Is ye1.c.lencr.org safe?

The scan of ye1.c.lencr.org on 11 Aug 2026 reached no verdict either way (score -12). Too little was captured to judge it, which is an unknown rather than a pass.

What malware is associated with ye1.c.lencr.org?

3 analysed samples communicate with this URL, including Copak.

How was ye1.c.lencr.org checked?

A static pass resolved DNS, captured TLS and headers and followed the redirect chain, and where the fast tier allows, a headless browser rendered the page and recorded every request. Egress is SSRF-locked. Signatures that matched only page text are weighted far below one that matched a served file, because a page documenting malware matches the same rules.

ye1.c.lencr.org - URL scan, 11 Aug 2026

MalwareAnalyzer by Cyble scanned ye1.c.lencr.org and returned a unknown verdict (score -12). The page resolved to 104.18.20.213 on Cloudflare, Inc. in US. The domain was registered 2233 days ago through Cloudflare, Inc.. 2 domains and 1 IP were contacted. 3 malware samples communicate with this URL (Copak). This is a point-in-time observation from 11 Aug 2026; the page may have changed since.

Scan result

Verdict: unknown (score -12) · Confidence 15%
Scanned URL: https://ye1.c.lencr.org/
Domain: ye1.c.lencr.org · IP: 104.18.20.213 · AS13335 · US
Server: cloudflare
Page title: 404: Let's Encrypt CRLs for prod ye1.
HTTP status: 404 · text/html
Registrar: Cloudflare, Inc. · domain age 2233 days · created 2020-06-29
TLS issuer: C=US, O=Google Trust Services, CN=WE1 · valid to Oct 1 02: · subject CN=ye1.c.lencr.org
Scan tier: fast · observed 2026-08-11 14:56:02 UTC

Malware communicating with this URL (3)

These samples were observed contacting or being served from ye1.c.lencr.org. Each links to its full analysis.

e227eb99329d2401af40b2895584971d138761952f82ba63e79d5affd433f8fb - contacted · e227eb99329d2401af40b2895584971d · first seen 2026-08-11
f64edc162d5f6e64e3f64d34d1e94d6aaabd6ca4280e645c8680039762b02c53 - contacted · f64edc162d5f6e64e3f64d34d1e94d6a · first seen 2026-08-11
Copak - contacted · 05e2815688bb8aac0ca3091ac102d850 · first seen 2026-08-11

Why this verdict

Valid TLS, no impersonation or off-origin credential post

Detected technologies

Cloudflare

Contacted infrastructure

104.18.20.213 - AS13335 Cloudflare, Inc. (United States)

Observed indicators

ye1.c.lencr.org
letsencrypt.org
104.18.20.213
https://ye1.c.lencr.org/
https://letsencrypt.org/favicon.ico
https://letsencrypt.org/docs/lencr.org/

Other scans of ye1.c.lencr.org (10)

This host has been scanned before. Each scan is a separate observation, so a verdict here does not carry over to the others.

22 Aug 2026 - unknown · http://ye1.c.lencr.org/10.crl
22 Aug 2026 - unknown · http://ye1.c.lencr.org/103.crl
20 Aug 2026 - unknown
20 Aug 2026 - unknown · http://ye1.c.lencr.org/10.crl
19 Aug 2026 - unknown · http://ye1.c.lencr.org/32.crl
19 Aug 2026 - unknown
19 Aug 2026 - unknown · http://ye1.c.lencr.org/10.crl
19 Aug 2026 - unknown · http://ye1.c.lencr.org/83.crl
16 Aug 2026 - unknown · http://ye1.c.lencr.org/103.crl
11 Aug 2026 - unknown · http://ye1.c.lencr.org/103.crl

Questions about ye1.c.lencr.org

Is ye1.c.lencr.org safe?: The scan of ye1.c.lencr.org on 11 Aug 2026 reached no verdict either way (score -12). Too little was captured to judge it, which is an unknown rather than a pass.
What malware is associated with ye1.c.lencr.org?: 3 analysed samples communicate with this URL, including Copak.
How was ye1.c.lencr.org checked?: A static pass resolved DNS, captured TLS and headers and followed the redirect chain, and where the fast tier allows, a headless browser rendered the page and recorded every request. Egress is SSRF-locked. Signatures that matched only page text are weighted far below one that matched a served file, because a page documenting malware matches the same rules.

Scanned at the fast tier - see how URL scanning works.

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