public mosaic llc support@publicmosaic.com
confirmed host

IP address 157.66.26.124

Cobalt Strikecommand-and-control server · :80, :50050

Last confirmed 2026-09-09, first seen 2026-08-29. On AS149107.

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

This address answered on 2 ports — :80, :50050.

157.66.26.124:80 · Cobalt Strike

Last confirmed (6 days ago)

first seen2026-08-29 05:25 UTC
serviceip-port · tcp
networkAS149107 · TRUMVPS COMPANY
confidence98 / 100

157.66.26.124:50050 · Cobalt Strike

Last confirmed (6 days ago)

first seen2026-08-29 00:47 UTC
serviceip-port · tcp · Cobalt Strike team server default
networkAS149107 · TRUMVPS COMPANY
confidence100 / 100
tls certificate87a61d62f0f2664fd42c7d0da60dbf47ed05f18bb89cf81ababe3065959d14fd
cert subjectMajor Cobalt Strike
cert subject orgcobaltstrike
cert issuerMajor Cobalt Strike
cert issuer orgcobaltstrike
cert validity2026-02-05 → 2026-05-06
cert typeself-signed
cert key2048-bit
cert serial (decimal)1952318598903561181

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.

ja4x2166164053c1_2166164053c1_30d204a01551

Observation history

18d agotoday

Observed on 12 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 · 270 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 270. Full cohort →

Pivots & lookups