Public Mosaic C2 indicators
confirmed host

146.19.216.163

Cobalt Strikecommand-and-control server · :37001, :31028

On AS134677. It presented 2 certificates; 187 other hosts share at least one of them.

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
TLS certificate87f2085c32b6a2cc709b365f55873e207a9caa10bffecf2fd16d3cf9d94d390c145 other hosts · 143 listed
JA4X template2166164053c1_2166164053c1_30d204a01551420 other hosts · 417 listed

Network context

SharedValueOther hosts
/24146.19.216.0/241 other host · 1 listed
NetworkAS134677 · Dromatics Systems Pte10 other hosts · 10 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-10-26
In this archive since2026-10-26
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
:37001listed87f2085c32b62166164053c1_2166164053c1_30d204a01551
:31028listed56a06a233bd32166164053c1_2166164053c1_30d204a01551

Observation history

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

  1. listed
  2. :37001 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
  • 2026-10-26 – 2026-10-30 (5 days)

Evidence

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

TLS certificate 87f2085c32b6

On :37001.

tls certificate87f2085c32b6a2cc709b365f55873e207a9caa10bffecf2fd16d3cf9d94d390c
cert validity2015-05-20 → 2025-05-17
cert typeself-signed
cert key2048-bit
cert serial (hex)08bb00ee
cert serial (decimal)146473198

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 56a06a233bd3

On :31028.

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.

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
networkAS134677 · Dromatics Systems Pte
confidence100 / 100

146.19.216.163:37001 · Cobalt Strike

listed · certificate 87f2085c32b6

146.19.216.163:31028 · Cobalt Strike

listed · certificate 56a06a233bd3

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 56a06a233bd30f693de25ef12cc19e8b2c92d3eb97dd969a2578df084c376478 · 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.

113.250.188.152 certificates · issuance cohort · JA4X templatelisted
60.247.206.232 certificates · issuance cohort · JA4X templatelisted
192.3.251.1092 certificates · issuance cohort · JA4X templatelisted
111.228.5.1272 certificates · issuance cohort · JA4X templatelisted
146.19.216.1702 certificates · issuance cohort · JA4X templatelisted
1.15.76.392 certificates · issuance cohort · JA4X templatelisted
150.158.102.1112 certificates · issuance cohort · JA4X templatelisted
154.219.101.562 certificates · issuance cohort · JA4X templatelisted
106.75.249.2022 certificates · issuance cohort · JA4X templatelisted
111.228.55.962 certificates · issuance cohort · JA4X templatelisted
175.27.214.1442 certificates · issuance cohort · JA4X templatelisted
47.120.32.72certificate · issuance cohort · JA4X templatelisted
43.136.19.18certificate · 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
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
106.12.61.28certificate · 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
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
95.182.114.29certificate · 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
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.

Neighbourhood · 146.19.216.0/24 · 1 other host

1 other host in this archive is in the same /24, shown for context.

146.19.216.170Cobalt Strike

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 == "146.19.216.163" and RemotePort in (31028, 37001))
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "146.19.216.163" and DestinationPort in (31028, 37001))
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="146.19.216.163" (All_Traffic.dest_port=31028 OR All_Traffic.dest_port=37001)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
Elastic (EQL)
network where
  (destination.ip == "146.19.216.163" and destination.port in (31028, 37001))

Cite this record

Plain text, for a ticket or a report
Address 146.19.216.163 Family Cobalt Strike (command-and-control server) Ports :31028, :37001 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-10-26 Last confirmed 2026-10-28 Record https://publicmosaic.com/ip/146.19.216.163 Source Public Mosaic, TLP:CLEAR