ABUSE.MOM
THREAT REPORT

IP Threat Report
191.237.250.106

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-30 00:53:53
First seen: 2026-07-13 09:49:01
Last seen: 2026-07-26 04:05:36
280

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 280/100. Total malicious requests observed: 2001.

BURSTDANGER_PATHRATIO_404REDIRECT_PROBEUA_SUS
01

Geolocation & Classification

IP Address
191.237.250.106
Type
Hosting
Country
🇧🇷 Brazil
City
São Paulo
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (brazilsouth)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
2001
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 11/2sAbnormally fast request rate — automated scanning+35
Burst 12/2sAbnormally fast request rate — automated scanning+35
Burst 13/2sAbnormally fast request rate — automated scanning+35
Burst 14/2sAbnormally fast request rate — automated scanning+35
Burst 40/10sAbnormally fast request rate — automated scanning+35
Burst 41/10sAbnormally fast request rate — automated scanning+35
Burst 44/10sAbnormally fast request rate — automated scanning+35
Burst 45/10sAbnormally fast request rate — automated scanning+35
Burst 46/10sAbnormally fast request rate — automated scanning+35
Burst 47/10sAbnormally fast request rate — automated scanning+35
Burst 48/10sAbnormally fast request rate — automated scanning+35
Burst 49/10sAbnormally fast request rate — automated scanning+35
Burst 50/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 140Medium-risk: admin panels, config files+60
Danger medium hits: 212Medium-risk: admin panels, config files+60
Danger medium hits: 247Medium-risk: admin panels, config files+60
Danger medium hits: 278Medium-risk: admin panels, config files+60
Danger medium hits: 279Medium-risk: admin panels, config files+60
Danger medium hits: 280Medium-risk: admin panels, config files+60
Danger medium hits: 285Medium-risk: admin panels, config files+60
Danger medium hits: 327Medium-risk: admin panels, config files+60
Danger strong hits: 16High-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: 35High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 36High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 40High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 46High-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 = 1710
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

2026-07-13 09:49:01
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 11/2s (+35)
2026-07-26 04:05:36
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 · 🇧🇷 Brazil
06

Recommendations

Actions taken & recommended

  • IP 191.237.250.106 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 191.237.250.106 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 191.237.250.106 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 191.237.250.106: 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
b.barracudacentral.org
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
cbl.abuseat.org
✓ Clean
bl.blocklist.de
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

191.237.250.106 has been assigned a threat score of 280/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

191.237.250.106 is registered in São Paulo, Brazil, operating on the network of Microsoft Corporation. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. During its 12-day observation window, we recorded 2,001 hostile requests from this IP — roughly 166.8 per day on average. 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 13 flagged addresses, Brazil represents a notable 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 Brazil

20.226.81.88 (280)191.234.169.57 (280)20.226.50.160 (280)191.235.105.17 (280)20.226.66.230 (280)View all →

🏢 Same network: AS8075

20.226.81.88 (280)20.48.26.146 (280)191.234.169.57 (280)52.237.113.70 (280)104.208.65.18 (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.

💡 Initial Access Broker Marketplace

Initial access brokers specialize in gaining entry to corporate networks and selling that access to ransomware operators. This specialization creates an efficient criminal marketplace where compromised credentials and VPN access are traded as commodities.

🔍 Check Any IP Address

Share this report: