ABUSE.MOM
THREAT REPORT

IP Threat Report
43.99.31.188

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 12:40:06
First seen: 2026-03-16 16:00:06
Last seen: 2026-03-16 16:00:06
80

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 80/100. Total malicious requests observed: 1.

BURSTREFERER
01

Geolocation & Classification

IP Address
43.99.31.188
Type
Residential
Country
🇭🇰 Hong Kong
City
Hong Kong
ISP
Alibaba (US) Technology Co., Ltd.
Organization
Alibaba.com LLC
Autonomous System
AS45102 Alibaba (US) Technology Co., Ltd.
Hit Count
1
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst: 6 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 12 req / 10sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
Σ = 80
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

2026-03-16 16:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst: 6 req / 2s (+35), Burst: 12 req / 10s (+35), Foreign referer seen (+10)
2026-03-16 16:00:06
Last malicious request observed
Total score reached: 80/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Alibaba (US) Technology Co., Ltd.
AS45102 · 🇭🇰 Hong Kong
06

Recommendations

Actions taken & recommended

  • IP 43.99.31.188 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 43.99.31.0/24
  • 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 43.99.31.188 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 43.99.31.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

09

Blacklist Status (DNSBL)

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

✓ Clean
ix.dnsbl.manitu.net
✓ Clean
zen.spamhaus.org
✓ Clean
dnsbl.sorbs.net
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
truncate.gbudb.net
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

43.99.31.188 has been assigned a threat score of 80/100 (Critical). This is a critical-level threat. Systems administrators should treat this IP as hostile and block all inbound connections without exception.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 43.99.31.188 to malicious activity originating from Hong Kong, Hong Kong, operating on the network of Alibaba (US) Technology Co., Ltd.. The address has been under observation since its initial detection. During its 1-day observation window, we recorded 1 hostile requests from this IP — roughly 1 per day on average. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. The IP is engaged in request flooding, sending traffic at rates designed to exhaust server capacity. Our records show 190 malicious IPs originating from Hong Kong, positioning it as a significant contributor to global threat activity. The score of 80/100 indicates a confirmed malicious actor. Network-level blocking is appropriate.

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 Hong Kong

20.205.115.105 (280)20.24.82.132 (280)23.100.90.148 (280)65.52.160.249 (280)20.187.125.76 (280)View all →

🏢 Same network: AS45102

8.213.218.53 (305)47.237.199.253 (300)8.215.205.243 (265)198.11.183.50 (220)8.217.181.151 (215)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.

💡 Backup and Recovery Against Ransomware

Immutable, offline backups remain the most effective defense against ransomware. The 3-2-1 rule — three copies on two media types with one offsite — combined with regular recovery testing ensures business continuity after encryption attacks.

🔍 Check Any IP Address

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