ABUSE.MOM
THREAT REPORT

IP Threat Report
158.173.36.164

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-24 22:57:47
First seen: 2026-09-26 19:45:40
Last seen: 2026-09-27 01:38:20
245

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 245/100. Total malicious requests observed: 8.

BOT_UABURSTDANGER_PATHREFERER
01

Geolocation & Classification

IP Address
158.173.36.164
Type
VPN
Country
🇪🇸 Spain
City
Esplugues de Llobregat
ISP
M247 Europe SRL
Organization
VPN Consumer Barcelona, Spain
Autonomous System
AS9009 M247 Europe SRL
Hit Count
8
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 12/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 19Medium-risk: admin panels, config files+60
Danger strong hits: 13High-risk paths: shells, RCE vectors, exploits+100
Foreign refererReferer from unrelated external domain+10
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
Σ = 245
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

2026-09-26 19:45:40
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 12/10s (+35), Danger medium hits: 19 (+60), Danger strong hits: 13 (+100)
2026-09-27 01:38:20
Last malicious request observed
Total score reached: 245/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

M247 Europe SRL
AS9009 · 🇪🇸 Spain

We have detected 208 malicious IPs from this autonomous system.

View all IPs from AS9009 →
06

Recommendations

Actions taken & recommended

  • IP 158.173.36.164 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 158.173.36.0/24
  • 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 158.173.36.164 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 158.173.36.164: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

07

Neighbors in 158.173.36.0/24

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

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

10

Threat Analysis

158.173.36.164 has been assigned a threat score of 245/100 (Critical). This is a critical-level threat. Systems administrators should treat this IP as hostile and block all inbound connections without exception.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

Our monitoring infrastructure has identified 158.173.36.164, geolocated to Esplugues de Llobregat, Spain, operating on the network of M247 Europe SRL, as a source of suspicious network activity. During its 1-day observation window, we recorded 8 hostile requests from this IP — roughly 8 per day on average. 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 (Request Flooding and User-Agent Anomaly), suggesting a semi-automated campaign that targets multiple vulnerabilities. Our records show 805 malicious IPs originating from Spain, positioning it as a major contributor to global threat activity. A score of 245/100 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

🇪🇸 Top threats from Spain

217.160.136.123 (310)45.67.99.32 (305)212.30.33.72 (305)212.30.33.225 (305)45.67.99.6 (305)View all →

🏢 Same network: AS9009

45.91.20.151 (305)158.173.36.134 (305)135.136.42.150 (305)170.62.245.48 (305)135.136.41.102 (305)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.

💡 Cross-Site Scripting (XSS) Attacks

XSS attacks inject malicious scripts into web pages viewed by other users. Reflected XSS uses crafted URLs, while stored XSS persists in databases. Both types can steal session cookies, redirect users, or deface websites.

🔍 Check Any IP Address

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