ABUSE.MOM
THREAT REPORT

IP Threat Report
158.158.16.147

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-31 21:27:01
First seen: 2026-07-26 04:48:35
Last seen: 2026-07-31 21:21:45
205

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 205/100. Total malicious requests observed: 1679.

BURSTDANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
158.158.16.147
Type
Hosting
Country
🇪🇸 Spain
City
Madrid
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (spaincentral)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
1679
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 18/10sAbnormally fast request rate — automated scanning+35
Burst 18/2sAbnormally fast request rate — automated scanning+35
Burst 20/10sAbnormally fast request rate — automated scanning+35
Burst 20/2sAbnormally fast request rate — automated scanning+35
Burst 31/2sAbnormally fast request rate — automated scanning+35
Burst 32/2sAbnormally fast request rate — automated scanning+35
Burst 38/10sAbnormally fast request rate — automated scanning+35
Burst 38/2sAbnormally fast request rate — automated scanning+35
Danger strong hits: 18High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 19High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 37High-risk paths: shells, RCE vectors, exploits+100
Probe 302→404Behavioral anomaly detected by automated analysis+20
Σ = 640
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

2026-07-26 04:48:35
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 18/10s (+35)
2026-07-31 21:21:45
Last malicious request observed
Total score reached: 205/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft Corporation
AS8075 · 🇪🇸 Spain
06

Recommendations

Actions taken & recommended

  • IP 158.158.16.147 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 158.158.16.147 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 158.158.16.147 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

09

Blacklist Status (DNSBL)

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

✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
bl.blocklist.de
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

158.158.16.147 has been assigned a threat score of 205/100 (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 Flooding

📊 Threat Analysis

Our monitoring infrastructure has identified 158.158.16.147, geolocated to Madrid, Spain, operating on the network of Microsoft Corporation, as a source of suspicious network activity. Over a period of 5 days, this IP generated 1,679 malicious requests, averaging approximately 335.8 requests per 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 dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. With 108 flagged addresses, Spain represents a significant presence in our threat database. At 205/100, this is an extremely high-risk address. All traffic should be considered hostile.

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 Spain

45.67.99.32 (305)158.173.36.160 (305)212.30.33.72 (305)34.175.136.81 (295)34.175.202.50 (295)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.

💡 Residential Proxy Networks

Residential proxies route traffic through real home internet connections, making malicious traffic appear to come from legitimate users. Some networks install proxy software bundled with free applications, unknowingly conscripting millions of devices.

🔍 Check Any IP Address

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