ABUSE.MOM
THREAT REPORT

IP Threat Report
4.184.185.91

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 10:59:17
First seen: 2026-07-29 14:39:12
Last seen: 2026-08-09 04:17:18
280

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 280/100. Total malicious requests observed: 12575.

BURSTDANGER_PATHRATIO_404REDIRECT_PROBEUA_SUS
01

Geolocation & Classification

IP Address
4.184.185.91
Type
Hosting
Country
🇩🇪 Germany
City
Frankfurt am Main
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (germanywestcentral)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
12575
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
Burst 100/10sAbnormally fast request rate — automated scanning+35
Burst 103/10sAbnormally fast request rate — automated scanning+35
Burst 104/10sAbnormally fast request rate — automated scanning+35
Burst 106/10sAbnormally fast request rate — automated scanning+35
Burst 110/10sAbnormally fast request rate — automated scanning+35
Burst 111/10sAbnormally fast request rate — automated scanning+35
Burst 112/10sAbnormally fast request rate — automated scanning+35
Burst 115/10sAbnormally fast request rate — automated scanning+35
Burst 120/10sAbnormally fast request rate — automated scanning+35
Burst 123/10sAbnormally fast request rate — automated scanning+35
Burst 126/10sAbnormally fast request rate — automated scanning+35
Burst 127/10sAbnormally fast request rate — automated scanning+35
Burst 128/10sAbnormally fast request rate — automated scanning+35
Burst 130/10sAbnormally fast request rate — automated scanning+35
Burst 131/10sAbnormally fast request rate — automated scanning+35
Burst 138/10sAbnormally fast request rate — automated scanning+35
Burst 143/10sAbnormally fast request rate — automated scanning+35
Burst 146/10sAbnormally fast request rate — automated scanning+35
Burst 147/10sAbnormally fast request rate — automated scanning+35
Burst 148/10sAbnormally fast request rate — automated scanning+35
Burst 150/10sAbnormally fast request rate — automated scanning+35
Burst 154/10sAbnormally fast request rate — automated scanning+35
Burst 156/10sAbnormally fast request rate — automated scanning+35
Burst 158/10sAbnormally fast request rate — automated scanning+35
Burst 159/10sAbnormally fast request rate — automated scanning+35
Burst 160/10sAbnormally fast request rate — automated scanning+35
Burst 166/10sAbnormally fast request rate — automated scanning+35
Burst 169/10sAbnormally fast request rate — automated scanning+35
Burst 174/10sAbnormally fast request rate — automated scanning+35
Burst 176/10sAbnormally fast request rate — automated scanning+35
Burst 188/10sAbnormally fast request rate — automated scanning+35
Burst 189/10sAbnormally fast request rate — automated scanning+35
Burst 191/10sAbnormally fast request rate — automated scanning+35
Burst 200/10sAbnormally fast request rate — automated scanning+35
Burst 33/2sAbnormally fast request rate — automated scanning+35
Burst 37/2sAbnormally fast request rate — automated scanning+35
Burst 38/2sAbnormally fast request rate — automated scanning+35
Burst 39/2sAbnormally fast request rate — automated scanning+35
Burst 42/2sAbnormally fast request rate — automated scanning+35
Burst 43/2sAbnormally fast request rate — automated scanning+35
Burst 45/2sAbnormally fast request rate — automated scanning+35
Burst 46/2sAbnormally fast request rate — automated scanning+35
Burst 47/2sAbnormally fast request rate — automated scanning+35
Burst 48/2sAbnormally fast request rate — automated scanning+35
Burst 49/2sAbnormally fast request rate — automated scanning+35
Burst 50/2sAbnormally fast request rate — automated scanning+35
Burst 51/2sAbnormally fast request rate — automated scanning+35
Burst 52/2sAbnormally fast request rate — automated scanning+35
Burst 53/2sAbnormally fast request rate — automated scanning+35
Burst 54/2sAbnormally fast request rate — automated scanning+35
Burst 55/2sAbnormally fast request rate — automated scanning+35
Burst 56/2sAbnormally fast request rate — automated scanning+35
Burst 57/2sAbnormally fast request rate — automated scanning+35
Burst 58/2sAbnormally fast request rate — automated scanning+35
Burst 59/2sAbnormally fast request rate — automated scanning+35
Burst 60/2sAbnormally fast request rate — automated scanning+35
Burst 61/2sAbnormally fast request rate — automated scanning+35
Burst 62/2sAbnormally fast request rate — automated scanning+35
Burst 63/2sAbnormally fast request rate — automated scanning+35
Burst 64/2sAbnormally fast request rate — automated scanning+35
Burst 65/2sAbnormally fast request rate — automated scanning+35
Burst 66/2sAbnormally fast request rate — automated scanning+35
Burst 68/2sAbnormally fast request rate — automated scanning+35
Burst 69/2sAbnormally fast request rate — automated scanning+35
Burst 71/2sAbnormally fast request rate — automated scanning+35
Burst 72/10sAbnormally fast request rate — automated scanning+35
Burst 72/2sAbnormally fast request rate — automated scanning+35
Burst 73/2sAbnormally fast request rate — automated scanning+35
Burst 74/10sAbnormally fast request rate — automated scanning+35
Burst 74/2sAbnormally fast request rate — automated scanning+35
Burst 84/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 100Medium-risk: admin panels, config files+60
Danger medium hits: 104Medium-risk: admin panels, config files+60
Danger medium hits: 106Medium-risk: admin panels, config files+60
Danger medium hits: 111Medium-risk: admin panels, config files+60
Danger medium hits: 112Medium-risk: admin panels, config files+60
Danger medium hits: 122Medium-risk: admin panels, config files+60
Danger medium hits: 135Medium-risk: admin panels, config files+60
Danger medium hits: 148Medium-risk: admin panels, config files+60
Danger medium hits: 151Medium-risk: admin panels, config files+60
Danger medium hits: 168Medium-risk: admin panels, config files+60
Danger medium hits: 174Medium-risk: admin panels, config files+60
Danger medium hits: 180Medium-risk: admin panels, config files+60
Danger medium hits: 183Medium-risk: admin panels, config files+60
Danger medium hits: 187Medium-risk: admin panels, config files+60
Danger medium hits: 195Medium-risk: admin panels, config files+60
Danger medium hits: 226Medium-risk: admin panels, config files+60
Danger medium hits: 227Medium-risk: admin panels, config files+60
Danger medium hits: 256Medium-risk: admin panels, config files+60
Danger medium hits: 263Medium-risk: admin panels, config files+60
Danger medium hits: 270Medium-risk: admin panels, config files+60
Danger medium hits: 277Medium-risk: admin panels, config files+60
Danger medium hits: 278Medium-risk: admin panels, config files+60
Danger medium hits: 281Medium-risk: admin panels, config files+60
Danger medium hits: 283Medium-risk: admin panels, config files+60
Danger medium hits: 330Medium-risk: admin panels, config files+60
Danger medium hits: 342Medium-risk: admin panels, config files+60
Danger medium hits: 352Medium-risk: admin panels, config files+60
Danger medium hits: 362Medium-risk: admin panels, config files+60
Danger medium hits: 378Medium-risk: admin panels, config files+60
Danger medium hits: 393Medium-risk: admin panels, config files+60
Danger medium hits: 416Medium-risk: admin panels, config files+60
Danger medium hits: 417Medium-risk: admin panels, config files+60
Danger medium hits: 524Medium-risk: admin panels, config files+60
Danger medium hits: 534Medium-risk: admin panels, config files+60
Danger medium hits: 554Medium-risk: admin panels, config files+60
Danger medium hits: 676Medium-risk: admin panels, config files+60
Danger medium hits: 74Medium-risk: admin panels, config files+60
Danger medium hits: 84Medium-risk: admin panels, config files+60
Danger medium hits: 94Medium-risk: admin panels, config files+60
Danger medium hits: 95Medium-risk: admin panels, config files+60
Danger medium hits: 96Medium-risk: admin panels, config files+60
Danger strong hits: 10High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 14High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 15High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 18High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger strong hits: 20High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 25High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Danger strong hits: 30High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 32High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 34High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 40High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 43High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 52High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 56High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 6High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 60High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 68High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 7High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 74High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 77High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 8High-risk paths: shells, RCE vectors, exploits+100
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA suspiciousBehavioral anomaly detected by automated analysis+15
Σ = 7245
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

