ABUSE.MOM
THREAT REPORT

IP Threat Report
169.58.87.143

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 06:41:17
First seen: 2026-10-08 17:07:08
Last seen: 2026-10-25 04:05:18
85

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 85/100. Total malicious requests observed: 852.

BURSTRATIO_404REFERERUA_CHANGED
01

Geolocation & Classification

IP Address
169.58.87.143
Type
Hosting
Country
🇫🇷 France
City
Lauterbourg
ISP
Contabo GmbH
Organization
Contabo GmbH
Autonomous System
AS51167 Contabo GmbH
Hit Count
852
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 5/2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 110
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

2026-10-08 17:07:08
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), 404 ratio >= 60% (+25), Burst 5/2s (+35)
2026-10-25 04:05:18
Last malicious request observed
Total score reached: 85/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Contabo GmbH
AS51167 · 🇫🇷 France

We have detected 788 malicious IPs from this autonomous system.

View all IPs from AS51167 →
06

Recommendations

Actions taken & recommended

  • IP 169.58.87.143 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Path Enumeration Protection

Block scanning from 169.58.87.143: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 169.58.87.143.

🤖 User-Agent Anomaly Defense

IP 169.58.87.143 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

169.58.87.143 has been assigned a threat score of 85/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

IP address 169.58.87.143 has been traced to Lauterbourg, France, operating on the network of Contabo GmbH. Our threat detection systems have flagged this address based on observed malicious behavior patterns. The address has been active for 16 days in our monitoring system, producing 852 flagged requests at a rate of ~53.3/day. The IP is classified as hosting/datacenter infrastructure, commonly associated with rented servers used for automated attack campaigns, botnet command-and-control, or vulnerability scanning at scale. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. Our records show 2,421 malicious IPs originating from France, positioning it as a major contributor to global threat activity. The score of 85/100 indicates a confirmed malicious actor. Network-level blocking is appropriate.

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 France

185.177.72.51 (348)185.177.72.52 (348)185.177.72.29 (348)185.177.72.16 (348)185.177.72.56 (348)View all →

🏢 Same network: AS51167

158.220.88.91 (305)169.58.165.161 (280)169.58.204.147 (280)213.136.72.148 (263)169.58.120.220 (263)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.

💡 Business Email Compromise Tactics

BEC attacks use compromised or spoofed executive email accounts to request fraudulent wire transfers or sensitive data. These attacks cause billions in annual losses and rely on social engineering rather than technical exploitation.

🔍 Check Any IP Address

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