ABUSE.MOM
THREAT REPORT

IP Threat Report
100.40.126.12

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 08:52:07
First seen: 2026-03-19 19:00:04
Last seen: 2026-03-19 19:00:04
180

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 180/100. Total malicious requests observed: 1.

UA_CHANGEDDANGER_PATHBURSTREFERER
01

Geolocation & Classification

IP Address
100.40.126.12
Type
Residential
Country
🇺🇸 United States
City
Providence
ISP
Verizon Business
Organization
Verizon Business
Autonomous System
AS701 Verizon Business
Hit Count
1
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger strong hits: 3High-risk paths: shells, RCE vectors, exploits+75
Burst: 24 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 61 req / 10sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
Σ = 180
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

2026-03-19 19:00:04
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA changed for same IP (+25), Danger strong hits: 3 (+75), Burst: 24 req / 2s (+35)
2026-03-19 19:00:04
Last malicious request observed
Total score reached: 180/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Verizon Business
AS701 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 100.40.126.12 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

🤖 User-Agent Anomaly Defense

IP 100.40.126.12 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 100.40.126.12.

09

Blacklist Status (DNSBL)

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

✓ Clean
ix.dnsbl.manitu.net
✓ Clean
dnsbl.sorbs.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
truncate.gbudb.net
✓ Clean
b.barracudacentral.org
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

100.40.126.12 has been assigned a threat score of 180/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

User-Agent AnomalyRequest Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 100.40.126.12 to malicious activity originating from Providence, United States, operating on the network of Verizon Business. The address has been under observation since its initial detection. Over a period of 1 days, this IP generated 1 malicious requests, averaging approximately 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. The dual attack vectors of User-Agent Anomaly combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. With 128 flagged addresses, United States represents a significant presence in our threat database. At 180/100, 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

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🏢 Same network: AS701

71.162.163.122 (210)100.36.123.148 (180)96.231.211.94 (135)96.253.85.198 (135)100.36.150.7 (130)View all →
12

Security Intelligence

💡 TLS Fingerprinting (JA3/JA4)

TLS fingerprinting creates unique identifiers based on how clients negotiate encrypted connections. The JA3 and JA4 methods generate hashes from TLS ClientHello parameters, enabling identification of specific tools and malware regardless of IP address changes.

💡 Mobile Network Threat Landscape

Mobile carrier NAT (CGNAT) means thousands of users share a single public IP, making mobile IPs unreliable for reputation scoring. However, mobile networks are increasingly used as attack platforms through compromised apps and malicious SDKs.

🔍 Check Any IP Address

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