ABUSE.MOM
THREAT REPORT

IP Threat Report
85.203.21.178

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 00:18:17
First seen: 2026-03-21 19:00:05
Last seen: 2026-04-06 13:00:05
185

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 185/100. Total malicious requests observed: 3.

DANGER_PATHRATIO_404REFERER
01

Geolocation & Classification

IP Address
85.203.21.178
Type
VPN/Proxy
Country
🇸🇬 Singapore
City
Singapore
ISP
EXPRESS
Organization
VPN-Consumer-Network
Autonomous System
AS206092 F.N.S. HOLDINGS LIMITED
Hit Count
3
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger strong hits: 6High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 5Medium-risk: admin panels, config files+50
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Foreign referer seenReferer from unrelated external domain+10
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Danger medium hits: 7Medium-risk: admin panels, config files+60
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger medium hits: 2Medium-risk: admin panels, config files+20
Σ = 405
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

2026-03-21 19:00:05
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger strong hits: 6 (+100), Danger medium hits: 5 (+50), 404 ratio 40-60% (+15)
2026-04-06 13:00:05
Last malicious request observed
Total score reached: 185/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

EXPRESS
AS206092 · 🇸🇬 Singapore
06

Recommendations

Actions taken & recommended

  • IP 85.203.21.178 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 85.203.21.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Directory Scan Defense

IP 85.203.21.178 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

07

Neighbors in 85.203.21.0/24

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

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

10

Threat Analysis

85.203.21.178 has been assigned a threat score of 185/100 (Critical). This places it in the critical threat category. Immediate blocking is strongly advised across all network perimeters.

The following attack categories were identified:

Path Enumeration

📊 Threat Analysis

IP address 85.203.21.178 has been traced to Singapore, Singapore, operating on the network of EXPRESS. Our threat detection systems have flagged this address based on observed malicious behavior patterns. During its 15-day observation window, we recorded 3 hostile requests from this IP — roughly 0.2 per day on average. This IP is identified as a VPN or proxy endpoint, commonly used to mask the true origin of attack traffic and bypass geographic or reputation-based blocking. The IP exhibits directory enumeration behavior, systematically requesting non-existent paths to discover hidden files and misconfigured resources. With 154 flagged addresses, Singapore represents a significant presence in our threat database. A score of 185/100 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: AS206092

103.163.220.216 (340)85.203.21.101 (320)85.203.21.157 (310)85.203.21.172 (305)91.217.249.222 (305)View all →
12

Security Intelligence

💡 Remote Code Execution (RCE)

RCE vulnerabilities allow attackers to execute arbitrary code on target servers. These critical flaws often arise from deserialization bugs, template injection, or file upload vulnerabilities, and represent the highest severity class of web application weaknesses.

💡 Brute Force Attack Mechanics

Brute force attacks systematically try username and password combinations to gain unauthorized access. Modern attacks leverage credential databases from previous breaches, testing millions of combinations using distributed botnets across multiple IP addresses.

🔍 Check Any IP Address

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