Public Mosaic C2 indicators
confirmed host

46.19.140.50

Cobalt Strikecommand-and-control server · :50050, :443

On AS51852.

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
Issuance cohorta373a9f83c6b_7022c563de38_2e3757343cb0_dab21666fd67_298842c5b8722 other hosts · 2 listed
JA4X templatea373a9f83c6b_7022c563de38_2e3757343cb0233 other hosts · 218 listed
JA4X template2166164053c1_2166164053c1_30d204a01551420 other hosts · 417 listed
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, 2 certificates.

Network context

SharedValueOther hosts
/2446.19.140.0/243 other hosts · 3 listed
NetworkAS51852 · Private Layer11 other hosts · 11 listed

Hosts near this one, for context only.

Summary

First seen by the scanner2026-09-30
In this archive since2026-09-30
Ports2 · 2 listed
Evidence2 certificates · 1 beacon configuration · 5 files 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
:50050 · Cobalt Strike team-server defaultlistedaf44fe6f41c32166164053c1_2166164053c1_30d204a01551
:443 · HTTPSlistedd994b39655cca373a9f83c6b_7022c563de38_2e3757343cb0beacon

Observation history

Listed on 31 of the 63 days since this archive began recording, 2026-08-29 UTC.

  1. listed
  2. :50050
  3. :443

2026-08-292026-10-30

  • first seen to last confirmed

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
  • 2026-09-30 – 2026-10-30 (31 days)

Evidence

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

TLS certificate af44fe6f41c3

On :50050.

tls certificateaf44fe6f41c343d5ca83cbd9de5ae34f7e6500d42fd00210377256d67750ed3c
cert subjectPwn3rs Striked
cert subject orgPwn3rs
cert issuerPwn3rs Striked
cert issuer orgPwn3rs
cert validity2026-09-13 → 2026-12-12
cert typeself-signed
cert key2048-bit
cert serial (hex)4b49c591
cert serial (decimal)1263125905

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

TLS certificate d994b39655cc

On :443.

tls certificated994b39655cce9ff3c074d77a3ecc11a677a13a017f4a459f79513242d1a00dd
cert subjectcomplianceportals.com
cert issuerYE1
cert issuer orgLet's Encrypt
cert validity2026-09-27 → 2026-12-26
cert typeissuer-signed
cert key256-bit
cert serial (hex)0551ff80315cac92c63e8354fdb5ce02e3b0
cert serial (decimal)463463920133500765170464593546673733690288
cert namescomplianceportals.com www.complianceportals.com

The names above are what the certificate asserts, signed by the issuer it names, which may be a public certificate authority, a private one, or one a builder ships. This site verifies none of it, so treat a name here as a lead to investigate, never an attribution.

Beacon configuration

On :443.

callbackcomplianceportals.com · same as this host
beacon port443
beacon typeHTTPS
cs versionCobalt Strike 4.9 (Sep 19, 2023)
getGET /IE9CompatViewList.xml
postPOST /submit.php
user-agentMozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0; ASU2JS)
sleep60s ±0%
watermark987654321
server key md5eac9d1e8275e1cb4963e1e3b83769ca6
inject stubae5afcfee8026674dc8f3b4f2da46c7f
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
networkAS51852 · Private Layer
confidence100 / 100

46.19.140.50:50050 · Cobalt Strike

listed · certificate af44fe6f41c3

46.19.140.50:443 · Cobalt Strike

listed · certificate d994b39655cc · beacon

observed hostcomplianceportals.com
cohortshared issuance template · 3 hosts
jarm28d28d28d00028d00042d42d000000e1ea2a807a629b496b664cf07ad7c08d

Hosts sharing a value with this one

716 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.

AddressFamilySharesLast confirmedStatus
Issuance cohort · 2 other hosts · 2 listed

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

202.146.222.253DarkSwordissuance cohort · JA4X templatelisted
192.253.229.191DarkSwordissuance cohort · JA4X templatelisted
JA4X template a373a9f83c6b_7022c563de38_2e3757343cb0 · 233 other hosts · 218 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, 2 are listed under an earlier value and 193 are past the 40 hosts shown.

