IP Threat Report
103.61.123.221
ABUSE.MOM — BEHAVE OR GET EXPOSED
Geolocation & Classification
Detection Signatures
| Signature | Description | Points | Severity |
|---|---|---|---|
| UA bot: Go-http-client | Known bot/crawler User-Agent detected | +40 | |
| Danger strong hits: 10 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| 404 ratio 40-60% | Majority of requests returned 404 — enumeration | +15 | |
| Burst: 6 req / 2s | Abnormally fast request rate — automated scanning | +35 | |
| Burst: 10 req / 10s | Abnormally fast request rate — automated scanning | +35 | |
| Foreign referer seen | Referer from unrelated external domain | +10 | |
| Danger strong hits: 6 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| 404 ratio >= 60% | Majority of requests returned 404 — enumeration | +25 | |
| Probe pattern 302->404 same path | Behavioral anomaly detected by automated analysis | +20 | |
| Danger strong hits: 14 | High-risk paths: shells, RCE vectors, exploits | +100 | |
| Burst: 14 req / 10s | Abnormally fast request rate — automated scanning | +35 |
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 103.61.123.221 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
🤖 User-Agent Anomaly Defense
IP 103.61.123.221 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.
🔎 Path Enumeration Protection
Block scanning from 103.61.123.221: 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 103.61.123.221.
Open Ports & Services
Network reconnaissance data from Shodan. Open ports may indicate running services, misconfigurations, or potential attack surfaces.
| Port | Service | Risk | Description |
|---|---|---|---|
| 21 | FTP | Medium | File Transfer Protocol — often targeted for anonymous login attacks |
| 22 | SSH | Low | Secure Shell — common brute force target for remote access |
| 53 | DNS | Low | DNS server — potential for DNS amplification attacks |
| 80 | HTTP | Low | HTTP web server — standard web traffic |
| 111 | Unknown | Low | Service on port 111 |
| 143 | IMAP | Low | Service on port 143 |
| 443 | HTTPS | Low | HTTPS web server — encrypted web traffic |
| 587 | Unknown | Low | Service on port 587 |
| 993 | IMAPS | Low | Service on port 993 |
| 995 | POP3S | Low | Service on port 995 |
| 1080 | Unknown | Low | Service on port 1080 |
| 2031 | Unknown | Low | Service on port 2031 |
| 2082 | Unknown | Low | Service on port 2082 |
| 2083 | Unknown | Low | Service on port 2083 |
| 2086 | Unknown | Low | Service on port 2086 |
| 2087 | Unknown | Low | Service on port 2087 |
| 3306 | MySQL | High | MySQL database — should never be exposed to the internet |
| 4190 | Unknown | Low | Service on port 4190 |
| 8080 | HTTP-Alt | Low | HTTP alternative port — often used for admin panels or proxies |
⚠️ 2 high-risk ports detected on 103.61.123.221. These services should not be publicly accessible without strict firewall rules.
| CVE ID | Link |
|---|---|
| CVE-2019-6109 | NVD → |
| CVE-2019-6110 | NVD → |
| CVE-2020-7070 | NVD → |
| CVE-2024-42516 | NVD → |
| CVE-2021-41617 | NVD → |
| CVE-2025-32728 | NVD → |
| CVE-2018-15473 | NVD → |
| CVE-2019-11048 | NVD → |
| CVE-2019-1559 | NVD → |
| CVE-2024-3566 | NVD → |
| CVE-2025-49812 | NVD → |
| CVE-2025-53020 | NVD → |
| CVE-2020-7066 | NVD → |
| CVE-2024-0727 | NVD → |
| CVE-2017-3738 | NVD → |
| CVE-2023-51385 | NVD → |
| CVE-2023-2650 | NVD → |
| CVE-2018-0732 | NVD → |
| CVE-2025-58098 | NVD → |
| CVE-2023-0464 | NVD → |
| CVE-2012-4360 | NVD → |
| CVE-2011-1176 | NVD → |
| CVE-2017-3737 | NVD → |
| CVE-2023-38408 | NVD → |
| CVE-2019-1563 | NVD → |
🔴 This host has 125 known CVEs associated with its exposed services. This volume strongly suggests severely outdated software. Review each CVE in the NVD database.
Data source: Shodan InternetDB. Scanned independently of abuse.mom.
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
103.61.123.221 has been assigned a threat score of 235/100 (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
103.61.123.221 is registered in Thanh Liệt, Vietnam, operating on the network of H2 VIET NAM TECHNOLOGY SOLUTIONS COMPANY LIMITED. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. The address has been active for 3 days in our monitoring system, producing 9 flagged requests at a rate of ~3/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 107 malicious IPs originating from Vietnam, positioning it as a significant contributor to global threat activity. At 235/100, 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
💡 User-Agent Analysis Techniques
Analyzing User-Agent strings reveals automated tools masquerading as legitimate browsers. Inconsistencies between claimed browser capabilities and actual behavior, impossible version combinations, and known scanner signatures help identify malicious clients.
💡 TLS Fingerprinting (JA3/JA4)
TLS fingerprinting creates unique identifiers based on how clients negotiate encrypted connections. The JA3 and JA4 methods generate hashes from TLS ClientHello parameters, enabling identification of specific tools and malware regardless of IP address changes.