public mosaic llc support@publicmosaic.com
confirmed host

IP address 162.251.92.64

Cobalt Strikecommand-and-control server · :54189, :448, :18888

Last confirmed 2026-09-13, first seen 2026-08-28. On AS154321.

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

This address answered on 3 ports — :54189, :448, :18888.

162.251.92.64:54189 · Cobalt Strike

Last confirmed (2 days ago)

first seen2026-09-05 21:28 UTC
serviceip-port · tcp
networkAS154321 · CORENET CLOUD SDN. BHD
confidence100 / 100
tls certificate8eb3c6aa7bffd194e18251531bd2d93066ec6c5414dfabe716e2a80c8177c867
cert subjectMajor Cobalt Strike
cert subject orgcobaltstrike
cert issuerMajor Cobalt Strike
cert issuer orgcobaltstrike
cert validity2026-08-14 → 2026-11-12
cert typeself-signed
cert key2048-bit
cert serial (decimal)872921745

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

162.251.92.64:448 · Cobalt Strike

Last confirmed (2 days ago)

first seen2026-08-30 12:32 UTC
serviceip-port · tcp
networkAS154321 · CORENET CLOUD SDN. BHD
confidence98 / 100
cs watermark987654321

Beacon configuration

callback162.251.92.64 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.7 (Aug 17, 2022)
getGET /match
postPOST /submit.php
user-agentMozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0; MATMJS)
sleep60s ±0%
watermark987654321
server key md5ece412f778c52fc503edecdd2c2b8615
inject stubcc4ba01c076d925ce1fc333d59ba83db
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

162.251.92.64:18888 · Cobalt Strike

Last confirmed (2 days ago)

first seen2026-08-28 21:49 UTC
serviceip-port · tcp
networkAS154321 · CORENET CLOUD SDN. BHD
confidence98 / 100
cs watermark987654321

Beacon configuration

callback162.251.92.64 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.7 (Aug 17, 2022)
getGET /dot.gif
postPOST /submit.php
user-agentMozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
sleep60s ±0%
watermark987654321
server key md5ece412f778c52fc503edecdd2c2b8615
inject stubcc4ba01c076d925ce1fc333d59ba83db
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

Observation history

18d agotoday

Observed on 16 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 · 108 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 108. The rest are reachable from any of them.

Pivots & lookups