ABUSE.MOM
THREAT REPORT

IP Threat Report
85.203.23.10

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 06:22:17
First seen: 2026-02-21 04:45:05
Last seen: 2026-04-02 22:00:08
290

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 290/100. Total malicious requests observed: 8.

BOT_UAREFERERUA_CHANGEDDANGER_PATHBURSTRATIO_404
01

Geolocation & Classification

IP Address
85.203.23.10
Type
VPN/Proxy
Country
🇸🇬 Singapore
City
Singapore
ISP
GSL Networks Pty LTD
Organization
VPN Consumer Singapore, Republic of Singapore
Autonomous System
AS137409 GSL Networks Pty LTD
Hit Count
8
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
Foreign referer seenReferer from unrelated external domain+10
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger strong hits: 48High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 80Medium-risk: admin panels, config files+60
Burst: 8 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 28 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 194High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 283Medium-risk: admin panels, config files+60
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst: 30 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 314High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 285Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst: 9 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 24 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 24High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 41Medium-risk: admin panels, config files+60
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Burst: 16 req / 10sAbnormally fast request rate — automated scanning+35
Danger strong hits: 160High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 244Medium-risk: admin panels, config files+60
Burst: 15 req / 10sAbnormally fast request rate — automated scanning+35
Σ = 1195
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

2026-02-21 04:45:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: Go-http-client (+40), Foreign referer seen (+10), UA changed for same IP (+25)
2026-04-02 22:00:08
Last malicious request observed
Total score reached: 290/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

GSL Networks Pty LTD
AS137409 · 🇸🇬 Singapore
06

Recommendations

Actions taken & recommended

  • IP 85.203.23.10 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 85.203.23.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🤖 Bot Detection

Address UA spoofing from 85.203.23.10: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

🌊 Traffic Flood Defense

IP 85.203.23.10 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🔎 Directory Scan Defense

IP 85.203.23.10 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

07

Neighbors in 85.203.23.0/24

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.

⛔ LISTED
Spamhaus ZEN

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

10

Threat Analysis

85.203.23.10 has been assigned a threat score of 290/100 (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 FloodingPath Enumeration

📊 Threat Analysis

IP address 85.203.23.10 has been traced to Singapore, Singapore, operating on the network of GSL Networks Pty LTD. Our threat detection systems have flagged this address based on observed malicious behavior patterns. During its 40-day observation window, we recorded 8 hostile requests from this IP — roughly 0.2 per day on average. Classified as a VPN or proxy server, this IP serves as an anonymization layer. While VPNs have legitimate uses, this address has been observed routing clearly malicious traffic. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. With 208 flagged addresses, Singapore represents a significant presence in our threat database. A score of 290/100 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 Singapore

85.203.23.12 (340)85.203.23.31 (330)84.17.39.195 (325)192.166.246.30 (325)85.203.21.101 (320)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

💡 User-Agent Analysis Techniques

Analyzing User-Agent strings reveals automated tools masquerading as legitimate browsers. Inconsistencies between claimed browser capabilities and actual behavior, impossible version combinations, and known scanner signatures help identify malicious clients.

💡 GDPR and Threat Intelligence

Processing IP addresses for security purposes under GDPR requires balancing legitimate interest in network protection with data minimization principles. Threat intelligence platforms must implement appropriate retention policies and provide mechanisms for data subject rights.

🔍 Check Any IP Address

Share this report: