Public Mosaic C2 indicators
configuration value

Samples sharing one vkey

4 samples carry this vkey in their configuration. 4 hosts were observed serving them. Builders reuse default and stock values, so unrelated files can share one. A shared value is not evidence of a single operator.

TLP:CLEAR Suricata rules YARA rules JSON

The value

vkeygougou

Written into each sample by whoever built it. The same value is also the salt in 4 samples: samples sharing this salt →

The Suricata rules cover the hosts still listed; withdrawn hosts can stay in them for up to five minutes. The YARA rules match the sample hashes. The JSON is this page's data.

4 hosts

Hosts this archive observed serving these samples; 4 still listed.

82.23.246.186reverse_sshAS138643 · XINYUAN INTERCONNECT COMPANY:8023 · last confirmed 2026-10-3082.23.246.97reverse_sshAS138643 · XINYUAN INTERCONNECT COMPANY:8023 · last confirmed 2026-10-3082.23.246.123reverse_sshAS138643 · XINYUAN INTERCONNECT COMPANY:8023 · last confirmed 2026-10-3082.23.246.164reverse_sshAS138643 · XINYUAN INTERCONNECT COMPANY:8023 · last confirmed 2026-10-30

Shared infrastructure

What two or more of these hosts also share. Unrelated customers share a hosting network, and everyone who used the same builder shares its certificate or template.

AS138643 · XINYUAN INTERCONNECT COMPANY4 hostscertificate b59a3b634bc9…4 hostsJA4X a373a9f83c6b…4 hosts

4 samples