ABUSE.MOM
THREAT REPORT

IP Threat Report
20.27.221.169

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 10:26:35
First seen: 2026-02-17 17:25:07
Last seen: 2026-02-19 00:00:09
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_PATHRATIO_404BURSTREDIRECT_PROBEIMPORT
01

Geolocation & Classification

IP Address
20.27.221.169
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: 1High-risk paths: shells, RCE vectors, exploits+25
Danger medium hits: 69Medium-risk: admin panels, config files+60
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst: 12 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 42 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 75High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 564Medium-risk: admin panels, config files+60
Burst: 11 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 41 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 56High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 306Medium-risk: admin panels, config files+60
Danger strong hits: 50High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 383Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Danger medium hits: 376Medium-risk: admin panels, config files+60
Burst: 43 req / 10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 385Medium-risk: admin panels, config files+60
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Danger medium hits: 138Medium-risk: admin panels, config files+60
Danger strong hits: 42High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 202Medium-risk: admin panels, config files+60
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger medium hits: 140Medium-risk: admin panels, config files+60
Danger medium hits: 108Medium-risk: admin panels, config files+60
Imported from old blocklistBehavioral anomaly detected by automated analysis+0
Danger strong hits: 22High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 160Medium-risk: admin panels, config files+60
Danger strong hits: 33High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 30High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 213Medium-risk: admin panels, config files+60
Danger strong hits: 39High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 215Medium-risk: admin panels, config files+60
Danger strong hits: 21High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 194Medium-risk: admin panels, config files+60
Danger strong hits: 27High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 211Medium-risk: admin panels, config files+60
Σ = 2300
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

2026-02-17 17:25:07
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: 1 (+25), Danger medium hits: 69 (+60)
2026-02-19 00:00:09
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 20.27.221.169 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 20.27.221.169 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🔎 Directory Scan Defense

IP 20.27.221.169 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 20.27.221.169.

09

Blacklist Status (DNSBL)

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

✓ Clean
Spamhaus ZEN

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

10

Threat Analysis

20.27.221.169 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

Network traffic from 20.27.221.169, located in Osaka, Japan, operating on the network of Microsoft Corporation, has been classified as malicious by our automated threat scoring engine. Over a period of 1 days, this IP generated 20 malicious requests, averaging approximately 20 requests per day. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. With 3 different attack patterns detected, this IP exhibits behavior characteristic of advanced automated scanning frameworks. With 101 flagged addresses, Japan represents a significant presence in our threat database. 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

103.163.220.216 (340)35.243.110.60 (288)20.89.56.154 (280)20.210.188.132 (280)20.194.153.120 (280)View all →

🏢 Same network: AS8075

20.89.56.154 (280)20.210.188.132 (280)20.194.153.120 (280)104.46.236.39 (280)20.46.124.66 (280)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.

💡 HTTP Request Smuggling

Request smuggling exploits differences in how front-end and back-end servers parse HTTP requests. This technique can bypass security controls, poison web caches, and hijack other users sessions by desynchronizing request boundaries.

🔍 Check Any IP Address

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