IP Threat Report
158.158.37.2
ABUSE.MOM — BEHAVE OR GET EXPOSED
Geolocation & Classification
Detection Signatures
| Signature | Description | Points | Severity |
|---|---|---|---|
| 404 ratio 40-60% | Majority of requests returned 404 — enumeration | +15 | |
| 404 ratio >= 60% | Majority of requests returned 404 — enumeration | +25 | |
| Burst 106/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 111/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 124/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 130/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 134/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 158/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 32/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 33/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 34/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 36/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 37/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 38/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 39/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 45/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 65/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 85/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 92/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 97/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 99/10s | Abnormally fast request rate — automated scanning | +35 | |
| Danger medium hits: 128 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 149 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 272 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 293 | Medium-risk: admin panels, config files | +60 | |
| Danger strong hits: 140 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 164 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 246 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 4 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 82 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 92 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Probe 302→404 | Behavioral anomaly detected by automated analysis | +20 | |
| UA suspicious | Behavioral anomaly detected by automated analysis | +15 |
Observed Activity
Reconstructed HTTP requests from server access logs. Target domains redacted for security.
* Typical request patterns for detected signatures. Actual target domains are redacted.
Timeline
Network Provider
We have detected 1852 malicious IPs from this autonomous system.
Recommendations
Actions taken & recommended
- IP 158.158.37.2 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 158.158.37.2: 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 158.158.37.2.
🤖 User-Agent Anomaly Defense
IP 158.158.37.2 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.
Blacklist Status (DNSBL)
This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.
Checked: Spamhaus, SpamCop, Barracuda, SORBS, CBL, UCEProtect. Results may change over time.
Threat Analysis
158.158.37.2 has been assigned a threat score of 280/100 (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:
📊 Threat Analysis
Our monitoring infrastructure has identified 158.158.37.2, geolocated to Madrid, Spain, operating on the network of Microsoft Corporation, as a source of suspicious network activity. Our sensors captured 904 malicious requests from this address across a 8-day span, reflecting a sustained attack cadence of ~113 requests per day. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. With 3 different attack patterns detected, this IP exhibits behavior characteristic of advanced automated scanning frameworks. Our records show 804 malicious IPs originating from Spain, positioning it as a major contributor to global threat activity. At 280/100, this is an extremely high-risk address. All traffic should be considered hostile.
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.
Related Threats
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.
💡 WebSocket Security Considerations
WebSocket connections bypass traditional HTTP security controls, creating opportunities for cross-site WebSocket hijacking, denial of service, and data injection. Proper origin validation, authentication, and message rate limiting are essential for secure WebSocket implementations.