confirmed host

IP address 129.211.44.129

Cobalt Strikecommand-and-control server · :53333

On AS45090.

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 template5b6770778fe8_5b6770778fe8_f3465fcaa7625 other hosts · 5 listed

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

Network context

SharedValueOther hosts
NetworkAS45090 · Shenzhen Tencent Computer Systems Com…538 other hosts · 493 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-10-26
Evidence1 certificate
Look up elsewhereVirusTotal · Shodan · Censys

Observation history

Listed on 5 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :53333

2026-08-292026-10-30

  • first seen to last confirmed

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
  • 2026-10-26 – 2026-10-30 (5 days)

129.211.44.129:53333 · Cobalt Strike

Last confirmed (today)

first seen2026-10-26 06:19 UTC
serviceip-port · tcp
networkAS45090 · Shenzhen Tencent Computer Systems Com…
confidence100 / 100
tls certificate51e14e12951596e379b7d9e9c9bea03a15291d791b0f518959b61606b88bddef
cert subjectMajor Cobalt Strike
cert subject orgcobaltstrike
cert issuerMajor Cobalt Strike
cert issuer orgcobaltstrike
cert validity2026-08-13 → 2036-08-13
cert typeself-signed
cert key2048-bit
cert serial (hex)d63dc2739ea1e07213dd470300b0fdfc
cert serial (decimal)284775465154138747374398981894235553276

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

Hosts sharing a value with this one

5 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 Cobalt Strike, as this one is.

AddressSharesLast confirmedStatus
JA4X template · 5 other hosts · 5 listed

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

139.196.85.167JA4X templatelisted
110.40.170.52JA4X templatelisted
160.191.40.84JA4X templatelisted
124.221.104.170JA4X templatelisted
8.160.174.154JA4X 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 == "129.211.44.129" and RemotePort in (53333))
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "129.211.44.129" and DestinationPort in (53333))
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="129.211.44.129" (All_Traffic.dest_port=53333)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
Elastic (EQL)
network where
  (destination.ip == "129.211.44.129" and destination.port in (53333))

Cite this record

Plain text, for a ticket or a report
Address 129.211.44.129 Family Cobalt Strike (command-and-control server) Ports :53333 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-10-26 Last confirmed 2026-10-30 Record https://publicmosaic.com/ip/129.211.44.129 Source Public Mosaic, TLP:CLEAR