public mosaic llc support@publicmosaic.com
confirmed host

IP address 42.193.188.121

Quasarremote-access trojan controller · :4782

Last confirmed 2026-09-14, first seen 2026-09-02. On AS45090. Its certificate is shared with 3 other confirmed hosts.

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

42.193.188.121:4782 · Quasar

Last confirmed (yesterday)

first seen2026-09-02 10:09 UTC
serviceip-port · tcp
networkAS45090 · Shenzhen Tencent Computer Systems Com…
confidence100 / 100
tls certificatedc2f5830ef7a7aa316b710e05805b169767edb0ada1fd91bb3969f51e19c2e9f
cert subjectQuasar Server CA
cert issuerQuasar Server CA
cert validity2025-05-12 → 9999-12-31
cert typeself-signed
cert key4096-bit
cert serial (decimal)906350544301760524475408612194257533

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.

ja4x7022c563de38_7022c563de38_0147df7a0c11

Observation history

18d agotoday

Observed on 13 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 · 3 hosts

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 · 143 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 143. Full cohort →

Pivots & lookups