ABUSE.MOM
THREAT REPORT

IP Threat Report
89.153.88.166

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 12:44:30
First seen: 2026-03-06 16:00:05
Last seen: 2026-03-20 07:00:05
68

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 68/100. Total malicious requests observed: 3.

DANGER_PATHRATIO_404METHOD
01

Geolocation & Classification

IP Address
89.153.88.166
Type
Residential
Country
🇵🇹 Portugal
City
Porto
ISP
NOS Comunicacoes S.A.
Organization
TVCABO-Portugal
Autonomous System
AS2860 NOS COMUNICACOES, S.A.
Hit Count
3
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Danger medium hits: 1Medium-risk: admin panels, config files+10
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
POST requests presentBehavioral anomaly detected by automated analysis+8
Σ = 68
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-03-06 16:00:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 1 (+25), Danger medium hits: 1 (+10), 404 ratio >= 60% (+25)
2026-03-20 07:00:05
Last malicious request observed
Total score reached: 68/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

NOS Comunicacoes S.A.
AS2860 · 🇵🇹 Portugal
06

Recommendations

Actions taken & recommended

  • IP 89.153.88.166 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

🔎 Directory Scan Defense

IP 89.153.88.166 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

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

89.153.88.166 has been assigned a threat score of 68/100 (High). This classifies it as a high-severity threat. Proactive blocking is recommended for sensitive infrastructure.

The following attack categories were identified:

Path Enumeration

📊 Threat Analysis

The address 89.153.88.166 originates from Porto, Portugal, operating on the network of NOS Comunicacoes S.A.. It was identified through automated analysis of incoming network traffic across monitored endpoints. Over a period of 13 days, this IP generated 3 malicious requests, averaging approximately 0.2 requests per day. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. The IP exhibits directory enumeration behavior, systematically requesting non-existent paths to discover hidden files and misconfigured resources. With 57 flagged addresses, Portugal represents a notable presence in our threat database. The score of 68/100 warrants active monitoring and rate-limiting. Full blocking is advisable for sensitive systems.

This IP is classified as residential, suggesting it may belong to a compromised home device, IoT botnet member, or an infected personal computer. Residential IPs involved in attacks often indicate malware infection without the owner's knowledge.

11

Related Threats

🇵🇹 Top threats from Portugal

85.234.64.161 (170)5.157.20.73 (140)5.157.20.26 (140)5.157.20.57 (140)89.114.245.185 (140)View all →

🏢 Same network: AS2860

94.132.98.110 (103)89.153.241.155 (103)95.92.247.25 (103)95.95.173.34 (103)95.92.153.98 (103)View all →
12

Security Intelligence

💡 Credential Stuffing at Scale

Credential stuffing uses stolen username-password pairs from data breaches to attempt logins across many websites. Since users frequently reuse passwords, these automated attacks achieve success rates of 0.1-2%, which translates to thousands of compromised accounts from millions of attempts.

💡 Emerging Threats from AI-Powered Attacks

Artificial intelligence enables more convincing phishing content, faster vulnerability discovery, and adaptive attack strategies that learn from defensive responses. AI-generated social engineering and automated exploit development represent growing threats.

🔍 Check Any IP Address

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