public mosaic llc support@publicmosaic.com
confirmed host

IP address 3.121.234.29

Mythiccommand-and-control server · :443

Last confirmed 2026-09-15, first seen 2026-08-28. On AS16509.

listed last confirmed feed checked TLP:CLEAR SURICATA .RULES SEE THE LIVE FEED →

3.121.234.29:443 · Mythic

Last confirmed (today)

first seen2026-08-28 20:11 UTC
serviceip-port · tcp · HTTPS blend-in
networkAS16509 · Amazon.com
confidence100 / 100
tls certificate7d950f2d3db82858a7a8a908c2b89ece0539c5ac6f23332504417c680deeb379
cert subject orgMythic C2
cert issuer orgMythic C2
cert validity2026-02-01 → 2027-02-01
cert typeself-signed
cert key384-bit
cert serial (decimal)109828476170745916713445609882721229483

The certificate names above are what the certificate ASSERTS, not proof this host owns them — a self-signed certificate can claim any subject, so treat a familiar name here as an impersonation attempt rather than an identity.

ja4xb757977db3a9_b757977db3a9_b06bda150783

Observation history

18d agotoday

Observed on 18 of the 18 days since this archive began recording, 2026-08-29 UTC. Presence is per UTC day: a day is marked when the scanner confirmed this address at least once, not once per scan.

Shared JA4X issuance template · 105 hosts

These hosts issued certificates from the same template — the same distinguished-name fields hashed in the same order. It links tooling, not necessarily an operator. Full cohort →

Showing 24 of 105. Full cohort →

Pivots & lookups