IP address 182.255.91.104
Last confirmed 2026-09-02, first seen 2026-08-26. On AS35916.
This address answered on 3 ports — :80, :31337, :443, across 2 malware families.
182.255.91.104:80 · Cobalt Strike
Last confirmed (12 days ago)
Beacon configuration
182.255.91.104:31337 · Sliver
Last confirmed (12 days ago)
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.
182.255.91.104:443 · Sliver
Last confirmed (12 days ago)
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.
Observation history
Observed on 5 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 · 554 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.
Showing 24 of 554. The rest are reachable from any of them.
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.
Showing 24 of 108. The rest are reachable from any of them.
Neighbourhood · 182.255.91.0/24 · 1 host
1 other confirmed host in the same /24. Adjacent addresses under one operator are a different signal from a shared certificate — they suggest a block, not a build.
Pivots & lookups
Listed in error?
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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.