ABUSE.MOM
THREAT REPORT

IP Threat Report
27.71.98.221

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 02:24:16
First seen: 2026-08-17 13:15:18
Last seen: 2026-08-23 02:06:57
70

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 70/100. Total malicious requests observed: 236.

BURST
01

Geolocation & Classification

IP Address
27.71.98.221
Type
Residential
Country
🇻🇳 Vietnam
City
Ho Chi Minh City
ISP
Viettel Group
Organization
VIETTEL
Autonomous System
AS7552 Viettel Group
Hit Count
236
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 10/2sAbnormally fast request rate — automated scanning+35
Burst 25/10sAbnormally 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

2026-08-17 13:15:18
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 10/2s (+35), Burst 25/10s (+35)
2026-08-23 02:06:57
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 Group
AS7552 · 🇻🇳 Vietnam
06

Recommendations

Actions taken & recommended

  • IP 27.71.98.221 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

🌊 Traffic Flood Defense

IP 27.71.98.221 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

27.71.98.221 has been assigned a threat score of 70/100 (High). The IP is rated as a high-level threat. Network administrators should implement blocking rules and monitor for any connections from this address.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

The address 27.71.98.221 originates from Ho Chi Minh City, Vietnam, operating on the network of Viettel Group. It was identified through automated analysis of incoming network traffic across monitored endpoints. During its 5-day observation window, we recorded 236 hostile requests from this IP — roughly 47.2 per day on average. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The IP is engaged in request flooding, sending traffic at rates designed to exhaust server capacity. Vietnam currently accounts for 139 blocked IPs in our database, making it a significant source of malicious traffic. A threat score of 70/100 places this IP in the high-risk category. Blocking at the firewall level is recommended.

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: AS7552

117.4.247.33 (240)171.231.75.231 (130)171.231.178.158 (130)115.76.51.74 (130)171.253.95.24 (130)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.

💡 Web Cache Poisoning Attacks

Cache poisoning manipulates web cache behavior to serve malicious content to other users. By identifying unkeyed inputs that influence cached responses, attackers can inject JavaScript, redirect users, or cause denial of service at scale through the cache infrastructure.

🔍 Check Any IP Address

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