public mosaic llc support@publicmosaic.com
confirmed host

101.43.103.154

Cobalt Strikecommand-and-control server · :443

Last confirmed 2026-08-25, first seen 2026-08-24. On AS45090.

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

101.43.103.154:443 · Cobalt Strike

Last confirmed (21 days ago)

first seen2026-08-24 07:08 UTC
serviceip-port · tcp · HTTPS blend-in
networkAS45090 · Shenzhen Tencent Computer Systems Com…
confidence100 / 100
tls certificate1d89ec9b3ac66180185a5f5e2d71e1a6941301fdf23bf51ce6d642d68e376af0
cert subjectMicrosoftUpdates
cert subject orgMicrosoftUpdates
cert issuerMicrosoftUpdates
cert issuer orgMicrosoftUpdates
cert validity2024-04-11 → 2124-03-18
cert typeself-signed
cert key2048-bit

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
jarm2ad2ad16d2ad2ad00042d42d00042ddb04deffa1705e2edc44cae1ed24a4da

Observation history

18d agotoday

Last confirmed 2026-08-25 00:00 UTC — before this archive began recording daily presence on 2026-08-29. 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 →

1.14.104.208Cobalt Strike1.15.76.39Cobalt Strike101.126.10.34Cobalt Strike101.200.193.211Cobalt Strike101.200.29.195Cobalt Strike101.200.85.0Cobalt Strike101.201.103.158Cobalt Strike101.201.109.2Cobalt Strike101.33.200.145Cobalt Strike101.33.225.32Cobalt Strike101.35.238.122Cobalt Strike101.42.136.73Cobalt Strike101.42.255.92Cobalt Strike102.203.116.201Cobalt Strike103.119.47.222Cobalt Strike103.12.148.37Cobalt Strike103.204.174.212Cobalt Strike103.212.186.85Cobalt Strike103.27.111.130Cobalt Strike103.6.169.62Cobalt Strike104.168.102.116Cobalt Strike106.15.10.2Cobalt Strike106.53.61.9Cobalt Strike106.54.21.74Cobalt Strike

Showing 24 of 270. Full cohort →

Pivots & lookups

same ja4x → 270 other hosts same asn → 358 other hosts lookups: virustotal · shodan · censys

Listed in error?

This page is generated from automated scanning and is publicly available. If you are responsible for this address and it should not be listed, write to support@publicmosaic.com — see abuse & takedown for what we need and what happens next, or opt-out to exclude a whole range from scanning.

Addresses are frequently compromised third-party hosts rather than infrastructure their owner stood up. A listing records what a scan observed at a point in time; it is not an allegation about whoever pays for the address.