ABUSE.MOM
THREAT REPORT

IP Threat Report
45.156.129.95

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 13:04:37
First seen: 2026-02-17 17:25:07
Last seen: 2026-05-24 09:59:37
118

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 118/100. Total malicious requests observed: 181.

BOT_UABURSTMETHODRATIO_404REFERERUA_CHANGED
01

Geolocation & Classification

IP Address
45.156.129.95
Type
Residential
Country
🇺🇸 United States
City
Chicago
ISP
NSEC - Sistemas Informaticos, S.A.
Organization
Inap CHI
Autonomous System
AS211680 NSEC - Sistemas Informaticos, S.A.
Hit Count
181
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
Foreign referer seenReferer from unrelated external domain+10
POST requests presentBehavioral anomaly detected by automated analysis+8
POST seenBehavioral anomaly detected by automated analysis+8
UA bot: pythonKnown bot/crawler User-Agent detected+40
UA changedMultiple User-Agents — bot rotation technique+25
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Σ = 186
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

2026-02-17 17:25:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio >= 60% (+25), Burst: 5 req / 2s (+35), Foreign referer (+10)
2026-05-24 09:59:37
Last malicious request observed
Total score reached: 118/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

NSEC - Sistemas Informaticos, S.A.
AS211680 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 45.156.129.95 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 45.156.129.0/24
  • 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 45.156.129.95: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🌊 Traffic Flood Defense

IP 45.156.129.95 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 User-Agent Anomaly Defense

IP 45.156.129.95 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 45.156.129.0/24

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

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

10

Threat Analysis

45.156.129.95 has been assigned a threat score of 118/100 (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

45.156.129.95 is registered in Chicago, United States, operating on the network of NSEC - Sistemas Informaticos, S.A.. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. Our sensors captured 181 malicious requests from this address across a 95-day span, reflecting a sustained attack cadence of ~1.9 requests per day. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. With 43 flagged addresses, United States represents a notable presence in our threat database. At 118/100, this is an extremely high-risk address. All traffic should be considered hostile.

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 United States

45.156.129.176 (130)45.156.129.156 (125)45.156.129.116 (120)45.156.129.164 (110)45.156.129.137 (110)View all →

🏢 Same network: AS211680

45.156.128.108 (145)45.156.128.155 (140)45.156.128.176 (130)45.156.129.176 (130)45.156.128.61 (128)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

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