ABUSE.MOM
THREAT REPORT

IP Threat Report
45.156.129.154

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:58:32
First seen: 2026-03-04 12:00:06
Last seen: 2026-05-15 19:00:06
85

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 85/100. Total malicious requests observed: 4.

DANGER_PATHREFERER
01

Geolocation & Classification

IP Address
45.156.129.154
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
4
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Foreign referer seenReferer from unrelated external domain+10
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Σ = 135
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-03-04 12:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 2 (+50), Foreign referer seen (+10), Danger strong hits: 3 (+75)
2026-05-15 19:00:06
Last malicious request observed
Total score reached: 85/100
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 45.156.129.154 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

⚙️ General Security

Add 45.156.129.154 to your firewall blocklist. Review logs for successful connections. Enable comprehensive logging on all public-facing services.

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
Spamhaus ZEN

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

10

Threat Analysis

45.156.129.154 has been assigned a threat score of 85/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

📊 Threat Analysis

The address 45.156.129.154 originates from Chicago, United States, operating on the network of NSEC - Sistemas Informaticos, S.A.. It was identified through automated analysis of incoming network traffic across monitored endpoints. Over a period of 72 days, this IP generated 4 malicious requests, averaging approximately 0.1 requests per day. The address is classified as residential, meaning it likely belongs to an end-user ISP connection. Malicious activity from residential IPs typically indicates device compromise or botnet membership. Our records show 144 malicious IPs originating from United States, positioning it as a significant contributor to global threat activity. At 85/100, this IP warrants immediate defensive action.

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

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🏢 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

💡 HTTP Request Smuggling

Request smuggling exploits differences in how front-end and back-end servers parse HTTP requests. This technique can bypass security controls, poison web caches, and hijack other users sessions by desynchronizing request boundaries.

💡 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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