Public Mosaic C2 indicators
sample

cfef9c2f78f5a81d441230309364904b465ba4a546f274e55c4f567813233922

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

cfef9c2f78f5a81d441230309364904b465ba4a546f274e55c4f567813233922

TLP:CLEAR

Sample

sha-256cfef9c2f78f5a81d441230309364904b465ba4a546f274e55c4f567813233922
familyVShell
identified byfile analysis
first seen2026-09-04 21:28 UTC
last seen2026-10-04 21:10 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 · tcp154.81.34.82:13389

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.