68.83.181.181📋 Copy

# IP Intelligence Briefing: 68.83.181.181

Classification: High Risk (Score: 80/100)

Date: 2026-06-18

Intel Analyst: SOC Operations

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## Executive Summary

IP address 68.83.181.181 is classified as High Risk with an overall reputation score of 80. The address is assigned to Comcast Cable Communications, Inc. (ASN 7922) within the NJ-NORTH-9 network block (68.83.176.0/20). Despite residential infrastructure classification, the IP exhibits concerning characteristics including DNS blacklist presence and geographic validation anomalies.

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## Infrastructure Profile

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## Threat Assessment

Risk Indicators

• Risk Score: 80 (High Risk)
• Operator Score: 0.2609 (Basic)
• DNS Blacklist Status: Listed on 4 of 8 total DNSBLs
• Known Attacker Status: Not confirmed
• Spam Source Status: Not confirmed
• Tor Exit Node: No

Technical Services

• Open Ports: TCP/22 (SSH)
• SSH Banner: SSH-2.0-OpenSSH_8.1
• HTTP Service: None detected
• TLS Certificates: None present

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## Geographic Anomalies

The IP exhibits significant geolocation inconsistencies:

• Claimed Location: Philadelphia, PA, US
• Inferred Distance: 6,089 km from probe origin
• RTT Violation: 31ms measured vs. minimum possible 121.8ms for claimed distance
• Validation Status: Failed (geoPlausible: false)
• Probe Count: 5 successful probes

This RTT violation indicates potential spoofing, misconfiguration, or the IP is not physically located in the reported region.

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## Neighborhood Analysis

Subnet: 68.83.181.0/24

Abuse Density: 1 (Elevated)

Classification: Mostly Clean

Inherited Risk: 2

Threat Siblings: 1 identified

Total Active Siblings: 0

The subnet shows minimal neighboring threat activity, with only one threat-related sibling IP identified. The local abuse density is low, suggesting this IP's risk is isolated rather than part of a broader subnet compromise.

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## Historical Observations (19 Total)

Recent activity timeline:

• 2026-06-18 17:26:56: Port scan activity detected; SSH version 8.1
• 2026-06-18 16:52:16: RTT validation failure; 31ms vs. 121.8ms minimum expected
• 2026-06-18 16:51:21: DNSBL listing activity (4 of 8 lists)
• 2026-06-18 16:51:15: Residential infrastructure classification confirmed

Observation Patterns:

• Consistent SSH service exposure
• Persistent RTT/geolocation anomalies
• DNSBL listing activity with high severity classification

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## Entity Relationships

DNS Associations:

• Primary PTR: c-68-83-181-181.hsd1.pa.comcast.net
• Domain: comcast.net
• Forward Resolution: Confirmed (1 hostname)

Network Relationships:

• Multiple associations to NJ-NORTH-9 network block
• 23 total relationships tracked

Notable Anomalies:

• DNS queries failed to 192.168.2.108#53 (timed out)
• No certificate matches or campaign correlations identified

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## Recommended Actions

Firewall Rules

• Block: TCP/22 (SSH) - Risk of brute force exploitation
• Monitor: All outbound connections for data exfiltration patterns

WAF Configuration

• Cloudflare WAF: Add to blocklist
• AWS WAF: Implement geo-filtering based on actual RTT patterns
• pfSense: Create block rule for 68.83.181.181/32

SOC Actions

1. Block inbound SSH from this IP at perimeter firewall

2. Monitor for outbound connections from internal hosts to this IP

3. Verify DNSBL listings and review associated categories

4. Correlate with subnet 68.83.181.0/24 for related threat activity

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## Intelligence Notes

• The IP's residential classification combined with high risk score suggests potential residential proxy abuse
• Geographic validation failures warrant investigation for potential spoofing or compromised endpoint
• DNSBL presence indicates the IP has been reported by threat intelligence feeds
• SSH service exposure on a residential IP increases attack surface for brute force attempts
• No evidence of coordinated campaign activity or infrastructure sharing with known threat actors

Assessment Priority: Medium - Monitor and block, but no immediate threat to critical assets confirmed.

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