public mosaic llc support@publicmosaic.com
confirmed host

IP address 23.95.170.223

Cobalt Strikecommand-and-control server · :18443

Last confirmed 2026-09-09, first seen 2026-08-27. On AS36352.

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

23.95.170.223:18443 · Cobalt Strike

Last confirmed (5 days ago)

first seen2026-08-27 19:19 UTC
serviceip-port · tcp
networkAS36352 · HostPapa
confidence100 / 100
tls certificate5e8679fb05392323dbd9f7aab52c114f334425634eea9685ab5e0df34d7b9537
cert subjectGoogle Spider
cert subject orgAlphabet Inc
cert issuerGoogle Spider
cert issuer orgAlphabet Inc
cert validity2026-06-13 → 2036-06-10
cert typeself-signed
cert key2048-bit
cert serial (decimal)17992661540798208028

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
cs watermark666666666

Beacon configuration

callback23.95.170.223 · same as this host
beacon typeHTTPS
cs versionCobalt Strike 4.9 (Sep 19, 2023)
getGET /api/v1/get
postPOST /api/v1/post
user-agentMozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36
sleep15s ±45%
watermark666666666
server key md52ec29d286d92233249d9d73beab1afc7
inject stube781a4479f7c5a03b2dcfe4bd436366f
spawn to x86%allusersprofile%\CrashReport\CrashReport.exe
spawn to x64%allusersprofile%\CrashReport\CrashReport64.exe

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 →

Shared Cobalt Strike watermark · 56 hosts

A watermark identifies the Cobalt Strike licence a beacon was generated from. Hosts sharing one were built from the same copy of the software — which is not the same as one operator, since cracked and leaked builds circulate widely and share a watermark by definition.

Showing 24 of 56. The rest are reachable from any of them.

Pivots & lookups