Maximum Danger
IP 101.36.121.88 is a high-risk address originating from Hong Kong that has been linked to 208 reported incidents of malicious activity, predominantly SSH brute-force attacks targeting exposed servers, placing it squarely among the most threatening IPs observable in current threat intelligence feeds.
Automated honeypot sensors across 20 distinct detection points logged the majority of these reports during September 2025, with the network routed through AS62610 under the operator ZEN-DPS. The reported activity breaks down primarily into Hacking (16 reports) and SSH-specific (4 reports) categories, indicating a focused intrusion campaign rather than opportunistic scanning. Despite the substantial report volume, the activity frequency metric of 0/10 suggests that while the IP has a documented history of hostile behavior, recent sustained attempts may have decreased in the current period. Hong Kong-based infrastructure is frequently leveraged by threat actors due to the region's connectivity to major Asian internet exchange points, making it a common origin for both legitimate and malicious traffic traversing the Pacific rim.
The dominant threat vector observed against honeypot sensors is SSH brute-forcing, a technique where attackers systematically attempt default, weak or commonly reused credentials to gain shell access to Linux servers and network devices. With a threat level of 10/10, any exposed SSH service directly accessible from the internet faces a credible and active threat of unauthorized access. Beyond simple credential guessing, successful compromise through SSH can grant attackers persistent access to internal networks, enabling data exfiltration, cryptocurrency mining deployment, or use of the compromised host as a pivot point for further attacks.
Administrators should immediately block or rate-limit traffic from this IP at the firewall or network edge device, particularly for destination port 22. Hardening measures should include enforcing key-based authentication exclusively, disabling root login over SSH, moving the SSH service to a non-standard port, and implementing an automated blocking tool such as fail2ban to dynamically ban IPs after repeated authentication failures. Continuous monitoring of authentication logs for source IP 101.36.121.88 is recommended, and any successful connections should be treated as a potential breach requiring immediate incident response.
SG