public mosaic llc support@publicmosaic.com
confirmed host

IP address 124.220.59.145

Cobalt Strikecommand-and-control server · :50050, :4554

Last confirmed 2026-09-15, first seen 2026-09-02. On AS45090.

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

This address answered on 2 ports — :50050, :4554.

124.220.59.145:50050 · Cobalt Strike

Last confirmed (today)

first seen2026-09-05 01:03 UTC
serviceip-port · tcp · Cobalt Strike team server default
networkAS45090 · Shenzhen Tencent Computer Systems Com…
confidence100 / 100
tls certificate3bb792cfe4157602990f6c7005005eb2dd36985887a48d926e723a4c00ec40d6
cert subjectPwn3rs Striked
cert subject orgPwn3rs
cert issuerPwn3rs Striked
cert issuer orgPwn3rs
cert validity2026-08-06 → 2026-11-04
cert typeself-signed
cert key2048-bit
cert serial (decimal)1797094228

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

124.220.59.145:4554 · Cobalt Strike

Last confirmed (today)

first seen2026-09-02 10:51 UTC
serviceip-port · tcp
networkAS45090 · Shenzhen Tencent Computer Systems Com…
confidence100 / 100
cs watermark987654321

Beacon configuration

callback124.220.59.145 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.9 (Sep 19, 2023)
getGET /match
postPOST /submit.php
user-agentMozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
sleep60s ±0%
watermark987654321
server key md5477a255707579f3654929d1f7da5f601
inject stubae5afcfee8026674dc8f3b4f2da46c7f
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

Observation history

18d agotoday

Observed on 14 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