public mosaic llc support@publicmosaic.com
confirmed host

IP address 108.187.6.81

Diaoyu Kejicommand-and-control server · :443

Last confirmed 2026-09-15, first seen 2026-09-11. On AS138995.

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

108.187.6.81:443 · Diaoyu Keji

Last confirmed (today)

first seen2026-09-11 20:12 UTC
serviceip-port · tcp · HTTPS blend-in
observed hostriiskruwj.com
networkAS138995 · Antbox Networks
confidence100 / 100
tls certificate45bac7bdd83caf1583b3ed28c2d5f812284cc6cc063c9a0f72a26d7de120a6e2
cert subjectriiskruwj.com
cert issuerYR2
cert issuer orgLet's Encrypt
cert validity2026-09-07 → 2026-12-06
cert typeCA-signed
cert key2048-bit
cert serial (decimal)518245933773633465768213278441340970156207
cert namesriiskruwj.com

The certificate names above were validated by the issuing authority at issuance. They describe the certificate, not conduct by the names' owner — a legitimately issued certificate can be deployed on a listed host by whoever holds its private key, so treat the name as a pivot to investigate rather than as an attribution.

ja4xa373a9f83c6b_7022c563de38_2e3757343cb0
jarm29d29d00029d29d22c29d29d29d29d703dc1bf20eb9604decefea997eabff7

Observation history

18d agotoday

Observed on 5 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 · 154 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 154. Full cohort →

Neighbourhood · 108.187.6.0/24 · 2 hosts

2 other confirmed hosts 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