IP Threat Report
45.138.12.23
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 101/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 108/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 116/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 117/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 117/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 118/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 118/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 119/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 119/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 120/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 120/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 122/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 123/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 123/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 124/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 124/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 128/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 132/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 200/10s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 200/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 86/2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst 96/2s | Abnormally fast request rate — automated scanning | +35 | |
| Danger medium hits: 20 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 22 | Medium-risk: admin panels, config files | +60 | |
| Danger medium hits: 5 | Medium-risk: admin panels, config files | +50 | |
| Danger medium hits: 6 | Medium-risk: admin panels, config files | +60 | |
| Danger strong hits: 125 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 71 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 72 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 73 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 74 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 75 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Danger strong hits: 76 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Foreign referer | Referer from unrelated external domain | +10 | |
| POST seen | Behavioral anomaly detected by automated analysis | +8 | |
| UA changed | Multiple User-Agents — bot rotation technique | +25 |
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 40 malicious IPs from this autonomous system.
Recommendations
Actions taken & recommended
- IP 45.138.12.23 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 45.138.12.0/24
- 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 45.138.12.23 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 45.138.12.23.
🤖 User-Agent Anomaly Defense
IP 45.138.12.23 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.
Neighbors in 45.138.12.0/24
Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.
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
45.138.12.23 has been assigned a threat score of 280/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.
The following attack categories were identified:
📊 Threat Analysis
45.138.12.23 is registered in Newport, United Kingdom, operating on the network of Rolandas Uscila. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. Over a period of 30 days, this IP generated 7,433 malicious requests, averaging approximately 247.8 requests per day. The address is classified as residential, meaning it likely belongs to an end-user ISP connection. Malicious activity from residential IPs typically indicates device compromise or botnet membership. With 3 different attack patterns detected, this IP exhibits behavior characteristic of advanced automated scanning frameworks. Our records show 3,198 malicious IPs originating from United Kingdom, 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
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💡 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.
💡 Automated Incident Response
Automated response systems can block threats in milliseconds, far faster than human analysts. However, automation requires careful safeguards — rate limits on blocking actions, automatic expiration, and human review queues prevent automated systems from causing self-inflicted outages.