ABUSE.MOM
THREAT REPORT

IP Threat Report
45.133.5.46

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 10:16:26
First seen: 2026-03-18 05:00:07
Last seen: 2026-03-18 05:00:07
215

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 215/100. Total malicious requests observed: 1.

UA_CHANGEDDANGER_PATHBURST
01

Geolocation & Classification

IP Address
45.133.5.46
Type
VPN/Proxy
Country
🇦🇺 Australia
City
Sydney
ISP
GSL Networks Pty LTD
Organization
VPN Consumer Sydney, Australia
Autonomous System
AS137409 GSL Networks Pty LTD
Hit Count
1
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger strong hits: 101High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 2Medium-risk: admin panels, config files+20
Burst: 8 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 28 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 215
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

2026-03-18 05:00:07
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: 101 (+100), Danger medium hits: 2 (+20)
2026-03-18 05:00:07
Last malicious request observed
Total score reached: 215/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

GSL Networks Pty LTD
AS137409 · 🇦🇺 Australia
06

Recommendations

Actions taken & recommended

  • IP 45.133.5.46 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 45.133.5.0/24
  • 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 45.133.5.46 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 45.133.5.46.

07

Neighbors in 45.133.5.0/24

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
ix.dnsbl.manitu.net
✓ Clean
dnsbl.sorbs.net
✓ Clean
zen.spamhaus.org
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
bl.spamcop.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

45.133.5.46 has been assigned a threat score of 215/100 (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:

User-Agent AnomalyRequest Flooding

📊 Threat Analysis

Network traffic from 45.133.5.46, located in Sydney, Australia, operating on the network of GSL Networks Pty LTD, has been classified as malicious by our automated threat scoring engine. The address has been active for 1 days in our monitoring system, producing 1 flagged requests at a rate of ~1/day. The address operates as a VPN/proxy exit node. Attackers route traffic through anonymizing services to obscure their real location and evade IP-based security controls. The dual attack vectors of User-Agent Anomaly combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. Our records show 109 malicious IPs originating from Australia, positioning it as a significant contributor to global threat activity. A score of 215/100 places this address in the top tier of severity. Block and investigate any historical connections.

This IP is associated with a VPN or proxy service. Attackers frequently route their traffic through anonymizing services to obscure their true location. This makes attribution more challenging but the malicious behavior patterns remain detectable.

11

Related Threats

🇦🇺 Top threats from Australia

20.42.209.0 (280)170.64.203.182 (280)20.213.152.227 (280)20.5.72.178 (280)4.197.33.200 (280)View all →

🏢 Same network: AS137409

85.203.23.12 (340)85.203.23.31 (330)85.203.23.172 (305)85.203.23.29 (305)85.203.23.142 (305)View all →
12

Security Intelligence

💡 HTTP Header Analysis for Threat Detection

Examining HTTP headers beyond User-Agent reveals attack tools and automated scripts. Missing standard headers, unusual ordering, non-standard values, and inconsistencies with claimed client identity all serve as reliable detection signals.

💡 VPN Exit Node Reputation

VPN exit nodes aggregate traffic from many users, creating mixed reputation profiles. While legitimate users seek privacy, attackers exploit VPN services to anonymize malicious activity, making IP-based blocking of VPN nodes a complex policy decision.

🔍 Check Any IP Address

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