ABUSE.MOM
THREAT REPORT

IP Threat Report
158.158.54.131

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-08 04:29:11
First seen: 2026-07-31 22:29:03
Last seen: 2026-08-09 04:17:15
255

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 255/100. Total malicious requests observed: 5590.

BURSTDANGER_PATHRATIO_404
01

Geolocation & Classification

IP Address
158.158.54.131
Type
Residential
Country
🇪🇸 Spain
City
Madrid
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (spaincentral)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
5590
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 107/10sAbnormally fast request rate — automated scanning+35
Burst 15/2sAbnormally fast request rate — automated scanning+35
Burst 16/2sAbnormally fast request rate — automated scanning+35
Burst 22/2sAbnormally fast request rate — automated scanning+35
Burst 23/2sAbnormally fast request rate — automated scanning+35
Burst 26/2sAbnormally 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 33/2sAbnormally fast request rate — automated scanning+35
Burst 34/2sAbnormally fast request rate — automated scanning+35
Burst 35/2sAbnormally fast request rate — automated scanning+35
Burst 36/2sAbnormally 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 39/10sAbnormally fast request rate — automated scanning+35
Burst 39/2sAbnormally 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 41/2sAbnormally fast request rate — automated scanning+35
Burst 43/10sAbnormally fast request rate — automated scanning+35
Burst 45/10sAbnormally 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
Burst 55/10sAbnormally fast request rate — automated scanning+35
Burst 91/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 112Medium-risk: admin panels, config files+60
Danger medium hits: 115Medium-risk: admin panels, config files+60
Danger medium hits: 121Medium-risk: admin panels, config files+60
Danger medium hits: 127Medium-risk: admin panels, config files+60
Danger medium hits: 128Medium-risk: admin panels, config files+60
Danger medium hits: 131Medium-risk: admin panels, config files+60
Danger medium hits: 138Medium-risk: admin panels, config files+60
Danger medium hits: 141Medium-risk: admin panels, config files+60
Danger medium hits: 163Medium-risk: admin panels, config files+60
Danger medium hits: 165Medium-risk: admin panels, config files+60
Danger medium hits: 180Medium-risk: admin panels, config files+60
Danger medium hits: 201Medium-risk: admin panels, config files+60
Danger medium hits: 205Medium-risk: admin panels, config files+60
Danger medium hits: 216Medium-risk: admin panels, config files+60
Danger medium hits: 243Medium-risk: admin panels, config files+60
Danger medium hits: 252Medium-risk: admin panels, config files+60
Danger medium hits: 294Medium-risk: admin panels, config files+60
Danger medium hits: 36Medium-risk: admin panels, config files+60
Danger medium hits: 38Medium-risk: admin panels, config files+60
Danger medium hits: 39Medium-risk: admin panels, config files+60
Danger medium hits: 40Medium-risk: admin panels, config files+60
Danger medium hits: 41Medium-risk: admin panels, config files+60
Danger medium hits: 43Medium-risk: admin panels, config files+60
Danger medium hits: 45Medium-risk: admin panels, config files+60
Danger medium hits: 47Medium-risk: admin panels, config files+60
Danger medium hits: 49Medium-risk: admin panels, config files+60
Danger medium hits: 72Medium-risk: admin panels, config files+60
Danger medium hits: 74Medium-risk: admin panels, config files+60
Danger medium hits: 76Medium-risk: admin panels, config files+60
Danger medium hits: 78Medium-risk: admin panels, config files+60
Danger medium hits: 79Medium-risk: admin panels, config files+60
Danger medium hits: 85Medium-risk: admin panels, config files+60
Danger medium hits: 86Medium-risk: admin panels, config files+60
Danger medium hits: 87Medium-risk: admin panels, config files+60
Danger medium hits: 88Medium-risk: admin panels, config files+60
Danger medium hits: 89Medium-risk: admin panels, config files+60
Danger medium hits: 90Medium-risk: admin panels, config files+60
Danger medium hits: 91Medium-risk: admin panels, config files+60
Danger medium hits: 92Medium-risk: admin panels, config files+60
Danger medium hits: 98Medium-risk: admin panels, config files+60
Danger strong hits: 1High-risk paths: shells, RCE vectors, exploits+25
Danger strong hits: 10High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 11High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 12High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 13High-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: 19High-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: 21High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 23High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 25High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 26High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 31High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 33High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 34High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 36High-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: 42High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 44High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 5High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 50High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 6High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 8High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 9High-risk paths: shells, RCE vectors, exploits+100
Σ = 6010
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

2026-07-31 22:29:03
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst 107/10s (+35), Burst 15/2s (+35)
2026-08-09 04:17:15
Last malicious request observed
Total score reached: 255/100
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 158.158.54.131 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Other malicious IPs detected in the same /24 subnet — consider blocking 158.158.54.0/24
  • 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 158.158.54.131 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 158.158.54.131 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 158.158.54.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

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

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

10

Threat Analysis

158.158.54.131 has been assigned a threat score of 255/100 (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 Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 158.158.54.131 to malicious activity originating from Madrid, Spain, operating on the network of Microsoft Corporation. The address has been under observation since its initial detection. During its 8-day observation window, we recorded 5,590 hostile requests from this IP — roughly 698.8 per day on average. This is a residential IP address, suggesting a compromised home device such as a router, smart appliance, or infected workstation participating in a botnet. Two attack patterns were identified (Path Enumeration and Request Flooding), suggesting a semi-automated campaign that targets multiple vulnerabilities. Our records show 115 malicious IPs originating from Spain, positioning it as a significant contributor to global threat activity. With a threat score of 255/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

This IP is classified as residential, suggesting it may belong to a compromised home device, IoT botnet member, or an infected personal computer. Residential IPs involved in attacks often indicate malware infection without the owner's knowledge.

11

Related Threats

🇪🇸 Top threats from Spain

45.67.99.32 (305)158.173.36.160 (305)212.30.33.72 (305)34.175.3.135 (298)34.175.136.81 (295)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.

💡 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: