Public Mosaic C2 indicators
confirmed host

47.115.229.163

Cobalt Strikecommand-and-control server · :55556, :55555

On AS37963. Its certificate is shared with 4 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 certificate64257fc0fac31c01a5ccd816c73ea86e639260da1604d04db869bb603c2886e64 other hosts · 4 listed
Issuance cohort2166164053c1_2166164053c1_30d204a01551_60e4afe8b719_db3685ee8f854 other hosts · 4 listed
JA4X template2166164053c1_2166164053c1_30d204a01551420 other hosts · 417 listed

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

Network context

SharedValueOther hosts
NetworkAS37963 · Hangzhou Alibaba Advertising431 other hosts · 430 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-09-28
In this archive since2026-09-28
Ports2 · 2 listed
Evidence1 certificate · 1 beacon configuration · 1 file served
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 certificateJA4XConfiguration
:55556listedbeacon
:55555listed64257fc0fac32166164053c1_2166164053c1_30d204a01551

Observation history

Listed on 33 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :55556
  3. :55555

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
  • 2026-09-28 – 2026-10-30 (33 days)

Evidence

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

TLS certificate 64257fc0fac3

On :55555.

tls certificate64257fc0fac31c01a5ccd816c73ea86e639260da1604d04db869bb603c2886e6
cert subjectMajor Cobalt Strike
cert subject orgcobaltstrike
cert issuerMajor Cobalt Strike
cert issuer orgcobaltstrike
cert validity2019-06-14 → 2019-09-12
cert typeself-signed
cert key2048-bit
cert serial (hex)3312d415
cert serial (decimal)856871957

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

Beacon configuration

On :55556.

callback47.115.229.163 · same as this host
beacon port55556
beacon typeHTTP
cs versionCobalt Strike 3.14 (May 04, 2019)
getGET /updates.rss
postPOST /submit.php
user-agentMozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)
sleep60s ±0%
watermark1873433027
server key md53da5d2c3a917b5787e73197bfecb5dc4
inject stubda7489d9f303b6a5dbc484fdf78721d1
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

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
networkAS37963 · Hangzhou Alibaba Advertising
confidence100 / 100

47.115.229.163:55556 · Cobalt Strike

listed · beacon

47.115.229.163:55555 · Cobalt Strike

listed · certificate 64257fc0fac3

cohortshared issuance template · 5 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 · 4 other hosts · 4 listed

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

146.70.232.107certificate · issuance cohort · JA4X templatelisted
109.236.50.145certificate · issuance cohort · JA4X templatelisted
39.96.125.59certificate · issuance cohort · JA4X templatelisted
118.25.100.71certificate · issuance cohort · JA4X templatelisted
Issuance cohort · 4 other hosts · 4 listed

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

Of these, 4 are listed under an earlier value.

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, 4 are listed under an earlier value and 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 templatelisted
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

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 :55556.

FileConfirmedFile last seen
cf3aa8431687d981bacdefdf2716c37eb0d229655b3e6d2a73a2c7544f528d00analysed

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 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 == "47.115.229.163" and RemotePort in (55555, 55556))
DeviceFileEvents
| where Timestamp > ago(30d)
| where SHA256 in ("cf3aa8431687d981bacdefdf2716c37eb0d229655b3e6d2a73a2c7544f528d00")
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "47.115.229.163" and DestinationPort in (55555, 55556))
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="47.115.229.163" (All_Traffic.dest_port=55555 OR All_Traffic.dest_port=55556)))
    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="cf3aa8431687d981bacdefdf2716c37eb0d229655b3e6d2a73a2c7544f528d00")
    by Filesystem.dest Filesystem.file_path Filesystem.file_hash
Elastic (EQL)
network where
  (destination.ip == "47.115.229.163" and destination.port in (55555, 55556))
file where file.hash.sha256 in ("cf3aa8431687d981bacdefdf2716c37eb0d229655b3e6d2a73a2c7544f528d00")

Cite this record

Plain text, for a ticket or a report
Address 47.115.229.163 Family Cobalt Strike (command-and-control server) Ports :55555, :55556 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-09-28 Last confirmed 2026-10-30 Record https://publicmosaic.com/ip/47.115.229.163 Source Public Mosaic, TLP:CLEAR