83.135.2.49📋 Copy

# IP Intelligence Briefing: 83.135.2.49/32

## Executive Summary

IP address 83.135.2.49 presents a moderate risk profile (40/100) with no active threat indicators. The address is assigned to a dynamic IP pool operated by 1und1.net infrastructure in Germany. No malicious activity, known campaigns, or blacklist listings were identified. Recommended classification: Monitor.

## Ownership and Network Classification

• ASN: 8881
• Organization: VT-ENGI-MNT
• Network: VT-DYNAMICPOOL (83.135.0.0/21)
• RIR: RIPE
• ISP Provider: 1und1.net (Germany)
• Service Classification: Firewalled / No Services
• Registration Status: Dynamic residential IP pool

## Geolocation Data

• Country: Germany (DE)
• Region: Thuringia
• City: Erfurt
• Coordinates: 51.17°N, 10.45°E
• Timezone: Europe/Berlin
• Geo Validation: Inconsistent across sources

## Threat Assessment

• Risk Score: 40 (Moderate)
• Abuse Confidence Score: Not applicable
• Blacklist Count: 0
• DNSBL Listings: 2 (out of 8 total lists scanned)
• Tor Exit Node: No
• Known Attacker: No
• Spam Source: No
• Known Campaigns: None identified
• Campaign Likelihood: None

## Network and Service Analysis

• Open Ports: None detected
• TLS Certificate: None
• HTTP Banner: None
• DNS PTR Hostname: i53870231.versanet.de
• Forward Resolution: Confirmed (1 hostname)
• Domain: versanet.de
• Email Authentication: SPF record present, DMARC not configured

## Neighborhood Analysis

• Subnet: 83.135.2.49/24
• Abuse Density: 0 (Clean)
• Total Siblings: 1
• Active Siblings: 1
• Threat Siblings: 0
• Classification: Clean

## Relationship Graph

The IP associates with:

• Hostname: i53870231.versanet.de (DNS association)
• Network: VT-DYNAMICPOOL (Same Network)
• 8 total relationship entries identified

## Historical Observations

Total observations: 18

• Most Recent: 2026-07-27T03:02:29 UTC
• Ownership Changes: 0
• Threat Persistence Days: 0
• Is Persistently Malicious: False
• Signal Types: Ownership, subnet classification, banners, DNS, geolocation
• Trend: Stable with no escalation

## Recommended Actions

Based on the moderate risk profile, the following defensive measures are recommended:

Firewall Rules

• iptables: `iptables -A INPUT -s 83.135.2.49 -j DROP`
• nftables: `nft add rule inet filter input ip saddr 83.135.2.49 drop`
• nginx: `deny 83.135.2.49;`
• pfSense: `83.135.2.49/32`
• Cloudflare WAF: Block with expression `ip.src eq 83.135.2.49`
• AWS WAF: `Addresses: ["83.135.2.49/32"]`

SOC Analyst Guidance

1. The IP belongs to a legitimate dynamic residential pool with no active malicious indicators.

2. Risk score of 40 is moderate but supported by 2 DNSBL listings.

3. No evidence of association with known threat actors or campaigns.

4. Consider blocking if traffic is observed, but verify with additional context (port, payload, connection patterns).

5. Monitor for any changes in behavior or emergence of new threat indicators.

## Classification

Risk Level: Moderate

Classification: Dynamic Residential IP

Priority: Low-Medium

Action Required: Monitor or Block based on traffic context

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