ABUSE.MOM
THREAT REPORT

IP Threat Report
171.252.163.40

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-28 14:25:00
First seen: 2026-07-21 13:07:42
Last seen: 2026-07-26 04:07:06
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 229.

BURST
01

Geolocation & Classification

IP Address
171.252.163.40
Type
Residential
Country
🇻🇳 Vietnam
City
Hải Dương
ISP
Viettel Corporation
Organization
VIETEL
Autonomous System
AS7552 Viettel Group
Hit Count
229
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 12/2sAbnormally fast request rate — automated scanning+35
Burst 31/10sAbnormally fast request rate — automated scanning+35
Σ = 70
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

2026-07-21 13:07:42
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 12/2s (+35), Burst 31/10s (+35)
2026-07-26 04:07:06
Last malicious request observed
Total score reached: 70/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Viettel Corporation
AS7552 · 🇻🇳 Vietnam
06

Recommendations

Actions taken & recommended

  • IP 171.252.163.40 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

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 171.252.163.40.

09

Blacklist Status (DNSBL)

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

✓ Clean
b.barracudacentral.org
✓ Clean
bl.blocklist.de

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

10

Threat Analysis

171.252.163.40 has been assigned a threat score of 70/100 (High). This classifies it as a high-severity threat. Proactive blocking is recommended for sensitive infrastructure.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 171.252.163.40 to malicious activity originating from Hải Dương, Vietnam, operating on the network of Viettel Corporation. The address has been under observation since its initial detection. Over a period of 4 days, this IP generated 229 malicious requests, averaging approximately 57.3 requests per day. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. Rate-based attacks from this IP aim to overwhelm server resources through high-volume request flooding. With 108 flagged addresses, Vietnam represents a significant presence in our threat database. At 70/100, this IP warrants immediate defensive action.

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

103.216.118.66 (273)163.223.211.27 (253)103.61.123.221 (235)14.225.32.188 (235)210.2.86.189 (235)View all →

🏢 Same network: AS7552

171.231.75.231 (130)171.231.178.158 (130)27.69.139.241 (95)171.251.239.184 (95)115.76.51.143 (95)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.

💡 DNS Sinkholing for Malware Defense

DNS sinkholing redirects queries for known malicious domains to controlled IP addresses. This technique blocks malware communication, prevents data exfiltration, and identifies compromised internal hosts attempting to contact command-and-control servers.

🔍 Check Any IP Address

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