public mosaic llc support@publicmosaic.com
confirmed host

IP address 193.239.86.192

Cobalt Strikecommand-and-control server · :443

Last confirmed 2026-09-15, first seen 2026-09-04. On AS9009. Its certificate is shared with 1 other confirmed host.

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

193.239.86.192:443 · Cobalt Strike

Last confirmed (today)

first seen2026-09-04 18:12 UTC
serviceip-port · tcp · HTTPS blend-in
observed hostbaidu.com
networkAS9009 · M247 Europe
confidence100 / 100
tls certificate13bf37de8239abb8a59da091445f1fedeb2de35f3fb0c930007b513c7efef161
cert subjectbaidu.com
cert subject orgbaidu
cert issuerbaidu.com
cert issuer orgbaidu
cert validity2026-09-04 → 2027-09-04
cert typeself-signed
cert key2048-bit
cert serial (decimal)356413394

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
jarm07d14d16d21d21d00042d41d00041d47e4e0ae17960b2a5b4fd6107fbb0926
cs watermark1234567890

Beacon configuration

callbackapi.ruanwan.top · operator-supplied; a redirector or impersonation target, not an attribution
beacon typeHTTPS
cs versionCobalt Strike 4.4 (Aug 04, 2021)
getGET /identity/authentication/session/refresh
postPOST /inventory/warehouses/sku928371/availability
user-agentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/150.0.0.0 Safari/537.36
sleep10s ±37%
watermark1234567890
server key md560eacf40bf00674ba58970cbc603c99e
inject stub56d0c5d12139858d7bcc9084dda8bbd0
spawn to x86%windir%\syswow64\dllhost.exe
spawn to x64%windir%\sysnative\dllhost.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 TLS certificate · 1 host

These hosts served the same certificate. That is the strongest link this corpus can draw between two addresses, though it evidences a shared BUILD rather than a shared operator: a leaked or resold profile puts the same certificate in different hands. Full cohort →

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 · 6 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.

Neighbourhood · 193.239.86.0/24 · 1 host

1 other confirmed host in the same /24. Adjacent addresses under one operator are a different signal from a shared certificate — they suggest a block, not a build.

Pivots & lookups