ABUSE.MOM
THREAT REPORT

IP Threat Report
104.46.239.31

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:14:42
First seen: 2026-02-21 01:35:07
Last seen: 2026-02-24 02:00:07
280

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 280/100. Total malicious requests observed: 20.

UA_SUSDANGER_PATHREDIRECT_PROBEBURSTRATIO_404
01

Geolocation & Classification

IP Address
104.46.239.31
Type
Hosting
Country
🇯🇵 Japan
City
Osaka
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (japanwest)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
20
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA suspicious (short/empty)Behavioral anomaly detected by automated analysis+15
Danger strong hits: 58High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 282Medium-risk: admin panels, config files+60
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Burst: 12 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 41 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 20High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 99Medium-risk: admin panels, config files+60
Burst: 39 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 65High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 255Medium-risk: admin panels, config files+60
Burst: 40 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 9High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 36Medium-risk: admin panels, config files+60
Burst: 32 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Danger medium hits: 4Medium-risk: admin panels, config files+40
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Danger strong hits: 74High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 294Medium-risk: admin panels, config files+60
Burst: 44 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 13 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 47 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 45 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 49High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 293Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger strong hits: 56High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 381Medium-risk: admin panels, config files+60
Danger strong hits: 156High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 762Medium-risk: admin panels, config files+60
Burst: 25 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 87 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 46 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 71High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 272Medium-risk: admin panels, config files+60
Danger medium hits: 22Medium-risk: admin panels, config files+60
Burst: 27 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 86High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 464Medium-risk: admin panels, config files+60
Danger medium hits: 108Medium-risk: admin panels, config files+60
Danger strong hits: 78High-risk paths: shells, RCE vectors, exploits+100
Σ = 2475
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

2026-02-21 01:35:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA suspicious (short/empty) (+15), Danger strong hits: 58 (+100), Danger medium hits: 282 (+60)
2026-02-24 02:00:07
Last malicious request observed
Total score reached: 280/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft Corporation
AS8075 · 🇯🇵 Japan
06

Recommendations

Actions taken & recommended

  • IP 104.46.239.31 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

🤖 User-Agent Anomaly Defense

IP 104.46.239.31 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🔎 Path Enumeration Protection

Block scanning from 104.46.239.31: 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 104.46.239.31.

09

Blacklist Status (DNSBL)

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

⛔ LISTED
Spamhaus ZEN

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

10

Threat Analysis

104.46.239.31 has been assigned a threat score of 280/100 (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:

User-Agent AnomalyPath EnumerationRequest Flooding

📊 Threat Analysis

104.46.239.31 is registered in Osaka, Japan, operating on the network of Microsoft Corporation. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. The address has been active for 3 days in our monitoring system, producing 20 flagged requests at a rate of ~6.7/day. This address belongs to a datacenter or cloud hosting provider. Hosting IPs are frequently leveraged by threat actors who rent cheap VPS instances specifically for conducting attacks. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. Our records show 15 malicious IPs originating from Japan, positioning it as a notable contributor to global threat activity. A score of 280/100 places this address in the top tier of severity. Block and investigate any historical connections.

This IP belongs to a hosting or data center provider. Malicious traffic from hosting infrastructure often originates from compromised VPS instances, rented servers used for scanning campaigns, or abused free-tier cloud accounts. Hosting providers typically respond to abuse reports within 24-72 hours.

11

Related Threats

🇯🇵 Top threats from Japan

20.89.56.154 (280)20.27.221.169 (280)20.210.188.132 (280)20.194.153.120 (280)104.46.236.39 (280)View all →

🏢 Same network: AS8075

74.241.249.229 (340)20.151.111.128 (308)4.182.24.88 (285)20.65.61.3 (283)4.205.39.97 (283)View all →
12

Security Intelligence

💡 User-Agent Analysis Techniques

Analyzing User-Agent strings reveals automated tools masquerading as legitimate browsers. Inconsistencies between claimed browser capabilities and actual behavior, impossible version combinations, and known scanner signatures help identify malicious clients.

💡 CORS Misconfiguration Exploitation

Cross-Origin Resource Sharing misconfigurations can expose sensitive APIs to unauthorized origins. Wildcard policies, reflected origins, and null origin allowlisting create vulnerabilities that attackers exploit for data theft and unauthorized actions.

🔍 Check Any IP Address

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