registration records, and look-alike-domain evidence. A missing result is shown as unverified, never converted into a clean bill of health.
No independently sourced scam reports or credibility records were found for hammerhead-app-ub55h.ondigitalocean.app. That is common for new or low-traffic sites and does not clear the site.
Reputation Sources
How this domain rates across independent threat-intelligence and blocklist providers.
04 · Domain & Infrastructure
Domain & infrastructure
The plumbing behind the site — who registered it, how it’s encrypted, where it’s hosted, and where it links out. A valid certificate or a calm server doesn’t mean the business is honest — scam sites pass these checks too. Use this to corroborate the verdict, not to overturn it.
Infrastructure map
How the saved page connected to the wider web.
Contact Verification
Saved contact details can help identify the operator. Their presence supports traceability; it does not prove the business is trustworthy.
- No direct contact email found on the captured page.
Domain & Encryption
Redirect Chain
- 1301http://hammerhead-app-ub55h.ondigitalocean.app/
- 2206https://hammerhead-app-ub55h.ondigitalocean.app/
Server Reputation
Referenced Domains
Outbound domains this page links to or loads resources from. Each links to its own security scan.
05 · Evidence Ledger
Evidence ledger
The conclusion is supported by the evidence saved with this report.
Technical threat
Malware, phishing, credential theft and hostile infrastructure.
Additional evidence review · Additional evidence review
Operator / customer risk
Complaints, withdrawals, business conduct and commercial traps.
No confirmed evidence in this dimension.
Source coverage and freshness
Status shows whether usable evidence was saved; finding shows what that evidence observed.
| Source | Result | Completion | Finding | Freshness |
|---|---|---|---|---|
| Antivirus | 10 of 92 engines flagged | Completed | Adverse | fresh · Aug 1, 2026 |
| Browser protection | No browser threat-list match | Completed | No adverse finding | Not available |
| Page content | Page fetched · HTTP 200 | Limited | No saved finding | Not available |
| Visual evidence | 1 visible observation saved with the page capture | Completed | Adverse | Not available |
| Independent research | The search completed without a material external finding | Completed | No adverse finding | Not available |
- Page content
- Result: Page fetched · HTTP 200
- Limited
- No saved finding
- Visual evidence
- Result: 1 visible observation saved with the page capture
- Completed
- Adverse
- Independent research
- Result: The search completed without a material external finding
- Completed
- No adverse finding
06 · Your Next Move
Your next move
Avoid this site
Our automated review flagged enough risk that you should treat this site as unverified.
- Analyst recommendation
Do not call the number or interact with the page. Close the browser tab and run a full scan with reputable antivirus. Avoid similar unsolicited security popups in the future.
- Do not interact with hammerhead-app-ub55h.ondigitalocean.app
Do not enter credentials, deposit money, download files, or install browser extensions from this site.
- Verify the business through independent channels
Check the company's social profiles, registry records, and search for recent news or reviews that are not hosted on the site itself.
- Never use irreversible payment methods
Crypto, gift cards, wire transfers, and cash apps offer zero buyer protection. Use a credit card or PayPal if you must pay.
- OpenShare your experience
If you have additional context, drop a comment below or post on the MalwareTips forum.
Dangerous
Tech support scam page shows fake Windows Defender alerts pushing phone number 0101-83371-99514 [source:antivirus:aggregate]
hammerhead-app-ub55h.ondigitalocean.app hosts a Japanese-language fake security alert page that mimics Windows Defender with repeated popups and the phone number 0101-83371-99514. VirusTotal flags it as phishing/malware by 10 engines including Bitdefender, ESET, Kaspersky and Sophos. No credential forms observed on the captured page. Google Safe Browsing returned no warning.
- 01
10 malicious detections across 92 engines, multiple engines label as phishing
- 02
Google Safe Browsing returned no threat warning
- 03
Valid TLS certificate from Google Trust Services
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- Positive
- 2
- Limited
- 1
- Risk
- 1
- Analysis coverage
- 90% strong coverage
- Core capabilities
- 3/5 completed checks
- Source coverage
- 4/5 sources complete
- Evidence checks
- 2/8 completed checks flagged
Saved evidence only. Missing checks are never treated as a clean result.
07 · Community
Community
08 · Safety FAQ
Safety FAQ
Common questions, answered directly from the scan data above — so the answers reflect the saved verdict and evidence in this report.
0 community contributions
Share what happened, what the site requested, and what others should watch for.
Community reviews never change the scanner verdict.