128.1.48.76📋 Copy

# IPDebrief Intelligence Briefing

Target: 128.1.48.76/32

Classification: Moderate Risk (Score: 40)

Date: 2026-07-30

## Executive Summary

IP 128.1.48.76 belongs to UCLOUD infrastructure (ASN 135377) and presents a moderate risk profile with a risk score of 40. The IP is part of the ZL-TYO-UCLOUD-0037 network block (128.1.48.0/24). The address shows no active services, no open ports, and no known campaign associations. Geographic signal inconsistency (Tokyo, Hong Kong, US) warrants additional monitoring.

## Infrastructure Profile

• Organization: UCLOUD
• ASN: 135377
• CIDR Block: 128.1.48.0/24
• Geolocation: Inconsistent signals across Tokyo, Hong Kong, and United States (geoConsensus: false)
• Service Status: Firewalled / No Services Detected
• DNS Resolution: No forward resolution confirmed; 0 PTR hostnames
• Email Authentication: No SPF or DMARC records found

## Threat Indicators

• Abuse Confidence Score: Not determined
• Blacklist Status: 0 abuse feeds; 2 DNSBL listings (of 8 total)
• Known Campaigns: None identified
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No
• Threat Persistence Days: 0 (not persistently malicious)

## Historical Activity

13 signal observations recorded over the monitoring period. Recent activity includes:

• Traceroute attempts with 30 hops; target not reached
• ASN and organization signals from Alienvault OTX
• Geographic data inconsistencies across multiple probes
• Route stability flagged as false; 0 route changes in 30 days

## Network Context

• Subnet Analysis: /24 block (128.1.48.0/24)
• Abuse Density: 0
• Neighbor Risk Distribution: 2 medium-risk neighbors identified

- 128.1.48.152 (Risk: 40)

- 128.1.48.187 (Risk: 40)

• Related Network: ZL-TYO-UCLOUD-0037

## Recommended Actions

Block this IP across all security controls:

• iptables: `iptables -A INPUT -s 128.1.48.76 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 128.1.48.76 drop`
• nginx: `deny 128.1.48.76;`
• pfSense: Add rule for 128.1.48.76/32
• Cloudflare WAF: Block with expression `ip.src eq 128.1.48.76`
• AWS WAF: Add IP address 128.1.48.76/32 to blocklist

## Intelligence Assessment

The IP is associated with a cloud infrastructure provider (UCLOUD) and shows moderate risk characteristics. The presence of DNSBL listings and geographic signal inconsistencies suggest potential reputation concerns. The subnet contains 2 additional medium-risk IPs, indicating potential clustering of elevated-risk addresses. Recommend continued monitoring of the 128.1.48.0/24 block for emerging threat activity.

Priority: Medium

Action: Block pending additional correlation with internal threat intelligence feeds.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.