ABUSE.MOM
THREAT REPORT

IP Threat Report
4.228.96.99

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-30 00:45:22
First seen: 2026-07-07 18:59:28
Last seen: 2026-07-12 00:58:01
280

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 280/100. Total malicious requests observed: 2716.

BURSTDANGER_PATHRATIO_404REDIRECT_PROBEUA_SUS
01

Geolocation & Classification

IP Address
4.228.96.99
Type
Hosting
Country
🇧🇷 Brazil
City
São Paulo
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (brazilsouth)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
2716
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
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 42/10sAbnormally fast request rate — automated scanning+35
Burst 43/10sAbnormally 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 50/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 110Medium-risk: admin panels, config files+60
Danger medium hits: 143Medium-risk: admin panels, config files+60
Danger medium hits: 273Medium-risk: admin panels, config files+60
Danger medium hits: 279Medium-risk: admin panels, config files+60
Danger medium hits: 362Medium-risk: admin panels, config files+60
Danger medium hits: 419Medium-risk: admin panels, config files+60
Danger medium hits: 420Medium-risk: admin panels, config files+60
Danger medium hits: 85Medium-risk: admin panels, config files+60
Danger strong hits: 11High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 20High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 21High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 25High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 34High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 43High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 51High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 53High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 60High-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 = 1815
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

2026-07-07 18:59:28
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Burst 12/2s (+35), Burst 13/2s (+35)
2026-07-12 00:58:01
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 4.228.96.99 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

🔎 Path Enumeration Protection

Block scanning from 4.228.96.99: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Traffic Flood Defense

IP 4.228.96.99 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 User-Agent Anomaly Defense

IP 4.228.96.99 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

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
spam.dnsbl.sorbs.net
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

4.228.96.99 has been assigned a threat score of 280/100 (Critical). A score this high marks a critical threat actor. This address has demonstrated persistent, aggressive malicious behavior across multiple detection vectors.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

IP address 4.228.96.99 has been traced to São Paulo, Brazil, operating on the network of Microsoft Corporation. Our threat detection systems have flagged this address based on observed malicious behavior patterns. Our sensors captured 2,716 malicious requests from this address across a 4-day span, reflecting a sustained attack cadence of ~679 requests per day. 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 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 102 malicious IPs originating from Brazil, positioning it as a significant contributor to global threat activity. With a threat score of 280/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

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

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🏢 Same network: AS8075

20.226.81.88 (280)20.226.50.160 (280)20.206.89.25 (280)191.232.233.136 (280)191.232.196.14 (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.

💡 Automated Incident Response

Automated response systems can block threats in milliseconds, far faster than human analysts. However, automation requires careful safeguards — rate limits on blocking actions, automatic expiration, and human review queues prevent automated systems from causing self-inflicted outages.

🔍 Check Any IP Address

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