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confirmed host

47.83.3.103

Cobalt Strikecommand-and-control server · :10443

Last confirmed 2026-09-15, first seen 2026-09-02. On AS45102.

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

47.83.3.103:10443 · Cobalt Strike

Last confirmed (today)

first seen2026-09-02 10:55 UTC
serviceip-port · tcp
observed hostcloneflare.com
networkAS45102 · Alibaba (US) Technology
confidence100 / 100
tls certificate858ae53e03c0c0dbd14f8df3b9fccb7c0e8a9577beef5c05e3ad3f1cc529c9ae
cert subjectCloudFlare Origin Certificate
cert subject orgCloudFlare, Inc.
cert issuer orgCloudFlare, Inc.
cert validity2026-08-04 → 2041-07-31
cert typeCA-signed
cert key2048-bit
cert serial (decimal)183236510620273712863894010990493476130421415389
cert names*.cloneflare.com cloneflare.com

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
jarm2ad2ad16d2ad2ad00042d42d00042de5fb3038104f457d92ba02e9311512c2
cs watermark100000

Beacon configuration

callback47.83.3.103 · same as this host
beacon typeHTTPS
cs versionCobalt Strike 4.5 (Dec 14, 2021)
getGET /cgi/rem
postPOST /cgi/log
user-agentMozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.54 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.54
sleep10s ±20%
watermark100000
server key md5e51c06cb1f328d58970560e3ee1cf3ff
inject stub08f01a090887dee925a03fa23f510658
spawn to x86%windir%\syswow64\dllhost.exe
spawn to x64%windir%\sysnative\dllhost.exe

Observation history

18d agotoday

Observed on 14 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 Strike41.216.189.62Adaptix43.155.169.245Cobalt Strike45.87.53.6Cobalt Strike87.232.84.18Adaptix

Shared Cobalt Strike watermark · 8 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.

111.228.49.20Cobalt Strike111.229.4.108Cobalt Strike156.239.252.191Cobalt Strike39.102.58.148Cobalt Strike43.155.9.112Cobalt Strike47.86.184.71Cobalt Strike65.49.233.218Cobalt Strike8.148.26.139Cobalt Strike

Pivots & lookups

same ja4x → 19 other hosts same asn → 93 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.