Public Mosaic C2 indicators
confirmed host

85.209.2.41

Quasarremote-access trojan controller · :443

First seen and last confirmed 2026-09-23. No longer listed. On AS205090.

archived last confirmed feed checked TLP:CLEAR

Summary

First seen by the scanner2026-09-23
In this archive since2026-09-23
Look up elsewhereVirusTotal · Shodan · Censys
About this listingWhat a listing means · Is this your address?

Observation history

First seen and last confirmed by the scanner on 2026-09-23 UTC, and listed that day.

  1. listed
  2. :443

2026-08-292026-09-23

  • 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
  • 2026-09-23 (1 day)

85.209.2.41:443 · Quasar

no longer listed Last confirmed

first seen2026-09-23 09:36 UTC
serviceip-port · tcp · HTTPS
observed hostamd.com
networkAS205090 · FIRST SERVER
confidence98 / 100

Deploy

No listener here is listed, so there are no rules. The queries below search past traffic: run them once, not as a standing alert.

Each query searches the last 30 days of your logs for connections to these listeners. Queries hold only addresses, ports and file hashes.

Microsoft Defender XDR (KQL)
DeviceNetworkEvents
| where Timestamp > ago(30d)
| where (RemoteIP == "85.209.2.41" and RemotePort in (443))
Microsoft Sentinel (KQL)
CommonSecurityLog
| where TimeGenerated > ago(30d)
| where (DestinationIP == "85.209.2.41" and DestinationPort in (443))
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="85.209.2.41" (All_Traffic.dest_port=443)))
    by All_Traffic.src_ip All_Traffic.dest_ip All_Traffic.dest_port
Elastic (EQL)
network where
  (destination.ip == "85.209.2.41" and destination.port in (443))

Cite this record

Plain text, for a ticket or a report
Address 85.209.2.41 Family Quasar (remote-access trojan controller) Ports :443 Status archived (feed checked 2026-10-30 18:37 UTC) First seen 2026-09-23 Last confirmed 2026-09-23 Record https://publicmosaic.com/ip/85.209.2.41 Source Public Mosaic, TLP:CLEAR