ABUSE.MOM
THREAT REPORT

IP Threat Report
51.178.53.190

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-02 00:00:22
First seen: 2026-08-07 02:22:02
Last seen: 2026-08-30 00:57:41
205

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 205/100. Total malicious requests observed: 296.

BURSTDANGER_PATHRATIO_404REFERERUA_CHANGED
01

Geolocation & Classification

IP Address
51.178.53.190
Type
Hosting
Country
🇫🇷 France
City
Strasbourg
ISP
OVH SAS
Organization
OVH
Autonomous System
AS16276 OVH SAS
Hit Count
296
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 15/10sAbnormally fast request rate — automated scanning+35
Burst 9/2sAbnormally fast request rate — automated scanning+35
Danger medium hits: 1Medium-risk: admin panels, config files+10
Danger medium hits: 2Medium-risk: admin panels, config files+20
Danger strong hits: 12High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Foreign refererReferer from unrelated external domain+10
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 310
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

2026-08-07 02:22:02
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst 15/10s (+35), Burst 9/2s (+35)
2026-08-30 00:57:41
Last malicious request observed
Total score reached: 205/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

OVH SAS
AS16276 · 🇫🇷 France
06

Recommendations

Actions taken & recommended

  • IP 51.178.53.190 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 51.178.53.190: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Traffic Flood Defense

IP 51.178.53.190 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 User-Agent Anomaly Defense

IP 51.178.53.190 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
bl.blocklist.de
✓ Clean
zen.spamhaus.org
✓ Clean
cbl.abuseat.org
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
b.barracudacentral.org
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

51.178.53.190 has been assigned a threat score of 205/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

Threat intelligence analysis has linked 51.178.53.190 to malicious activity originating from Strasbourg, France, operating on the network of OVH SAS. The address has been under observation since its initial detection. Our sensors captured 296 malicious requests from this address across a 22-day span, reflecting a sustained attack cadence of ~13.5 requests per 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 combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. France currently accounts for 136 blocked IPs in our database, making it a significant source of malicious traffic. A score of 205/100 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 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: AS16276

15.204.114.225 (263)213.32.71.245 (260)15.204.114.175 (253)15.204.114.172 (238)147.135.76.247 (223)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.

💡 Remote Code Execution (RCE)

RCE vulnerabilities allow attackers to execute arbitrary code on target servers. These critical flaws often arise from deserialization bugs, template injection, or file upload vulnerabilities, and represent the highest severity class of web application weaknesses.

🔍 Check Any IP Address

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