Public Mosaic C2 indicators
confirmed host

44.243.239.80

Havoccommand-and-control server · :443

On AS16509.

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 template4f24da86fad6_4f24da86fad6_e440e854f13357 other hosts · 56 listed

Not shared with any other host in this archive: 1 certificate.

Network context

SharedValueOther hosts
NetworkAS16509 · Amazon.com100 other hosts · 94 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-10-04
In this archive since2026-10-04
Evidence1 certificate
Look up elsewhereVirusTotal · Shodan · Censys
About this listingWhat a listing means · Is this your address?

Observation history

Listed on 27 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :443

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
  • 2026-10-04 – 2026-10-30 (27 days)

44.243.239.80:443 · Havoc

Last confirmed (21 days ago)

first seen2026-10-04 06:05 UTC
serviceip-port · tcp · HTTPS
networkAS16509 · Amazon.com
confidence100 / 100
tls certificate87d68612cdc46520d0baab8fbb4236e4124d3dff68e1607d277c5bfd38e5d395
cert subject0.0.0.0
cert subject orgDebug Corp
cert issuer0.0.0.0
cert issuer orgDebug Corp
cert validity2026-04-26 → 2029-04-25
cert typeself-signed
cert key2048-bit
cert serial (hex)b7d7222a89d2836244aeef7acb220663
cert serial (decimal)244365760025387883647810019917717177955
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.

ja4x4f24da86fad6_4f24da86fad6_e440e854f133

Hosts sharing a value with this one

57 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.

AddressFamilySharesLast confirmedStatus
JA4X template · 57 other hosts · 56 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, 17 are past the 40 hosts shown.

57.154.15.252HavocJA4X templatelisted
57.129.168.220HavocJA4X templatelisted
191.223.44.85HavocJA4X templatelisted
212.46.38.117HavocJA4X templatelisted
82.156.224.184HavocJA4X templatelisted
159.89.192.91HavocJA4X templatelisted
161.35.239.147HavocJA4X templatelisted
143.198.120.167HavocJA4X templatelisted
146.190.80.105HavocJA4X templatelisted
20.2.140.201HavocJA4X templatelisted
37.104.21.124HavocJA4X templatelisted
107.172.22.3SliverJA4X templatelisted
161.35.176.231HavocJA4X templatelisted
191.252.184.198HavocJA4X templatelisted
167.179.76.179HavocJA4X templatelisted
94.49.29.166HavocJA4X templatelisted
100.53.215.212HavocJA4X templatelisted
93.152.223.39HavocJA4X templatelisted
82.202.157.112HavocJA4X templatelisted
3.81.47.132HavocJA4X templatelisted
88.208.224.179HavocJA4X templatelisted
74.241.250.35HavocJA4X templatelisted
100.57.14.236HavocJA4X templatelisted
100.61.249.34HavocJA4X templatelisted
5.163.189.237HavocJA4X templatelisted
158.94.210.16HavocJA4X templatelisted
104.248.156.16HavocJA4X templatelisted
179.43.170.151HavocJA4X templatelisted
68.178.202.150HavocJA4X templatelisted
192.169.176.54HavocJA4X templatelisted
34.116.132.157HavocJA4X templatelisted
68.178.205.17HavocJA4X templatelisted
78.17.93.159HavocJA4X templatelisted
144.172.69.79HavocJA4X templatelisted
20.39.60.137HavocJA4X templatelisted
34.51.203.250HavocJA4X templatelisted
49.232.135.25HavocJA4X templatelisted
50.60.157.152HavocJA4X templatearchived
76.13.165.226HavocJA4X templatelisted
38.60.136.202HavocJA4X templatelisted

Deploy

Suricata rules and hunt queries for this address’s 1 listed listener.

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 == "44.243.239.80" and RemotePort in (443))
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "44.243.239.80" and DestinationPort in (443))
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="44.243.239.80" (All_Traffic.dest_port=443)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
Elastic (EQL)
network where
  (destination.ip == "44.243.239.80" and destination.port in (443))

Cite this record

Plain text, for a ticket or a report
Address 44.243.239.80 Family Havoc (command-and-control server) Ports :443 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-10-04 Last confirmed 2026-10-09 Record https://publicmosaic.com/ip/44.243.239.80 Source Public Mosaic, TLP:CLEAR