confirmed host

IP address 23.95.48.157

Cobalt Strikecommand-and-control server · :6666

On AS36352.

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
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.

Network context

SharedValueOther hosts
/2423.95.48.0/241 other host · 1 listed
NetworkAS36352 · HostPapa160 other hosts · 151 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-10-06
Evidence1 beacon configuration · 1 file served
Look up elsewhereVirusTotal · Shodan · Censys

Observation history

Listed on 25 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :6666

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
  • 2026-10-06 – 2026-10-30 (25 days)

23.95.48.157:6666 · Cobalt Strike

Last confirmed (24 days ago)

first seen2026-10-06 11:26 UTC
serviceip-port · tcp
networkAS36352 · HostPapa
confidence100 / 100
cs watermark100000

Beacon configuration

callback192.168.44.128 · set in the beacon by its builder; may be a redirector or a borrowed name
beacon typeHTTP
cs versionCobalt Strike 4.5 (Dec 14, 2021)
getGET /push
postPOST /submit.php
user-agentMozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0; BOIE9;ENUS)
sleep60s ±0%
watermark100000
server key md5c6a8c22c7085b68eddb878b0d8742e91
inject stub04e0a11be59147a8d73d2b3e9fea832c
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

Hosts sharing a value with this one

13 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
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.

156.239.252.191watermarklisted
111.229.4.108watermarklisted
47.86.184.71watermarklisted
123.207.214.140watermarklisted
1.94.100.198watermarklisted
39.102.58.148watermarklisted
47.83.3.103watermarklisted
43.155.9.112watermarklisted
130.94.12.21watermarklisted
187.52.119.59watermarklisted
111.228.49.20watermarklisted
65.49.233.218watermarklisted
8.148.26.139watermarklisted

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 :6666.

FileConfirmedFile last seen
5f849b1b30c99e85ba6038a1bec0eb1dda1822050120835800a751e0aeace716analysed

Neighbourhood · 23.95.48.0/24 · 1 other host

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

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 == "23.95.48.157" and RemotePort in (6666))
DeviceFileEvents
| where Timestamp > ago(30d)
| where SHA256 in ("5f849b1b30c99e85ba6038a1bec0eb1dda1822050120835800a751e0aeace716")
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "23.95.48.157" and DestinationPort in (6666))
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="23.95.48.157" (All_Traffic.dest_port=6666)))
    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="5f849b1b30c99e85ba6038a1bec0eb1dda1822050120835800a751e0aeace716")
    by Filesystem.dest Filesystem.file_path Filesystem.file_hash
Elastic (EQL)
network where
  (destination.ip == "23.95.48.157" and destination.port in (6666))
file where file.hash.sha256 in ("5f849b1b30c99e85ba6038a1bec0eb1dda1822050120835800a751e0aeace716")

Cite this record

Plain text, for a ticket or a report
Address 23.95.48.157 Family Cobalt Strike (command-and-control server) Ports :6666 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-10-06 Last confirmed 2026-10-06 Record https://publicmosaic.com/ip/23.95.48.157 Source Public Mosaic, TLP:CLEAR