Public Mosaic C2 indicators
confirmed host

145.79.143.4

Cobalt Strikecommand-and-control server · :80

On AS205548.

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 watermark987654321166 other hosts · 166 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
/24145.79.143.0/241 other host · 1 listed
NetworkAS205548 · ZOUTER3 other hosts · 3 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-09-20
In this archive since2026-09-20
Evidence1 beacon configuration · 3 files served
Look up elsewhereVirusTotal · Shodan · Censys
About this listingWhat a listing means · Is this your address?

Observation history

Listed on 41 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :80

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
  • 2026-09-20 – 2026-10-30 (41 days)

145.79.143.4:80 · Cobalt Strike

Last confirmed (38 days ago)

first seen2026-09-20 08:13 UTC
serviceip-port · tcp
networkAS205548 · ZOUTER
confidence98 / 100
cs watermark987654321

Beacon configuration

callback145.79.143.4 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.8 (Feb 28, 2023)
getGET /load
postPOST /submit.php
user-agentMozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; MALCJS)
sleep60s ±0%
watermark987654321
server key md5e7d6178912ae3371ab3f99cb282ef40d
inject stube43a1b63f09794f74d90a9889f7acb77
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

Hosts sharing a value with this one

166 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
Cobalt Strike watermark · 166 other hosts · 166 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, 126 are past the 40 hosts shown.

101.200.193.211watermarklisted
119.45.160.160watermarklisted
85.175.101.203watermarklisted
111.231.116.164watermarklisted
165.154.225.239watermarklisted
43.108.51.124watermarklisted
222.255.215.42watermarklisted
179.43.186.214watermarklisted
111.170.148.141watermarklisted
106.13.189.138watermarklisted
82.158.89.75watermarklisted
82.158.89.214watermarklisted
49.51.230.17watermarklisted
38.76.183.197watermarklisted
23.238.82.42watermarklisted
183.60.226.2watermarklisted
124.223.188.23watermarklisted
8.163.98.217watermarklisted
46.19.140.50watermarklisted
43.203.112.69watermarklisted
38.76.190.209watermarklisted
20.109.163.207watermarklisted
175.178.126.48watermarklisted
118.126.95.117watermarklisted
117.72.220.70watermarklisted
106.55.253.229watermarklisted
101.35.217.145watermarklisted
14.225.212.124watermarklisted
154.37.218.73watermarklisted
115.190.250.28watermarklisted
120.55.93.58watermarklisted
101.34.208.175watermarklisted
45.192.248.45watermarklisted
118.89.79.131watermarklisted
8.146.227.247watermarklisted
43.139.108.161watermarklisted
101.42.136.73watermarklisted
192.255.248.153watermarklisted
150.187.25.242watermarklisted
217.194.133.89watermarklisted

Samples served · 3 files

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 :80.

FileConfirmedFile last seen
a961c2018162550ed5a5a7d31cec05ed194e07580921fbc900849cd96d423dafanalysed
06a460e1701c6b975c935e1536c16dbf0592ca9420a3cc2586d0534727b31397analysed
3d489ebc55ad2909321eb41b7faaf1abe0bbc1ac90e90c2b3791ed8012d6a5efanalysed

Neighbourhood · 145.79.143.0/24 · 1 other host

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

145.79.143.166VShell

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 3 files this address served. Queries hold only addresses, ports and file hashes.

Microsoft Defender XDR (KQL)
DeviceNetworkEvents
| where Timestamp > ago(30d)
| where (RemoteIP == "145.79.143.4" and RemotePort in (80))
DeviceFileEvents
| where Timestamp > ago(30d)
| where SHA256 in ("06a460e1701c6b975c935e1536c16dbf0592ca9420a3cc2586d0534727b31397", "3d489ebc55ad2909321eb41b7faaf1abe0bbc1ac90e90c2b3791ed8012d6a5ef", "a961c2018162550ed5a5a7d31cec05ed194e07580921fbc900849cd96d423daf")
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "145.79.143.4" and DestinationPort in (80))
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="145.79.143.4" (All_Traffic.dest_port=80)))
    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="06a460e1701c6b975c935e1536c16dbf0592ca9420a3cc2586d0534727b31397" OR Filesystem.file_hash="3d489ebc55ad2909321eb41b7faaf1abe0bbc1ac90e90c2b3791ed8012d6a5ef" OR Filesystem.file_hash="a961c2018162550ed5a5a7d31cec05ed194e07580921fbc900849cd96d423daf")
    by Filesystem.dest Filesystem.file_path Filesystem.file_hash
Elastic (EQL)
network where
  (destination.ip == "145.79.143.4" and destination.port in (80))
file where file.hash.sha256 in ("06a460e1701c6b975c935e1536c16dbf0592ca9420a3cc2586d0534727b31397", "3d489ebc55ad2909321eb41b7faaf1abe0bbc1ac90e90c2b3791ed8012d6a5ef", "a961c2018162550ed5a5a7d31cec05ed194e07580921fbc900849cd96d423daf")

Cite this record

Plain text, for a ticket or a report
Address 145.79.143.4 Family Cobalt Strike (command-and-control server) Ports :80 Status listed (feed checked 2026-10-30 19:07 UTC) First seen 2026-09-20 Last confirmed 2026-09-22 Record https://publicmosaic.com/ip/145.79.143.4 Source Public Mosaic, TLP:CLEAR