Public Mosaic C2 indicators
confirmed host

188.48.121.249

Havoccommand-and-control server · :40056, :443

On AS25019.

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
JA4X template9fc0dff954ac_9fc0dff954ac_e440e854f13320 other hosts · 19 listed

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

Network context

SharedValueOther hosts
NetworkAS25019 · Saudi Telecom Company JSC7 other hosts · 6 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-09-22
In this archive since2026-09-22
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
:40056listed537a44a264269fc0dff954ac_9fc0dff954ac_e440e854f133
:443 · HTTPSlisted44da89ffc4d19fc0dff954ac_9fc0dff954ac_e440e854f133

Observation history

Listed on 39 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :40056 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
  • 2026-09-22 – 2026-10-30 (39 days)

Evidence

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

TLS certificate 537a44a26426

On :40056.

tls certificate537a44a264261c61543cde2eb17e7ecd5c5c2e7a0ec3d33e295fdd07ac63ca61
cert subject0.0.0.0
cert issuer0.0.0.0
cert validity2025-12-04 → 2028-12-03
cert typeself-signed
cert key2048-bit
cert serial (hex)ba31106e82c8aec116ff0709eb506ea4
cert serial (decimal)247491163036189755604054487218584055460
cert names0.0.0.0

The names above are what the certificate claims, not proof that this host owns them. Treat a familiar name as a likely impersonation.

TLS certificate 44da89ffc4d1

On :443.

tls certificate44da89ffc4d1b4cf415a6426bbbc7488ba049a1a4b0db8c1f7147757f8c40797
cert subject0.0.0.0
cert issuer0.0.0.0
cert validity2026-01-08 → 2029-01-07
cert typeself-signed
cert key2048-bit
cert serial (hex)bdac032f1d26c01d27a8f9419db066de
cert serial (decimal)252117230842991451154504378534826370782
cert names0.0.0.0

The names above are what the certificate claims, not proof that this host owns them. Treat a familiar name as a likely impersonation.

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
networkAS25019 · Saudi Telecom Company JSC
confidence100 / 100

188.48.121.249:40056 · Havoc

listed · certificate 537a44a26426

188.48.121.249:443 · Havoc

listed · certificate 44da89ffc4d1

Hosts sharing a value with this one

20 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. Every host shown is labelled Havoc, as this one is.

AddressSharesLast confirmedStatus
JA4X template · 20 other hosts · 19 listed

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

212.103.26.10JA4X templatelisted
80.241.214.61JA4X templatelisted
64.227.35.8JA4X templatelisted
188.166.254.199JA4X templatelisted
142.93.88.220JA4X templatelisted
51.81.171.234JA4X templatelisted
15.204.14.143JA4X templatelisted
146.190.80.105JA4X templatelisted
15.204.95.228JA4X templatelisted
96.62.218.236JA4X templatelisted
167.148.201.108JA4X templatelisted
191.252.184.198JA4X templatelisted
173.249.41.141JA4X templatelisted
45.79.198.116JA4X templatelisted
82.202.157.112JA4X templatelisted
104.248.156.16JA4X templatelisted
154.36.161.180JA4X templatelisted
18.97.21.97JA4X templatelisted
89.125.48.185JA4X templatearchived
124.221.215.82JA4X 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 == "188.48.121.249" and RemotePort in (443, 40056))
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "188.48.121.249" and DestinationPort in (443, 40056))
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="188.48.121.249" (All_Traffic.dest_port=443 OR All_Traffic.dest_port=40056)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
Elastic (EQL)
network where
  (destination.ip == "188.48.121.249" and destination.port in (443, 40056))

Cite this record

Plain text, for a ticket or a report
Address 188.48.121.249 Family Havoc (command-and-control server) Ports :443, :40056 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-09-22 Last confirmed 2026-09-24 Record https://publicmosaic.com/ip/188.48.121.249 Source Public Mosaic, TLP:CLEAR