ABUSE.MOM
THREAT REPORT

IP Threat Report
51.158.248.207

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-28 21:14:31
First seen: 2026-07-19 10:00:33
Last seen: 2026-07-26 04:05:57
135

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 135/100. Total malicious requests observed: 223.

BOT_UABURSTUA_CHANGED
01

Geolocation & Classification

IP Address
51.158.248.207
Type
Hosting
Country
🇳🇱 Netherlands
City
Haarlem
ISP
Scaleway SAS
Organization
Scaleway
Autonomous System
AS12876 Scaleway SAS
Hit Count
223
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 22/2sAbnormally fast request rate — automated scanning+35
Burst 25/10sAbnormally fast request rate — automated scanning+35
UA bot: pythonKnown bot/crawler User-Agent detected+40
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 135
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
[redacted]
GET
/page
200
Requests shown: 2 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-07-19 10:00:33
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 22/2s (+35), Burst 25/10s (+35), UA bot: python (+40)
2026-07-26 04:05:57
Last malicious request observed
Total score reached: 135/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Scaleway SAS
AS12876 · 🇳🇱 Netherlands
06

Recommendations

Actions taken & recommended

  • IP 51.158.248.207 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Other malicious IPs detected in the same /24 subnet — consider blocking 51.158.248.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🌊 Traffic Flood Defense

IP 51.158.248.207 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 Bot Detection

Address UA spoofing from 51.158.248.207: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

07

Neighbors in 51.158.248.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
bl.blocklist.de
✓ Clean
cbl.abuseat.org
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com
✓ Clean
dnsbl.dronebl.org

Checked: Spamhaus, SpamCop, Barracuda, SORBS, CBL, UCEProtect. Results may change over time.

10

Threat Analysis

51.158.248.207 has been assigned a threat score of 135/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

Threat intelligence analysis has linked 51.158.248.207 to malicious activity originating from Haarlem, Netherlands, operating on the network of Scaleway SAS. The address has been under observation since its initial detection. During its 6-day observation window, we recorded 223 hostile requests from this IP — roughly 37.2 per day on average. Operating from datacenter infrastructure, this IP is typical of addresses used in organized attack operations. Cloud and VPS providers are commonly exploited as launching platforms for automated scanning. Two attack patterns were identified (Request Flooding and User-Agent Anomaly), suggesting a semi-automated campaign that targets multiple vulnerabilities. Netherlands currently accounts for 122 blocked IPs in our database, making it a significant source of malicious traffic. A score of 135/100 places this address in the top tier of severity. Block and investigate any historical connections.

This IP belongs to a hosting or data center provider. Malicious traffic from hosting infrastructure often originates from compromised VPS instances, rented servers used for scanning campaigns, or abused free-tier cloud accounts. Hosting providers typically respond to abuse reports within 24-72 hours.

11

Related Threats

🇳🇱 Top threats from Netherlands

91.92.43.144 (358)91.92.43.186 (358)91.92.43.190 (358)91.92.43.157 (358)91.92.43.153 (358)View all →

🏢 Same network: AS12876

51.158.248.220 (160)51.158.248.241 (160)51.158.248.192 (135)51.158.248.210 (135)51.158.248.247 (135)View all →
12

Security Intelligence

💡 IPv6 Scanning Challenges

The vast IPv6 address space makes traditional sequential scanning impractical. However, attackers use DNS records, certificate transparency logs, and predictable address patterns to identify active IPv6 hosts, adapting their techniques to the expanded address space.

💡 DDoS Mitigation Approaches

Distributed denial of service attacks overwhelm infrastructure with traffic volume. Effective mitigation combines always-on traffic scrubbing, anycast network distribution, rate limiting, and the ability to quickly scale absorption capacity during attacks.

🔍 Check Any IP Address

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