Severe Risk
IP address 103.48.80.188 is a high-risk address linked to exploited host activity originating from Vietnam, with 202 total abuse reports and a maximum threat-level score of 10/10. The IP was actively reported throughout February 2026 with an activity frequency rating of 8/10, indicating sustained malicious behavior detected by automated honeypot sensors.
The data shows 202 community and honeypot reports tied to this address, with a dominance of exploited host activity — specifically malware and exploit behavior consistent with a compromised system being weaponized by a third party. The 40% confidence score suggests some uncertainty in full attribution, which is common when dealing with hijacked infrastructure. The IP belongs to AS135905, operated by Vietnam Posts and Telecommunications Group, a major national telecommunications provider. This ownership suggests the compromised device is likely a customer endpoint — such as an infected residential router, IoT device or personal computer — rather than server infrastructure under direct threat-actor control.
An exploited host classification means this IP does not represent a deliberate attacker but rather a victim's machine that has been compromised and enrolled in an attack chain, typically for launching further attacks, hosting malicious payloads, or serving as a relay. Despite this distinction, the real-world risk to exposed services is significant because the source appears to be a legitimate consumer connection, making its traffic harder to filter without careful configuration. The sustained report volume and activity frequency indicate the compromise has not been remediated.
Site operators should block 103.48.80.188 at the network perimeter and implement rate-limiting on any exposed services to mitigate brute-force or exploit attempts from this source. Deploying intrusion detection rules and monitoring for malware or exploit signatures will help identify any inbound abuse originating from this address. Proactive tools such as fail2ban can automatically update firewall rules based on repeated hostile activity. If feasible, notifying the hosting provider — Vietnam Posts and Telecommunications Group — facilitates cleanup of the compromised endpoint and reduces the pool of exploited hosts in the global threat landscape.
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