ABUSE.MOM
THREAT REPORT

IP Threat Report
183.221.133.3

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-28 14:53:57
First seen: 2026-06-28 14:47:30
Last seen: 2026-07-05 04:02:12
80

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 80/100. Total malicious requests observed: 810.

BURSTREFERER
01

Geolocation & Classification

IP Address
183.221.133.3
Type
Mobile
Country
🇨🇳 China
City
Chengdu
ISP
China Mobile
Organization
China Mobile Communications Corporation
Autonomous System
AS9808 China Mobile Communications Group Co., Ltd.
Hit Count
810
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 10/10sAbnormally fast request rate — automated scanning+35
Burst 6/2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer 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

2026-06-28 14:47:30
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 10/10s (+35), Burst 6/2s (+35), Foreign referer (+10)
2026-07-05 04:02:12
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

China Mobile
AS9808 · 🇨🇳 China
06

Recommendations

Actions taken & recommended

  • IP 183.221.133.3 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 183.221.133.3.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

183.221.133.3 has been assigned a threat score of 80/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

The following attack categories were identified:

Request Flooding

📊 Threat Analysis

183.221.133.3 is registered in Chengdu, China, operating on the network of China Mobile. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. The address has been active for 6 days in our monitoring system, producing 810 flagged requests at a rate of ~135/day. This is a mobile network IP. While mobile addresses are typically shared via CGNAT, persistent malicious activity from this specific address suggests automated abuse. Rate-based attacks from this IP aim to overwhelm server resources through high-volume request flooding. Our records show 116 malicious IPs originating from China, positioning it as a significant contributor to global threat activity. At 80/100, this IP warrants immediate defensive action.

11

Related Threats

🇨🇳 Top threats from China

180.184.55.222 (340)47.93.233.71 (273)135.136.42.150 (255)135.136.42.24 (255)135.136.42.145 (255)View all →

🏢 Same network: AS9808

120.220.12.213 (105)112.31.167.112 (95)106.75.19.104 (90)111.58.22.14 (85)183.207.48.139 (80)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.

💡 Patch Management Urgency

The window between vulnerability disclosure and exploitation continues to shrink. Critical CVEs are now exploited within hours of publication. Automated patch management, virtual patching through WAFs, and rapid deployment pipelines are essential for timely remediation.

🔍 Check Any IP Address

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