ABUSE.MOM
THREAT REPORT

IP Threat Report
138.64.229.4

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-10-26 04:41:25
First seen: 2026-09-18 23:26:03
Last seen: 2026-10-18 00:05:15
88

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 88/100. Total malicious requests observed: 263.

DANGER_PATHMETHODRATIO_404UA_CHANGED
01

Geolocation & Classification

IP Address
138.64.229.4
Type
Residential
Country
🇯🇵 Japan
City
Osaka
ISP
ASAHI Net, Inc.
Organization
ASAHI
Autonomous System
AS4685 Asahi Net
Hit Count
263
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Danger medium hits: 1Medium-risk: admin panels, config files+10
Danger medium hits: 2Medium-risk: admin panels, config files+20
Danger medium hits: 4Medium-risk: admin panels, config files+40
POST seenBehavioral anomaly detected by automated analysis+8
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 143
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-09-18 23:26:03
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), 404 ratio >= 60% (+25), Danger medium hits: 1 (+10)
2026-10-18 00:05:15
Last malicious request observed
Total score reached: 88/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

ASAHI Net, Inc.
AS4685 · 🇯🇵 Japan

We have detected 2 malicious IPs from this autonomous system.

View all IPs from AS4685 →
06

Recommendations

Actions taken & recommended

  • IP 138.64.229.4 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

🔎 Directory Scan Defense

IP 138.64.229.4 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🤖 Bot Detection

Address UA spoofing from 138.64.229.4: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

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
b.barracudacentral.org
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

138.64.229.4 has been assigned a threat score of 88/100 (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:

Path EnumerationUser-Agent Anomaly

📊 Threat Analysis

The address 138.64.229.4 originates from Osaka, Japan, operating on the network of ASAHI Net, Inc.. It was identified through automated analysis of incoming network traffic across monitored endpoints. Over a period of 29 days, this IP generated 263 malicious requests, averaging approximately 9.1 requests per day. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The dual attack vectors of Path Enumeration combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Our records show 1,342 malicious IPs originating from Japan, positioning it as a major contributor to global threat activity. The score of 88/100 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 Japan

103.163.220.216 (340)35.189.151.182 (320)168.110.63.243 (320)168.110.58.114 (320)129.225.172.187 (310)View all →

🏢 Same network: AS4685

110.5.43.159 (103)View all →
12

Security Intelligence

💡 SQL Injection Campaigns

SQL injection remains one of the most common web attack vectors. Attackers inject malicious SQL code through input fields to extract database contents, modify data, or gain administrative access. Automated scanners test for SQLi vulnerabilities at massive scale.

💡 Data Center IP Reputation

IPs originating from data centers and hosting providers account for a disproportionate amount of malicious traffic. Compromised VPS instances, bulletproof hosting, and abused trial accounts create persistent attack infrastructure that can be difficult to shut down.

🔍 Check Any IP Address

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