# keepalive.update-defender.workers.dev — MALICIOUS

> Discover why keepalive.update-defender.workers.dev is flagged for credential phishing. Learn about its risks and how to stay protected.

## Summary
PhishDestroy identifies keepalive.update-defender.workers.dev as a high-risk domain involved in credential phishing activities. The domain attempts to deceive users into revealing sensitive login information, posing significant threats to personal and organizational security. Its malicious intent is corroborated by multiple threat intelligence sources.

Technically, keepalive.update-defender.workers.dev resolves to the IP address 188.114.97.3 and is registered through Cloudflare, Inc. Cloudflare’s own protection mechanisms have flagged the page title as a suspected phishing site. Additionally, VirusTotal detects malicious indicators, with 18 out of 95 security engines marking it as suspicious. Google Safe Browsing classifies it under the SOCIAL_ENGINEERING category, indicating its role in deceptive tactics aimed at harvesting credentials.

Currently, this domain remains active and continues to pose a threat. PhishDestroy recommends immediate blocking of keepalive.update-defender.workers.dev within network environments and vigilance against unsolicited communications referencing this domain. Users and organizations should employ robust anti-phishing tools and maintain up-to-date security training to mitigate potential exposure.

## Threat Details
- Verdict: MALICIOUS
- Site status: dead (HTTP 403)
- Page title: Suspected phishing site | Cloudflare

## Domain Intelligence
- Registered: 2026-03-10 13:07:01
- Registrar: Cloudflare, Inc.
- Country: US
- IP: 188.114.97.3
- IP Country: US
- IP City: San Francisco
- IP Org: AS13335 Cloudflare, Inc.
- Nameservers: NS_NOT_FOUND
- SSL Issuer: Google Trust Services / WE1

## Detection Status
- VirusTotal: 18 vendors flagged
  Vendors: ["ADMINUSLabs", "Criminal IP", "alphaMountain.ai", "CyRadar", "DNS8", "ESET", "Emsisoft", "Forcepoint ThreatSeeker", "Fortinet", "G-Data", "Google Safebrowsing", "Kaspersky", "Lionic", "Netcraft", "OpenPhish", "Sophos", "Trustwave", "Webroot"]
- Google Safe Browsing: FLAGGED
- Blocklists: 1 hits
  Lists: ["PhishDestroy"]

## Evidence
- Screenshot: https://urlscan.io/screenshots/019cd799-2379-728d-b600-34680c1273ee.png
- Cloudflare Radar: https://radar.cloudflare.com/scan/7dad9c2d-8733-4de7-a912-2d9791a1d292
- PhishDestroy: https://phishdestroy.io/domain/keepalive.update-defender.workers.dev/
- LLM endpoint: https://phishdestroy.io/domain/keepalive.update-defender.workers.dev/llm.txt

## If You Visited This Site
1. Change any passwords you may have entered
2. Enable 2FA on all related accounts
3. Monitor your accounts for unauthorized activity
4. Report to: FBI IC3, Europol, local authorities

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Report by PhishDestroy | https://phishdestroy.io/domain/keepalive.update-defender.workers.dev/
Last updated: 2026-03-19