Public Mosaic C2 indicators
sample

b21403fd492bd7a9e1de6f00c2dd914164c3e0f947c73bec7fdd42828672fa0f

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

b21403fd492bd7a9e1de6f00c2dd914164c3e0f947c73bec7fdd42828672fa0f

TLP:CLEAR

Sample

sha-256b21403fd492bd7a9e1de6f00c2dd914164c3e0f947c73bec7fdd42828672fa0f
familyVShell
identified byfile analysis
first seen2026-10-01 11:01 UTC
last seen2026-10-05 21:11 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 · tcp154.91.61.121:8074

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.