IP Threat Report
4.194.131.131
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 | |
| Burst 15/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 16/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 50/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 52/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 53/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 57/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 15 req / 2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 16 req / 2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 50 req / 10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 51 req / 10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 53 req / 10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 54 req / 10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 55 req / 10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 56 req / 10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 57 req / 10s | Abnormally fast request rate — automated scanning | +35 | |
| Danger medium hits: 116 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 117 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 200 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 202 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 204 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 206 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 207 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 242 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 272 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 278 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 298 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 306 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 336 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 417 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 424 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 448 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 451 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 504 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 554 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 56 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 633 | Medium-risk: admin panels, config files | +60 | |
| Danger strong hits: 104 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 105 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 116 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 124 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 164 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 3 | High-risk paths: shells, RCE vectors, exploits | +75 | |
| Danger strong hits: 30 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 40 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 46 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 51 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 52 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 53 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 57 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 58 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 63 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 64 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 69 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 75 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 78 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 79 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 84 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 87 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 90 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Probe 302→404 | Behavioral anomaly detected by automated analysis | +20 | |
| Probe pattern 302->404 same path | Behavioral anomaly detected by automated analysis | +20 | |
| UA suspicious | Behavioral anomaly detected by automated analysis | +15 | |
| UA suspicious (short/empty) | 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
Recommendations
Actions taken & recommended
- IP 4.194.131.131 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 4.194.131.131 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.
🌊 Flood / DDoS Mitigation
Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 4.194.131.131.
🤖 Bot Detection
Address UA spoofing from 4.194.131.131: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.
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
4.194.131.131 has been assigned a threat score of 280/100 (Critical). A score this high marks a critical threat actor. This address has demonstrated persistent, aggressive malicious behavior across multiple detection vectors.
The following attack categories were identified:
📊 Threat Analysis
Threat intelligence analysis has linked 4.194.131.131 to malicious activity originating from Singapore, Singapore, operating on the network of Microsoft Corporation. The address has been under observation since its initial detection. During its 100-day observation window, we recorded 441 hostile requests from this IP — roughly 4.4 per day on average. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. Our records show 208 malicious IPs originating from Singapore, positioning it as a significant contributor to global threat activity. A score of 280/100 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.
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.
💡 Subdomain Takeover Vulnerabilities
Subdomain takeover occurs when DNS records point to decommissioned services. Attackers claim the abandoned resource and serve content under the trusted domain, enabling cookie theft, phishing, and reputation damage.