ABUSE.MOM
THREAT REPORT

IP Threat Report
31.171.130.100

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:30:08
First seen: 2026-02-23 22:40:35
Last seen: 2026-04-28 00:00:11
255

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 255/100. Total malicious requests observed: 4.

FORM_SPAMUA_CHANGEDDANGER_PATHBURST
01

Geolocation & Classification

IP Address
31.171.130.100
Type
VPN/Proxy
Country
🇬🇧 United Kingdom
City
Slough
ISP
F.N.S. HOLDINGS LIMITED
Organization
NR Cust Expressvpn
Autonomous System
AS206092 F.N.S. HOLDINGS LIMITED
Hit Count
4
02

Detection Signatures

SignatureDescriptionPointsSeverity
Form spam: no_js_checkSpam/malware keywords in request content+0
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger strong hits: 127High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 50Medium-risk: admin panels, config files+60
Burst: 36 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 130 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 83High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 236Medium-risk: admin panels, config files+60
Burst: 34 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 121 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 378High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 970Medium-risk: admin panels, config files+60
Burst: 35 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 124 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 715
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

2026-02-23 22:40:35
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Form spam: no_js_check, UA changed for same IP (+25), Danger strong hits: 127 (+100)
2026-04-28 00:00:11
Last malicious request observed
Total score reached: 255/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

F.N.S. HOLDINGS LIMITED
AS206092 · 🇬🇧 United Kingdom
06

Recommendations

Actions taken & recommended

  • IP 31.171.130.100 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 31.171.130.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

📧 Spam Protection

Enable CAPTCHA on all public forms. Add honeypot fields. Rate-limit submissions to 3 per minute per IP. Deploy Akismet or CleanTalk.

🤖 Bot Detection

Address UA spoofing from 31.171.130.100: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

🌊 Traffic Flood Defense

IP 31.171.130.100 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 31.171.130.0/24

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.

⛔ LISTED
Spamhaus ZEN

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

10

Threat Analysis

31.171.130.100 has been assigned a threat score of 255/100 (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:

User-Agent AnomalyRequest Flooding

📊 Threat Analysis

Our monitoring infrastructure has identified 31.171.130.100, geolocated to Slough, United Kingdom, operating on the network of F.N.S. HOLDINGS LIMITED, as a source of suspicious network activity. Our sensors captured 4 malicious requests from this address across a 63-day span, reflecting a sustained attack cadence of ~0.1 requests per day. This IP is identified as a VPN or proxy endpoint, commonly used to mask the true origin of attack traffic and bypass geographic or reputation-based blocking. Two attack patterns were identified (User-Agent Anomaly and Request Flooding), suggesting a semi-automated campaign that targets multiple vulnerabilities. Our records show 104 malicious IPs originating from United Kingdom, positioning it as a significant contributor to global threat activity. A score of 255/100 places this address in the top tier of severity. Block and investigate any historical connections.

This IP is associated with a VPN or proxy service. Attackers frequently route their traffic through anonymizing services to obscure their true location. This makes attribution more challenging but the malicious behavior patterns remain detectable.

11

Related Threats

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🏢 Same network: AS206092

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12

Security Intelligence

💡 SQL Injection Campaigns

SQL injection remains one of the most common web attack vectors. Attackers inject malicious SQL code through input fields to extract database contents, modify data, or gain administrative access. Automated scanners test for SQLi vulnerabilities at massive scale.

💡 Threat Intelligence Sharing Frameworks

Standards like STIX/TAXII, MISP, and OpenIOC enable automated sharing of threat intelligence between organizations. Collective defense through shared indicators, tactics, and procedures strengthens the entire security community against common threats.

🔍 Check Any IP Address

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