207.56.119.139Flying EagleJA4X templatelisted
186.244.245.148DarkSwordJA4X templatelisted
213.111.176.26AdaptixJA4X templatelisted
38.76.216.85Flying EagleJA4X templatelisted
103.52.152.203Flying EagleJA4X templatelisted
207.56.119.48Flying EagleJA4X templatelisted
85.137.62.225DarkSwordJA4X templatelisted
85.137.62.160DarkSwordJA4X templatelisted
208.87.202.232DarkSwordJA4X templatelisted
192.162.199.251UnamJA4X templatelisted
181.215.18.87DarkSwordJA4X templatelisted
154.18.187.174DarkSwordJA4X templatelisted
130.94.67.4DarkSwordJA4X templatelisted
131.123.43.22NimPlantJA4X templatelisted
101.33.76.147DarkSwordJA4X templatelisted
20.118.221.53AdaptixJA4X templatelisted
157.137.215.66HavocJA4X templatelisted
152.70.24.49HookJA4X templatelisted
45.142.143.152AdaptixJA4X templatelisted
45.142.142.252AdaptixJA4X templatelisted
89.34.227.72AdaptixJA4X templatelisted
69.8.133.42AdaptixJA4X templatelisted
149.104.71.157AdaptixJA4X templatelisted
216.167.81.141OverlordJA4X templatelisted
69.8.133.228AdaptixJA4X templatelisted
52.196.120.218Flying EagleJA4X templatelisted
116.213.43.162Diaoyu KejiJA4X templatelisted
179.43.175.26BTMOBJA4X templatelisted
194.100.215.101PyramidJA4X templatelisted
69.8.133.232AdaptixJA4X templatelisted
161.35.239.147HavocJA4X templatelisted
179.43.175.47OverlordJA4X templatelisted
43.98.165.114DarkSwordJA4X templatelisted
64.90.30.189Flying EagleJA4X templatelisted
108.187.43.82Flying EagleJA4X templatelisted
192.229.116.34Flying EagleJA4X templatelisted
45.194.36.5Flying EagleJA4X templatelisted
45.194.36.21Flying EagleJA4X templatelisted
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, 166 are past the 40 hosts shown.

Samples served · 5 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 :443.

FileConfirmedFile last seen
508048a022fe22181338bfb68018d86d7acb8ce3bc25aa162bf6d0de9d2e6d7fanalysed
09e539976b108e540de0573d4e83dd44ad7d9783f434642ae3cca299b06e88e6analysed
b84800a7afdbc1e8eb36a4e80803a35d3bdc6ded00b99fbcb04dc3a145eb3794analysed
d30ed2320ce6494d85f90b36aa861bf7ad961a90a196ac80a48b4598c191bff4analysed
21a8497bb49d86eb2d857102628347a5039b7de4b6712f659176d4d5dac5ead7analysed

Neighbourhood · 46.19.140.0/24 · 3 other hosts

3 other hosts in this archive are in the same /24, shown for context.

46.19.140.39Sliver46.19.140.40Sliver46.19.140.45Sliver

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

Microsoft Defender XDR (KQL)
DeviceNetworkEvents
| where Timestamp > ago(30d)
| where (RemoteIP == "46.19.140.50" and RemotePort in (443, 50050))
DeviceFileEvents
| where Timestamp > ago(30d)
| where SHA256 in ("09e539976b108e540de0573d4e83dd44ad7d9783f434642ae3cca299b06e88e6", "21a8497bb49d86eb2d857102628347a5039b7de4b6712f659176d4d5dac5ead7", "508048a022fe22181338bfb68018d86d7acb8ce3bc25aa162bf6d0de9d2e6d7f", "b84800a7afdbc1e8eb36a4e80803a35d3bdc6ded00b99fbcb04dc3a145eb3794", "d30ed2320ce6494d85f90b36aa861bf7ad961a90a196ac80a48b4598c191bff4")
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "46.19.140.50" and DestinationPort in (443, 50050))
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="46.19.140.50" (All_Traffic.dest_port=443 OR All_Traffic.dest_port=50050)))
    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="09e539976b108e540de0573d4e83dd44ad7d9783f434642ae3cca299b06e88e6" OR Filesystem.file_hash="21a8497bb49d86eb2d857102628347a5039b7de4b6712f659176d4d5dac5ead7" OR Filesystem.file_hash="508048a022fe22181338bfb68018d86d7acb8ce3bc25aa162bf6d0de9d2e6d7f" OR Filesystem.file_hash="b84800a7afdbc1e8eb36a4e80803a35d3bdc6ded00b99fbcb04dc3a145eb3794" OR Filesystem.file_hash="d30ed2320ce6494d85f90b36aa861bf7ad961a90a196ac80a48b4598c191bff4")
    by Filesystem.dest Filesystem.file_path Filesystem.file_hash
Elastic (EQL)
network where
  (destination.ip == "46.19.140.50" and destination.port in (443, 50050))
file where file.hash.sha256 in ("09e539976b108e540de0573d4e83dd44ad7d9783f434642ae3cca299b06e88e6", "21a8497bb49d86eb2d857102628347a5039b7de4b6712f659176d4d5dac5ead7", "508048a022fe22181338bfb68018d86d7acb8ce3bc25aa162bf6d0de9d2e6d7f", "b84800a7afdbc1e8eb36a4e80803a35d3bdc6ded00b99fbcb04dc3a145eb3794", "d30ed2320ce6494d85f90b36aa861bf7ad961a90a196ac80a48b4598c191bff4")

Cite this record

Plain text, for a ticket or a report
Address 46.19.140.50 Family Cobalt Strike (command-and-control server) Ports :443, :50050 Status listed (feed checked 2026-10-30 18:37 UTC) First seen 2026-09-30 Last confirmed 2026-10-30 Record https://publicmosaic.com/ip/46.19.140.50 Source Public Mosaic, TLP:CLEAR