Public Mosaic C2 indicators
confirmed host

106.12.61.28

Cobalt Strikecommand-and-control server · :50050

On AS38365. Its certificate is shared with 53 other hosts.

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
TLS certificate56a06a233bd30f693de25ef12cc19e8b2c92d3eb97dd969a2578df084c37647853 other hosts · 53 listed
Issuance cohort2166164053c1_2166164053c1_30d204a01551_60e4afe8b719_4c8172b9dba553 other hosts · 53 listed
JA4X template2166164053c1_2166164053c1_30d204a01551420 other hosts · 417 listed

Network context

SharedValueOther hosts
NetworkAS38365 · Beijing Baidu Netcom Science and Tech…21 other hosts · 21 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-10-18
In this archive since2026-10-18
Evidence1 certificate
Look up elsewhereVirusTotal · Shodan · Censys
About this listingWhat a listing means · Is this your address?

Observation history

Listed on 13 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :50050

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
  • 2026-10-18 – 2026-10-30 (13 days)

106.12.61.28:50050 · Cobalt Strike

Last confirmed (today)

first seen2026-10-18 06:02 UTC
serviceip-port · tcp · Cobalt Strike team-server default
networkAS38365 · Beijing Baidu Netcom Science and Tech…
confidence100 / 100
tls certificate56a06a233bd30f693de25ef12cc19e8b2c92d3eb97dd969a2578df084c376478
cert subjectMajor Cobalt Strike
cert subject orgcobaltstrike
cert issuerMajor Cobalt Strike
cert issuer orgcobaltstrike
cert validity2022-08-30 → 2022-11-28
cert typeself-signed
cert key2048-bit
cert serial (hex)27530dfe
cert serial (decimal)659754494

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

ja4x2166164053c1_2166164053c1_30d204a01551
cohortshared issuance template · 54 hosts

Hosts sharing a value with this one

420 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 Cobalt Strike, as this one is.

AddressSharesLast confirmedStatus
TLS certificate · 53 other hosts · 53 listed

These hosts presented the same certificate. Leaked or resold profiles reuse certificates, so this is not evidence of a single operator.

Of these, 13 are past the 40 hosts shown.

113.250.188.15certificate · issuance cohort · JA4X templatelisted
60.247.206.23certificate · issuance cohort · JA4X templatelisted
47.120.32.72certificate · issuance cohort · JA4X templatelisted
43.136.19.18certificate · issuance cohort · JA4X templatelisted
192.3.251.109certificate · issuance cohort · JA4X templatelisted
192.253.229.133certificate · issuance cohort · JA4X templatelisted
139.196.201.58certificate · issuance cohort · JA4X templatelisted
134.122.204.168certificate · issuance cohort · JA4X templatelisted
107.148.237.76certificate · issuance cohort · JA4X templatelisted
124.223.22.132certificate · issuance cohort · JA4X templatelisted
111.228.5.127certificate · issuance cohort · JA4X templatelisted
185.184.70.41certificate · issuance cohort · JA4X templatelisted
156.254.20.48certificate · issuance cohort · JA4X templatelisted
156.254.20.47certificate · issuance cohort · JA4X templatelisted
156.254.20.46certificate · issuance cohort · JA4X templatelisted
120.48.18.226certificate · issuance cohort · JA4X templatelisted
8.137.169.91certificate · issuance cohort · JA4X templatelisted
47.93.243.161certificate · issuance cohort · JA4X templatelisted
114.215.190.105certificate · issuance cohort · JA4X templatelisted
123.56.124.3certificate · issuance cohort · JA4X templatelisted
47.98.124.244certificate · issuance cohort · JA4X templatelisted
43.243.73.187certificate · issuance cohort · JA4X templatelisted
103.12.148.37certificate · issuance cohort · JA4X templatelisted
139.196.111.118certificate · issuance cohort · JA4X templatelisted
146.19.216.170certificate · issuance cohort · JA4X templatelisted
146.19.216.163certificate · issuance cohort · JA4X templatelisted
175.124.145.102certificate · issuance cohort · JA4X templatelisted
154.94.237.203certificate · issuance cohort · JA4X templatelisted
64.7.199.195certificate · issuance cohort · JA4X templatelisted
134.122.203.247certificate · issuance cohort · JA4X templatelisted
1.15.76.39certificate · issuance cohort · JA4X templatelisted
95.182.114.29certificate · issuance cohort · JA4X templatelisted
150.158.102.111certificate · issuance cohort · JA4X templatelisted
111.230.37.219certificate · issuance cohort · JA4X templatelisted
42.194.241.92certificate · issuance cohort · JA4X templatelisted
82.156.242.28certificate · issuance cohort · JA4X templatelisted
154.219.101.56certificate · issuance cohort · JA4X templatelisted
8.148.201.210certificate · issuance cohort · JA4X templatelisted
121.40.37.49certificate · issuance cohort · JA4X templatelisted
47.95.192.147certificate · issuance cohort · JA4X templatelisted
Issuance cohort · 53 other hosts · 53 listed

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

Of these, 40 are listed under an earlier value and 13 are past the 40 hosts shown.

JA4X template · 420 other hosts · 417 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, 40 are listed under an earlier value and 380 are past the 40 hosts shown.

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 == "106.12.61.28" and RemotePort in (50050))
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "106.12.61.28" and DestinationPort in (50050))
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="106.12.61.28" (All_Traffic.dest_port=50050)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
Elastic (EQL)
network where
  (destination.ip == "106.12.61.28" and destination.port in (50050))

Cite this record

Plain text, for a ticket or a report
Address 106.12.61.28 Family Cobalt Strike (command-and-control server) Ports :50050 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-10-18 Last confirmed 2026-10-30 Record https://publicmosaic.com/ip/106.12.61.28 Source Public Mosaic, TLP:CLEAR