ABUSE.MOM
THREAT REPORT

IP Threat Report
103.195.238.51

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 02:25:39
First seen: 2026-08-06 19:49:43
Last seen: 2026-08-09 04:17:21
160

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 160/100. Total malicious requests observed: 104.

BURSTDANGER_PATHRATIO_404REFERER
01

Geolocation & Classification

IP Address
103.195.238.51
Type
Residential
Country
🇻🇳 Vietnam
City
Quận Bình Thạnh
ISP
DULIEUAZ
Organization
AZ Viet NAM Communications Technology Company Limited
Autonomous System
AS151858 INTERDIGI JOINT STOCK COMPANY
Hit Count
104
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst 10/10sAbnormally fast request rate — automated scanning+35
Burst 13/10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 22High-risk paths: shells, RCE vectors, exploits+100
Foreign refererReferer from unrelated external domain+10
Σ = 195
03

Observed Activity

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

[redacted]
GET
/
200
[redacted]
GET
/page
200
Requests shown: 2 · HTTP 404: 0 · Dangerous patterns: 0

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

04

Timeline

2026-08-06 19:49:43
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst 10/10s (+35), Burst 13/10s (+35)
2026-08-09 04:17:21
Last malicious request observed
Total score reached: 160/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

DULIEUAZ
AS151858 · 🇻🇳 Vietnam
06

Recommendations

Actions taken & recommended

  • IP 103.195.238.51 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 103.195.238.51 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 103.195.238.51.

09

Blacklist Status (DNSBL)

This IP was checked against major DNS-based blacklists used by mail servers and firewalls worldwide.

✓ Clean
cbl.abuseat.org
✓ Clean
bl.blocklist.de
✓ Clean
zen.spamhaus.org
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
b.barracudacentral.org
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com

Checked: Spamhaus, SpamCop, Barracuda, SORBS, CBL, UCEProtect. Results may change over time.

10

Threat Analysis

103.195.238.51 has been assigned a threat score of 160/100 (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:

Path EnumerationRequest Flooding

📊 Threat Analysis

Our monitoring infrastructure has identified 103.195.238.51, geolocated to Quận Bình Thạnh, Vietnam, operating on the network of DULIEUAZ, as a source of suspicious network activity. Over a period of 2 days, this IP generated 104 malicious requests, averaging approximately 52 requests per day. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. Vietnam currently accounts for 124 blocked IPs in our database, making it a significant source of malicious traffic. At 160/100, 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.

11

Related Threats

🇻🇳 Top threats from Vietnam

180.93.0.112 (280)103.216.118.66 (273)163.223.211.27 (253)117.4.247.33 (240)103.61.123.221 (235)View all →

🏢 Same network: AS151858

160.187.147.141 (180)103.75.183.142 (170)103.195.239.2 (160)View all →
12

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.

💡 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.

🔍 Check Any IP Address

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