public mosaic llc support@publicmosaic.com
confirmed host

IP address 154.219.115.123

Cobalt StrikeAdaptixcontrollers · :61443, :60001

Last confirmed 2026-09-15, first seen 2026-08-31. On AS401701.

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

This address answered on 2 ports — :61443, :60001, across 2 malware families.

154.219.115.123:61443 · Cobalt Strike

Last confirmed (today)

first seen2026-09-02 10:54 UTC
serviceip-port · tcp
observed hostjquery.com
networkAS401701 · cognetcloud
confidence100 / 100
tls certificate1ad6642fff4b89123bdc35000ed53ef57322284a397ffc988bd5fe86594d01ce
cert subjectjquery.com
cert subject orgjQuery
cert issuerjquery.com
cert issuer orgjQuery
cert validity2026-07-13 → 2027-07-13
cert typeself-signed
cert key2048-bit
cert serial (decimal)2493876512380792015

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

callback154.219.115.123 · same as this host
beacon typeHTTPS
cs versionCobalt Strike 4.9 (Sep 19, 2023)
getGET /jquery-3.3.1.min.js
postPOST /jquery-3.3.2.min.js
user-agentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/139.0.0.0 Safari/537.36 Edg/139.0.0.0
sleep4s ±37%
watermark666666666
server key md5724018abc346903672baabf0a6b65ce9
inject stub40ed048138df0b3e23a0ef24dc5efa1a
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

154.219.115.123:60001 · Adaptix

Last confirmed (today)

first seen2026-08-31 19:35 UTC
serviceip-port · tcp
networkAS401701 · cognetcloud
confidence100 / 100
tls certificate52e86169a6ca864d0ee5c9d87a53f7bec26ed048ca48aaf226ea8a476c91684f
cert subject orgInternet Widgits Pty Ltd
cert issuer orgInternet Widgits Pty Ltd
cert validity2026-04-11 → 2036-04-08
cert typeself-signed
cert key2048-bit
cert serial (decimal)327762548908889228623864832487395213697389074527

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.

ja4x5de83f524929_5de83f524929_795797892f9c

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 · 348 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.

Showing 24 of 348. The rest are reachable from any of them.

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