public mosaic llc support@publicmosaic.com
confirmed host

IP address 81.71.7.250

Cobalt Strikecommand-and-control server · :12347

Last confirmed 2026-09-15, first seen 2026-09-08. On AS45090.

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

81.71.7.250:12347 · Cobalt Strike

Last confirmed (today)

first seen2026-09-08 02:19 UTC
serviceip-port · tcp
observed host360.net
networkAS45090 · Shenzhen Tencent Computer Systems Com…
confidence100 / 100
tls certificate2470dda5ded1dd96e9d2afcf6b94628bfb02f444cca0be1528d1f0d9e394dd87
cert subject*.360.net
cert subject org360.Net Inc
cert issuer*.360.net
cert issuer org360.Net Inc
cert validity2026-07-02 → 2036-06-29
cert typeself-signed
cert key2048-bit
cert serial (decimal)2642582605555072565

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
jarm2ad2ad16d2ad2ad22c42d42d00042de4f6cde49b80ad1e14c340f9e47ccd3a

Observation history

18d agotoday

Observed on 8 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