public mosaic llc support@publicmosaic.com
confirmed host

137.220.151.95

Cobalt Strikecommand-and-control server · :8888, :9999, :443

Last confirmed 2026-09-15, first seen 2026-08-28. On AS152194.

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

This address answered on 3 ports — :8888, :9999, :443.

137.220.151.95:8888 · Cobalt Strike

Last confirmed (today)

first seen2026-08-28 20:24 UTC
serviceip-port · tcp
networkAS152194 · CTG Server
confidence100 / 100
cs watermark666666

Beacon configuration

callback137.220.151.95 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.5 (Dec 14, 2021)
getGET /include/template/isx.php
postPOST /modules/mod_search.php
user-agentMozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 5.2) Java/1.5.0_08
sleep30s ±0%
watermark666666
server key md591ecfa431846507c49a38f1cf3d1a6e1
inject stub00000000000000000000000000000000
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

137.220.151.95:9999 · Cobalt Strike

Last confirmed (today)

first seen2026-08-28 20:24 UTC
serviceip-port · tcp
networkAS152194 · CTG Server
confidence100 / 100
cs watermark666666

Beacon configuration

callback137.220.151.95 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.5 (Dec 14, 2021)
getGET /wp08/wp-includes/dtcla.php
postPOST /includes/phpmailer/class.pop3.php
user-agentMozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 5.2) Java/1.5.0_08
sleep30s ±0%
watermark666666
server key md591ecfa431846507c49a38f1cf3d1a6e1
inject stub00000000000000000000000000000000
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.exe

137.220.151.95:443 · Cobalt Strike

Last confirmed (today)

first seen2026-08-28 20:24 UTC
serviceip-port · tcp · HTTPS blend-in
networkAS152194 · CTG Server
confidence100 / 100
cs watermark666666

Beacon configuration

callback137.220.151.95 · same as this host
beacon typeHTTP
cs versionCobalt Strike 4.5 (Dec 14, 2021)
getGET /wp06/wp-includes/po.php
postPOST /modules/mod_search.php
user-agentMozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 5.2) Java/1.5.0_08
sleep30s ±0%
watermark666666
server key md591ecfa431846507c49a38f1cf3d1a6e1
inject stub00000000000000000000000000000000
spawn to x86%windir%\syswow64\rundll32.exe
spawn to x64%windir%\sysnative\rundll32.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 Cobalt Strike watermark · 2 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.

101.43.53.103Cobalt Strike117.72.181.104Cobalt Strike

Pivots & lookups

same asn → 79 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.