Public Mosaic C2 indicators
sample

b643599acd2588eee13c755d4d37de34d78085aeb3c73331a10573c9d3b95d6c

A VShell sample, identified from its own bytes without running it (an embedded configuration).

b643599acd2588eee13c755d4d37de34d78085aeb3c73331a10573c9d3b95d6c

TLP:CLEAR

Sample

sha-256b643599acd2588eee13c755d4d37de34d78085aeb3c73331a10573c9d3b95d6c
familyVShell
identified byfile analysis
first seen2026-09-25 20:21 UTC
last seen2026-10-05 15:19 UTC
VirusTotal →

VShell configuration

Read from the file without running it. Endpoints are where the sample is configured to connect. An endpoint is listed on this site only if the scanner confirmed it separately. A VShell loader’s only configuration is the address and port it calls. The listener key (vkey) and the salt arrive from the listener when the loader connects, so only sandbox runs that reached a live listener show them.

endpoint · tcp101.132.137.20:8083

Pivots: other samples whose configuration carries the same value. A shared value is not evidence of a single operator.

same endpoint → 2 other samples

Every sample’s configuration, as signed-in downloads (free account): JSON · STIX · CSV.

Served by 1 address

A widely distributed file can reach unrelated hosts.