ABUSE.MOM
THREAT REPORT

IP Threat Report
58.19.143.81

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 05:53:11
First seen: 2026-09-25 09:06:18
Last seen: 2026-09-27 01:41:08
85

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 85/100. Total malicious requests observed: 53.

BURSTRATIO_404
01

Geolocation & Classification

IP Address
58.19.143.81
Type
Residential
Country
🇨🇳 China
City
Xiaogan
ISP
CNC Group CHINA169 Hubei Province Network
Organization
Unknown
Autonomous System
AS4837 CHINA UNICOM China169 Backbone
Hit Count
53
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst 18/10sAbnormally fast request rate — automated scanning+35
Burst 6/2sAbnormally fast request rate — automated scanning+35
Σ = 85
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

2026-09-25 09:06:18
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst 18/10s (+35), Burst 6/2s (+35)
2026-09-27 01:41:08
Last malicious request observed
Total score reached: 85/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

CNC Group CHINA169 Hubei Province Network
AS4837 · 🇨🇳 China

We have detected 1063 malicious IPs from this autonomous system.

View all IPs from AS4837 →
06

Recommendations

Actions taken & recommended

  • IP 58.19.143.81 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

🔎 Path Enumeration Protection

Block scanning from 58.19.143.81: 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 58.19.143.81.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

58.19.143.81 has been assigned a threat score of 85/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

IP address 58.19.143.81 has been traced to Xiaogan, China, operating on the network of CNC Group CHINA169 Hubei Province Network. Our threat detection systems have flagged this address based on observed malicious behavior patterns. Our sensors captured 53 malicious requests from this address across a 1-day span, reflecting a sustained attack cadence of ~53 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. Two attack patterns were identified (Path Enumeration and Request Flooding), suggesting a semi-automated campaign that targets multiple vulnerabilities. Our records show 2,898 malicious IPs originating from China, positioning it as a major contributor to global threat activity. The score of 85/100 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 China

180.184.55.222 (340)82.157.132.42 (310)101.200.57.251 (310)135.136.42.150 (305)135.136.42.228 (295)View all →

🏢 Same network: AS4837

122.190.49.41 (265)122.114.172.161 (255)116.255.252.44 (205)110.249.201.233 (180)110.249.202.15 (180)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.

💡 SSH Brute Force Defense

SSH servers face constant brute force attacks targeting common usernames and weak passwords. Key-based authentication, fail2ban, non-standard ports, and IP allowlisting dramatically reduce the attack surface. Monitoring auth logs reveals active campaigns and compromised credentials.

🔍 Check Any IP Address

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