Public Mosaic C2 indicators
sample

ffa3143bac4c1e6891679c9ab6f0d811fc91967366cdc8493f2a8cb954f4f04c

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

ffa3143bac4c1e6891679c9ab6f0d811fc91967366cdc8493f2a8cb954f4f04c

TLP:CLEAR

Sample

sha-256ffa3143bac4c1e6891679c9ab6f0d811fc91967366cdc8493f2a8cb954f4f04c
familyVShell
identified byfile analysis
first seen2026-09-21 07:13 UTC
last seen2026-09-21 09:01 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 · tcp43.139.191.248:4443

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.