Maximum Danger
IP 89.203.249.141 is a critical-risk address originating from the Czech Republic that has been linked to 449 abuse reports, predominantly involving SSH brute-force intrusion attempts. Operating through AS25512 under CD-Telematika a.s., this IP was flagged repeatedly by automated honeypot sensors throughout October 2025, earning a maximum threat level score of 10 out of 10. Despite the overwhelming volume of reports, the detection carries a moderate confidence rating of 66 percent, indicating that while malicious intent is strongly evidenced, some report classification ambiguity exists.
Analysis of the submitted reports reveals a focused attack profile: 16 reports classified the activity as general hacking, while 4 specifically identified SSH brute-force attempts. These detections originated from 20 distinct automated honeypot sensors over a compressed timeframe in October 2025, suggesting concentrated, automated scanning behaviour rather than sporadic manual probing. The Czech network infrastructure of CD-Telematika a.s. appears to be the origination point for this sustained hostile activity targeting exposed SSH services.
SSH brute-force attacks represent a persistent threat to any server with exposed port 22 and password-based authentication enabled. Attackers deploy automated tooling to systematically guess credentials against SSH daemons, exploiting weak or default passwords to gain unauthorized server access. Once inside, threat actors can exfiltrate data, deploy cryptominers, establish persistent backdoors, or pivot deeper into the target network. The scale of reports against IP 89.203.249.141 indicates a deliberate, high-volume campaign rather than opportunistic probing.
Site operators should immediately block this IP at the firewall level and monitor logs for any successful authentication attempts. Implementing fail2ban or similar intrusion-prevention tools will automatically throttle repeated SSH login failures from this and similar addresses. Transitioning to key-based authentication, disabling root login, and moving SSH to a non-standard port significantly reduces the attack surface. Keeping systems fully patched and maintaining real-time network monitoring ensures early detection of any further attempts from this or neighbouring hostile sources.
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