2026-07-29 14:39:12
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), Burst 100/10s (+35)
2026-08-09 04:17:18
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 · 🇩🇪 Germany
06

Recommendations

Actions taken & recommended

  • IP 4.184.185.91 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 4.184.185.91 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 4.184.185.91 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 Bot Detection

Address UA spoofing from 4.184.185.91: 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
zen.spamhaus.org
✓ Clean
bl.blocklist.de
✓ Clean
dnsbl.dronebl.org
✓ Clean
bl.spamcop.net
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com
✓ Clean
cbl.abuseat.org
✓ Clean
spam.dnsbl.sorbs.net

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

10

Threat Analysis

4.184.185.91 has been assigned a threat score of 280/100 (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 EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

The address 4.184.185.91 originates from Frankfurt am Main, Germany, operating on the network of Microsoft Corporation. It was identified through automated analysis of incoming network traffic across monitored endpoints. During its 10-day observation window, we recorded 12,575 hostile requests from this IP — roughly 1257.5 per day on average. The IP is classified as hosting/datacenter infrastructure, commonly associated with rented servers used for automated attack campaigns, botnet command-and-control, or vulnerability scanning at scale. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. Germany currently accounts for 12 blocked IPs in our database, making it a notable source of malicious traffic. 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 Germany

20.79.30.30 (280)20.52.217.208 (280)20.52.146.24 (280)20.79.250.162 (280)20.79.29.209 (280)View all →

🏢 Same network: AS8075

68.155.155.199 (320)20.127.136.245 (318)20.151.200.44 (315)20.220.203.117 (280)20.79.30.30 (280)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.

💡 Zero Trust Architecture Principles

Zero trust eliminates implicit trust based on network location. Every access request is verified regardless of source, minimizing the impact of compromised credentials or network breaches. Implementation requires strong identity verification and continuous authorization.

🔍 Check Any IP Address

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