ABUSE.MOM
THREAT REPORT

IP Threat Report
139.170.72.191

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 04:11:50
First seen: 2026-09-30 18:34:08
Last seen: 2026-10-04 00:56:21
90

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 90/100. Total malicious requests observed: 63.

BURSTREDIRECT_PROBE
01

Geolocation & Classification

IP Address
139.170.72.191
Type
Residential
Country
🇨🇳 China
City
Xining
ISP
China Unicom Qinghai Province Network
Organization
Unknown
Autonomous System
AS4837 CHINA UNICOM China169 Backbone
Hit Count
63
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 33/10sAbnormally fast request rate — automated scanning+35
Burst 9/2sAbnormally fast request rate — automated scanning+35
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 90
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

2026-09-30 18:34:08
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 33/10s (+35), Burst 9/2s (+35), Probe 302→404 (+20)
2026-10-04 00:56:21
Last malicious request observed
Total score reached: 90/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

China Unicom Qinghai 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 139.170.72.191 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 139.170.72.0/24
  • 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 139.170.72.191.

🔎 Directory Scan Defense

IP 139.170.72.191 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

07

Neighbors in 139.170.72.0/24

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

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

10

Threat Analysis

139.170.72.191 has been assigned a threat score of 90/100 (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 FloodingPath Enumeration

📊 Threat Analysis

Threat intelligence analysis has linked 139.170.72.191 to malicious activity originating from Xining, China, operating on the network of China Unicom Qinghai Province Network. The address has been under observation since its initial detection. During its 3-day observation window, we recorded 63 hostile requests from this IP — roughly 21 per day on average. The address is classified as residential, meaning it likely belongs to an end-user ISP connection. Malicious activity from residential IPs typically indicates device compromise or botnet membership. The dual attack vectors of Request Flooding combined with Path Enumeration indicate a coordinated assault rather than opportunistic scanning. China currently accounts for 2,897 blocked IPs in our database, making it a major source of malicious traffic. With a threat score of 90/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly 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 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.

💡 Content Delivery Network Risks

CDNs can inadvertently mask the true origin of malicious traffic, making attribution difficult. Attackers abuse CDN services to proxy their attacks, leverage cached content for amplification, and exploit misconfigurations in CDN-to-origin connections.

🔍 Check Any IP Address

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