ABUSE.MOM
THREAT REPORT

IP Threat Report
51.158.249.8

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-28 17:37:26
First seen: 2026-07-19 09:51:50
Last seen: 2026-07-26 04:04:28
135

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 135/100. Total malicious requests observed: 245.

BOT_UABURSTUA_CHANGED
01

Geolocation & Classification

IP Address
51.158.249.8
Type
Hosting
Country
🇳🇱 Netherlands
City
Haarlem
ISP
Scaleway SAS
Organization
Scaleway
Autonomous System
AS12876 Scaleway SAS
Hit Count
245
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 23/10sAbnormally fast request rate — automated scanning+35
Burst 23/2sAbnormally 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 09:51:50
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 23/10s (+35), Burst 23/2s (+35), UA bot: python (+40)
2026-07-26 04:04:28
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 51.158.249.8 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 51.158.249.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 51.158.249.8.

🤖 Bot Detection

Address UA spoofing from 51.158.249.8: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

07

Neighbors in 51.158.249.0/24

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
psbl.surriel.com
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
dnsbl.dronebl.org

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

10

Threat Analysis

51.158.249.8 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

IP address 51.158.249.8 has been traced to Haarlem, Netherlands, operating on the network of Scaleway SAS. Our threat detection systems have flagged this address based on observed malicious behavior patterns. The address has been active for 6 days in our monitoring system, producing 245 flagged requests at a rate of ~40.8/day. This address belongs to a datacenter or cloud hosting provider. Hosting IPs are frequently leveraged by threat actors who rent cheap VPS instances specifically for conducting attacks. The dual attack vectors of Request Flooding combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Our records show 34 malicious IPs originating from Netherlands, positioning it as a notable contributor to global threat activity. 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

51.158.248.220 (160)51.158.248.241 (160)51.158.248.192 (135)51.158.248.210 (135)51.158.203.239 (135)View all →

🏢 Same network: AS12876

62.210.198.105 (160)51.159.108.223 (160)51.158.248.220 (160)51.159.107.12 (160)62.210.198.122 (160)View all →
12

Security Intelligence

💡 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.

💡 Patch Management Urgency

The window between vulnerability disclosure and exploitation continues to shrink. Critical CVEs are now exploited within hours of publication. Automated patch management, virtual patching through WAFs, and rapid deployment pipelines are essential for timely remediation.

🔍 Check Any IP Address

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