public mosaic llc support@publicmosaic.com
confirmed host

IP address 124.221.190.127

Cobalt Strikecommand-and-control server · :8786

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 →

124.221.190.127:8786 · Cobalt Strike

Last confirmed (today)

first seen2026-09-02 10:51 UTC
serviceip-port · tcp
networkAS45090 · Shenzhen Tencent Computer Systems Com…
confidence100 / 100
cs watermark391144938

Beacon configuration

callback124.221.190.127 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.7 (Aug 17, 2022)
getGET /cm
postPOST /submit.php
user-agentMozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
sleep60s ±0%
watermark391144938
server key md5ea755c290f7c2ebb1cc624e9493a4b7f
inject stub4044cc2fd581a10b920164b1f97997bd
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 Cobalt Strike watermark · 28 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 28. The rest are reachable from any of them.

Pivots & lookups