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confirmed host

43.155.169.245

Cobalt Strikecommand-and-control server · :443

Last confirmed 2026-09-15, first seen 2026-08-24. On AS132203.

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

43.155.169.245:443 · Cobalt Strike

Last confirmed (today)

first seen2026-08-24 06:26 UTC
serviceip-port · tcp · HTTPS blend-in
observed hostai2.qzz.io
networkAS132203 · Tencent Building, Kejizhongyi Avenue
confidence100 / 100
tls certificatec099f52af0291822650ff4444a77c5913e8394a56f992456a339095dbf0d6205
cert subjectCloudFlare Origin Certificate
cert subject orgCloudFlare, Inc.
cert issuer orgCloudFlare, Inc.
cert validity2026-07-15 → 2041-07-11
cert typeCA-signed
cert key2048-bit
cert serial (decimal)204710467007990411187126692872973256455837740865
cert names*.ai2.qzz.io ai2.qzz.io

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.

ja4xdc020972a4a8_9fb583da09a2_fb02ba79e164
jarm2ad2ad16d2ad2ad00042d42d00042ddb04deffa1705e2edc44cae1ed24a4da
cs watermark987654321

Beacon configuration

callbackwww.ai2.qzz.io · operator-supplied; a redirector or impersonation target, not an attribution
beacon typeHTTPS
cs versionCobalt Strike 4.9 (Sep 19, 2023)
getGET /jquery-3.3.1.min.js
postPOST /jquery-3.3.2.min.js
user-agentMozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko
sleep45s ±37%
watermark987654321
server key md590df1853e2860b40d61720990cfd163f
inject stub0b34150c342e35d2ffacb2227620d91c
spawn to x86%windir%\syswow64\dllhost.exe
spawn to x64%windir%\sysnative\dllhost.exe

Observation history

18d agotoday

Observed on 18 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 JA4X issuance template · 19 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. Full cohort →

101.33.202.134Adaptix107.172.217.220Cobalt Strike111.229.4.108Cobalt Strike151.236.21.109Havoc154.12.90.231Cobalt Strike154.205.145.109Havoc154.94.224.35Cobalt Strike155.117.155.141Adaptix165.154.225.239Cobalt Strike167.172.142.69Havoc193.239.85.15Havoc210.2.169.213Havoc216.238.54.156BTMOB23.148.212.123Cobalt Strike23.148.212.86Cobalt Strike41.216.189.62Adaptix45.87.53.6Cobalt Strike47.83.3.103Cobalt Strike87.232.84.18Adaptix

Shared Cobalt Strike watermark · 108 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.

1.15.76.39Cobalt Strike1.94.65.9Cobalt Strike101.200.193.211Cobalt Strike101.201.103.158Cobalt Strike101.42.136.73Cobalt Strike103.119.47.222Cobalt Strike103.217.186.180Cobalt Strike104.168.102.116Cobalt Strike106.15.10.2Cobalt Strike111.228.4.54Cobalt Strike111.231.116.164Cobalt Strike115.159.226.190Cobalt Strike115.190.161.178Cobalt Strike115.190.250.28Cobalt Strike116.198.233.179Cobalt Strike117.50.184.221Cobalt Strike117.72.242.9Cobalt Strike118.24.172.48Cobalt Strike118.89.79.131Cobalt Strike118.89.88.183Cobalt Strike119.45.160.160Cobalt Strike120.55.3.157Cobalt Strike120.55.93.58Cobalt Strike120.77.254.122Cobalt Strike

Showing 24 of 108. The rest are reachable from any of them.

Pivots & lookups

same ja4x → 19 other hosts same asn → 46 other hosts 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.