Public Mosaic C2 indicators
confirmed host

130.94.12.21

Cobalt Strikecommand-and-control server · :443

On AS154177.

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

SharedValueOther hosts
JA4X template2166164053c1_2166164053c1_30d204a01551420 other hosts · 417 listed
Cobalt Strike watermark10000013 other hosts · 13 listed

A Cobalt Strike watermark is a weak link: cracked and leaked builds share one.

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

Network context

SharedValueOther hosts
NetworkAS154177 · LIGHT NODE57 other hosts · 56 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-09-22
In this archive since2026-09-22
Evidence1 certificate · 1 beacon configuration · 1 file served
Look up elsewhereVirusTotal · Shodan · Censys
About this listingWhat a listing means · Is this your address?

Observation history

Listed on 39 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
  • 2026-09-22 – 2026-10-30 (39 days)

130.94.12.21:443 · Cobalt Strike

Last confirmed (36 days ago)

first seen2026-09-22 08:58 UTC
serviceip-port · tcp · HTTPS
observed hostjquery.com
networkAS154177 · LIGHT NODE
confidence100 / 100
tls certificate267ae795b7afec119c3604a9aa870c8d6fd112066aa5668994394598913366ef
cert subjectjquery.com
cert subject orgjQuery
cert issuerjquery.com
cert issuer orgjQuery
cert validity2026-09-20 → 2027-09-20
cert typeself-signed
cert key2048-bit
cert serial (hex)217199f1
cert serial (decimal)561093105

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
jarm07d14d16d21d21d07c07d14d07d21d9b2f5869a6985368a9dec764186a9175
cs watermark100000

Beacon configuration

callback130.94.12.21 · same as this host
beacon typeHTTPS
cs versionCobalt Strike 4.5 (Dec 14, 2021)
getGET /jquery-3.3.1.min.js
postPOST /jquery-3.3.2.min.js
user-agentMozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
sleep45s ±37%
watermark100000
server key md5418dd326f468dd24c3682ef1b1706097
inject stubb85af34fe097b7687db55c07062fe0a8
spawn to x86%windir%\syswow64\dllhost.exe
spawn to x64%windir%\sysnative\dllhost.exe

Hosts sharing a value with this one

426 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
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, 380 are past the 40 hosts shown.

38.76.219.253JA4X templatelisted
8.163.59.20JA4X templatelisted
117.72.182.5JA4X templatelisted
192.252.185.78JA4X templatelisted
49.232.42.116JA4X templatelisted
156.239.252.191JA4X template · watermarklisted
47.109.23.77JA4X templatelisted
113.250.188.15JA4X templatelisted
47.105.36.109JA4X templatelisted
85.175.101.203JA4X templatelisted
47.251.177.187JA4X templatelisted
101.42.255.92JA4X templatelisted
8.152.212.104JA4X templatelisted
47.95.201.24JA4X templatelisted
154.12.86.154JA4X templatelisted
111.231.116.164JA4X templatelisted
117.72.181.104JA4X templatelisted
60.247.206.23JA4X templatelisted
47.120.32.72JA4X templatelisted
117.72.242.9JA4X templatelisted
43.108.51.124JA4X templatelisted
222.255.215.42JA4X templatelisted
116.198.233.179JA4X templatelisted
82.156.219.31JA4X templatelisted
179.43.186.214JA4X templatelisted
92.222.50.154JA4X templatelisted
85.121.5.211JA4X templatelisted
8.222.166.74JA4X templatelisted
64.177.112.233JA4X templatelisted
64.118.154.116JA4X templatelisted
54.164.24.73JA4X templatelisted
51.159.194.10JA4X templatelisted
47.97.206.32JA4X templatelisted
45.154.12.150JA4X templatelisted
43.138.225.166JA4X templatelisted
43.136.19.18JA4X templatelisted
43.108.84.25JA4X templatelisted
37.60.141.43JA4X templatelisted
38.207.160.73JA4X templatelisted
23.155.44.134JA4X templatelisted
Cobalt Strike watermark · 13 other hosts · 13 listed

The watermark identifies the Cobalt Strike licence a beacon was built with. Cracked and leaked builds share watermarks widely, so it is not evidence of a single operator.

Of these, 1 is listed under an earlier value and 12 are past the 40 hosts shown.

Samples served · 1 file

Files this address was seen serving, each identified by running or analysing it. A widely distributed file can reach unrelated hosts.

Every file here was served on :443.

FileConfirmedFile last seen
16b4dbf9ff23d8eee99ed650a62bba88d66e68d3d2142c10f3143884ec9266a7analysed

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 and for the 1 file this address served. Queries hold only addresses, ports and file hashes.

Microsoft Defender XDR (KQL)
DeviceNetworkEvents
| where Timestamp > ago(30d)
| where (RemoteIP == "130.94.12.21" and RemotePort in (443))
DeviceFileEvents
| where Timestamp > ago(30d)
| where SHA256 in ("16b4dbf9ff23d8eee99ed650a62bba88d66e68d3d2142c10f3143884ec9266a7")
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "130.94.12.21" 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="130.94.12.21" (All_Traffic.dest_port=443)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
| tstats summariesonly=false count min(_time) as first_time max(_time) as last_time
    from datamodel=Endpoint.Filesystem where earliest=-30d
    (Filesystem.file_hash="16b4dbf9ff23d8eee99ed650a62bba88d66e68d3d2142c10f3143884ec9266a7")
    by Filesystem.dest Filesystem.file_path Filesystem.file_hash
Elastic (EQL)
network where
  (destination.ip == "130.94.12.21" and destination.port in (443))
file where file.hash.sha256 in ("16b4dbf9ff23d8eee99ed650a62bba88d66e68d3d2142c10f3143884ec9266a7")

Cite this record

Plain text, for a ticket or a report
Address 130.94.12.21 Family Cobalt Strike (command-and-control server) Ports :443 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/130.94.12.21 Source Public Mosaic, TLP:CLEAR