Public Mosaic C2 indicators
confirmed host

38.54.117.91

Slivercommand-and-control server · :31338, :31337

On AS154177.

listed last confirmed feed checked TLP:CLEAR Suricata rules Show in the live feed

Relations

Values this address shares with other hosts in this archive, rarest first. A shared value says the hosts were set up alike, not that one operator runs them.

SharedValueOther hosts
Issuance cohort7022c563de38_7022c563de38_bf0f0589fc03_b2db06dc38aa_aa2fbbd6ae6f3 other hosts · 3 listed
JA4X template7022c563de38_7022c563de38_bf0f0589fc03770 other hosts · 631 listed

Not shared with any other host in this archive: 2 certificates.

Network context

SharedValueOther hosts
NetworkAS154177 · LIGHT NODE57 other hosts · 56 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-10-19
In this archive since2026-10-19
Ports2 · 2 listed
Evidence2 certificates
Look up elsewhereVirusTotal · Shodan · Censys
About this listingWhat a listing means · Is this your address?

Ports

This address answered on 2 ports. First seen and last confirmed dates are per row, by UTC day.

PortFirst seenLast confirmedStatusTLS certificateJA4X
:31338listed31167e198a527022c563de38_7022c563de38_bf0f0589fc03
:31337 · Sliver defaultlisted3d61fee62e357022c563de38_7022c563de38_bf0f0589fc03

Observation history

Listed on 12 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :31338 and 1 more

2026-08-292026-10-30

  • first seen to last confirmed
  • listed after its last confirmation

A marked day is a UTC day the feed listed this address. The feed keeps a listener for up to 90 days after its last confirmation, so a listed day is not a confirmation. A listener no longer in the feed is drawn to its last confirmation.

Listed days as dates
  • 2026-10-19 – 2026-10-30 (12 days)

Evidence

Each certificate, configuration and file appears once, with the listeners that carried it.

TLS certificate 31167e198a52

On :31338.

tls certificate31167e198a52044b10a8bf307892ad45e3c8a626d7e999b2b83704d6ec6113d0
cert subjectmultiplayer
cert issueroperators
cert validity2026-03-31 → 2028-03-30
cert typeissuer-signed
cert key256-bit
cert serial (hex)df8022ae31004d5abdafb6448394fdb3
cert serial (decimal)297083160460720630010130433219377823155
cert namesmultiplayer

The names above are what the certificate asserts, signed by the issuer it names, which may be a public certificate authority, a private one, or one a builder ships. This site verifies none of it, so treat a name here as a lead to investigate, never an attribution.

TLS certificate 3d61fee62e35

On :31337.

tls certificate3d61fee62e3563a3cf5923a2bcb36daea081ad98df33101c42675bfb9a89627f
cert subjectmultiplayer
cert issueroperators
cert validity2026-09-02 → 2028-09-01
cert typeissuer-signed
cert key256-bit
cert serial (hex)7526f3ace5fbb05a0af2b98f30bb4279
cert serial (decimal)155721925111413460816316811446568305273
cert namesmultiplayer

The names above are what the certificate asserts, signed by the issuer it names, which may be a public certificate authority, a private one, or one a builder ships. This site verifies none of it, so treat a name here as a lead to investigate, never an attribution.

Listeners

Each listener below shows its status and what sets it apart. Dates are in Ports; certificates, configurations and files in Evidence. Common to both listeners:

serviceip-port · tcp
networkAS154177 · LIGHT NODE
confidence100 / 100

38.54.117.91:31338 · Sliver

listed · certificate 31167e198a52

cohortshared issuance template · 4 hosts

38.54.117.91:31337 · Sliver

listed · certificate 3d61fee62e35

Hosts sharing a value with this one

770 other hosts in this archive share at least one value with this one. Each is listed once, under its first shared value in Relations order. Dates and status are from the records that share a value. Showing the 40 that rank first. Every host shown is labelled Sliver, as this one is.

AddressSharesLast confirmedStatus
Issuance cohort · 3 other hosts · 3 listed

A shared value says the hosts were set up alike, not that one operator runs them.

38.242.147.58issuance cohort · JA4X templatelisted
8.211.194.92issuance cohort · JA4X templatelisted
213.218.160.174issuance cohort · JA4X templatelisted
JA4X template · 770 other hosts · 631 listed

These hosts’ certificates share one JA4X template, which points to the same certificate tooling. It is not evidence of a single operator.

Of these, 3 are listed under an earlier value and 730 are past the 40 hosts shown.

47.116.113.15JA4X templatelisted
104.131.164.51JA4X templatelisted
177.3.43.43JA4X templatelisted
204.194.54.61JA4X templatelisted
103.185.249.13JA4X templatelisted
92.119.164.140JA4X templatelisted
45.74.31.54JA4X templatelisted
38.60.220.112JA4X templatelisted
103.121.95.90JA4X templatelisted
95.216.77.106JA4X templatelisted
89.23.102.186JA4X templatelisted
89.169.47.107JA4X templatelisted
89.106.83.157JA4X templatelisted
68.64.178.130JA4X templatelisted
65.109.195.180JA4X templatelisted
57.131.160.107JA4X templatelisted
52.194.243.16JA4X templatelisted
47.111.93.184JA4X templatelisted
47.85.195.225JA4X templatelisted
47.101.139.254JA4X templatelisted
46.16.35.120JA4X templatelisted
45.86.86.39JA4X templatelisted
45.207.219.46JA4X templatelisted
45.192.98.195JA4X templatelisted
45.141.21.199JA4X templatelisted
45.133.73.47JA4X templatelisted
45.12.114.252JA4X templatelisted
43.133.29.227JA4X templatelisted
43.130.69.135JA4X templatelisted
38.60.226.70JA4X templatelisted
38.60.125.189JA4X templatelisted
38.146.28.168JA4X templatelisted
31.76.111.31JA4X templatelisted
31.76.111.236JA4X templatelisted
31.57.38.70JA4X templatelisted
31.56.228.136JA4X templatelisted
217.60.38.147JA4X templatelisted

Deploy

Suricata rules and hunt queries for this address’s 2 listed listeners.

Suricata rules

Each query searches the last 30 days of your logs for connections to these listeners. Queries hold only addresses, ports and file hashes.

Microsoft Defender XDR (KQL)
DeviceNetworkEvents
| where Timestamp > ago(30d)
| where (RemoteIP == "38.54.117.91" and RemotePort in (31337, 31338))
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "38.54.117.91" and DestinationPort in (31337, 31338))
Splunk (SPL, CIM data models)
| tstats summariesonly=false count min(_time) as first_time max(_time) as last_time
    from datamodel=Network_Traffic where earliest=-30d
    ((All_Traffic.dest_ip="38.54.117.91" (All_Traffic.dest_port=31337 OR All_Traffic.dest_port=31338)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
Elastic (EQL)
network where
  (destination.ip == "38.54.117.91" and destination.port in (31337, 31338))

Cite this record

Plain text, for a ticket or a report
Address 38.54.117.91 Family Sliver (command-and-control server) Ports :31337, :31338 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-10-19 Last confirmed 2026-10-19 Record https://publicmosaic.com/ip/38.54.117.91 Source Public Mosaic, TLP:CLEAR