Identicon of IP address 103.166.77.171

103.166.77.171

IP Risk Score: 91 / 100

This IP is considered potentially malicious and poses a serious security threat. Activity from this IP is consistent with active and malicious behavior. This assessment is backed by strong and consistent detection signals. The IP represents a severe and confirmed security risk. Immediate blocking or mitigation is strongly recommended.

What is this IP address?
IP Address: 103.166.77.171
Country: Vietnam flag Vietnam (VN)
Region Name: Hanoi (HN)
City: Vinhomes Royal City
ISP: BAONAMHOLDINGS
Threat level: 91 / 100
Conf. level: 100 / 100
Properties
ASN: AS135905
AS Name: VIETNAM POSTS AND TELECOMMUNICATIONS GROUP
Timezone: Asia/Bangkok
Status: Critical

Observed Client Profile
  • OS: iOS (100%)
  • Device Type: Mobile (100%)
  • Browser Family: Safari (100%)
  • Rendering Engine: Gecko (100%)
Behavioral Indicators

The IP address shows signs of automated behavior, including a lack of JavaScript support and a server error response. The user-agent appears to be a mobile browser, but the context suggests possible evasion tactics. The absence of RDNS further raises concerns about the legitimacy of the traffic.

The supernet (103.166.0.0/16), which this IP belongs to, exhibits signs of coordinated automation with repetitive low-interaction visits and a mix of user agents, suggesting potential scraping activity. However, the lack of consistent RDNS matches and the presence of multiple distinct user agents across different IPs indicate a level of obfuscation that raises suspicion.

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Server Errors
JavaScript Support
โš ๏ธ No
User-Agent Samples
  • Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1

IP Location

Region: Hanoi, Vietnam

City: Vinhomes Royal City

Local time: 2026-07-05 20:23:46