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confirmed host

109.236.50.145

SliverCobalt Strikecontrollers · :31337, :5093, :8080, :8888, :80

Last confirmed 2026-09-15, first seen 2026-08-30. On AS60781. Its certificate is shared with 3 other confirmed hosts.

listed last confirmed feed checked TLP:CLEAR SURICATA .RULES SEE THE LIVE FEED →

This address answered on 5 ports — :31337, :5093, :8080, :8888, :80, across 2 malware families.

109.236.50.145:31337 · Sliver

Last confirmed (today)

first seen2026-09-08 13:43 UTC
serviceip-port · tcp · Sliver default
networkAS60781 · LeaseWeb Netherlands
confidence100 / 100
tls certificate8073d5c37be2a686880500518a2292e04ad1a0657274edf107b376982caf3871
cert subjectmultiplayer
cert issueroperators
cert validity2026-03-16 → 2029-03-15
cert typeCA-signed
cert key256-bit
cert serial (decimal)74555944826428739228694632825004710964
cert namesmultiplayer

The certificate names above were validated by the issuing authority at issuance. They describe the certificate, not conduct by the names' owner — a legitimately issued certificate can be deployed on a listed host by whoever holds its private key, so treat the name as a pivot to investigate rather than as an attribution.

ja4x7022c563de38_7022c563de38_bf0f0589fc03

109.236.50.145:5093 · Cobalt Strike

Last confirmed (today)

first seen2026-09-07 11:49 UTC
serviceip-port · tcp
networkAS60781 · LeaseWeb Netherlands
confidence100 / 100
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 (decimal)856871957

The certificate names above are what the certificate ASSERTS, not proof this host owns them — a self-signed certificate can claim any subject, so treat a familiar name here as an impersonation attempt rather than an identity.

ja4x2166164053c1_2166164053c1_30d204a01551
cohortshared issuance template · 4 hosts

109.236.50.145:8080 · Cobalt Strike

Last confirmed (14 days ago)

first seen2026-08-30 22:33 UTC
serviceip-port · tcp · alt-HTTP
networkAS60781 · LeaseWeb Netherlands
confidence100 / 100
cs watermark0

Beacon configuration

callback109.236.50.145 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.1 (Jun 25, 2020)
getGET /api/v2/status
postPOST /api/v2/submit
user-agentMozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0)
sleep30s ±20%
watermark0
server key md55626f3d1e8f1a1747431388d77323191
inject stub187ab8f98098de95714613f8544c9613
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

109.236.50.145:8888 · Cobalt Strike

Last confirmed (today)

first seen2026-08-30 22:33 UTC
serviceip-port · tcp
networkAS60781 · LeaseWeb Netherlands
confidence100 / 100
cs watermark0

Beacon configuration

callback192.168.1.4 · operator-supplied; a redirector or impersonation target, not an attribution
beacon typeHTTP
cs versionCobalt Strike 4.1 (Jun 25, 2020)
getGET /api/v2/news
postPOST /api/v2/submit
user-agentMozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0)
sleep30s ±20%
watermark0
server key md55626f3d1e8f1a1747431388d77323191
inject stub187ab8f98098de95714613f8544c9613
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

109.236.50.145:80 · Cobalt Strike

Last confirmed (today)

first seen2026-08-30 22:33 UTC
serviceip-port · tcp
networkAS60781 · LeaseWeb Netherlands
confidence100 / 100
cs watermark0

Beacon configuration

callback109.236.50.145 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.1 (Jun 25, 2020)
getGET /api/v2/news
postPOST /api/v2/submit
user-agentMozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)
sleep30s ±20%
watermark0
server key md55626f3d1e8f1a1747431388d77323191
inject stub187ab8f98098de95714613f8544c9613
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

Observation history

18d agotoday

Observed on 17 of the 18 days since this archive began recording, 2026-08-29 UTC. Presence is per UTC day: a day is marked when the scanner confirmed this address at least once, not once per scan.

Shared TLS certificates · 3 hosts

This address served 2 distinct certificates. The hosts below share at least one of them — the set is a union, not a single cluster.

118.25.100.71Cobalt Strike146.70.232.107Cobalt Strike39.96.125.59Cobalt Strike

Shared JA4X issuance template · 772 hosts

These hosts issued certificates from the same template — the same distinguished-name fields hashed in the same order. It links tooling, not necessarily an operator.

1.13.165.181Sliver1.14.104.208Cobalt Strike1.14.73.118Sliver1.15.76.39Cobalt Strike100.53.240.26Sliver101.126.10.34Cobalt Strike101.126.90.250Sliver101.200.193.211Cobalt Strike101.200.29.195Cobalt Strike101.200.85.0Cobalt Strike101.201.103.158Cobalt Strike101.201.109.2Cobalt Strike101.33.200.145Cobalt Strike101.33.225.32Cobalt Strike101.35.238.122Cobalt Strike101.42.136.73Cobalt Strike101.42.255.92Cobalt Strike101.42.96.140Sliver101.43.103.154Cobalt Strike102.203.116.201Cobalt Strike103.119.47.222Cobalt Strike103.12.148.37Cobalt Strike103.121.92.150Sliver103.121.92.249Sliver

Showing 24 of 772. The rest are reachable from any of them.

Shared Cobalt Strike watermark · 6 hosts

A watermark identifies the Cobalt Strike licence a beacon was generated from. Hosts sharing one were built from the same copy of the software — which is not the same as one operator, since cracked and leaked builds circulate widely and share a watermark by definition.

117.50.180.204Cobalt Strike118.25.100.71Cobalt Strike14.103.160.117Cobalt Strike39.96.125.59Cobalt Strike47.236.56.15Cobalt Strike47.96.106.127Cobalt Strike

Pivots & lookups

same asn → 1 other host lookups: virustotal · shodan · censys

Listed in error?

This page is generated from automated scanning and is publicly available. If you are responsible for this address and it should not be listed, write to support@publicmosaic.com — see abuse & takedown for what we need and what happens next, or opt-out to exclude a whole range from scanning.

Addresses are frequently compromised third-party hosts rather than infrastructure their owner stood up. A listing records what a scan observed at a point in time; it is not an allegation about whoever pays for the address.