ABUSE.MOM
THREAT REPORT

IP Threat Report
43.135.108.57

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-27 16:14:17
First seen: 2026-04-19 07:00:04
Last seen: 2026-04-20 17:00:04
175

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 175/100. Total malicious requests observed: 2.

BOT_UADANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
43.135.108.57
Type
Residential
Country
🇭🇰 Hong Kong
City
Hong Kong
ISP
Aceville Pte.ltd
Organization
Unknown
Autonomous System
AS132203 Tencent Building, Kejizhongyi Avenue
Hit Count
2
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: pythonKnown bot/crawler User-Agent detected+40
Danger strong hits: 5High-risk paths: shells, RCE vectors, exploits+100
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Danger strong hits: 6High-risk paths: shells, RCE vectors, exploits+100
Σ = 275
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

2026-04-19 07:00:04
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: python (+40), Danger strong hits: 5 (+100), 404 ratio 40-60% (+15)
2026-04-20 17:00:04
Last malicious request observed
Total score reached: 175/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Aceville Pte.ltd
AS132203 · 🇭🇰 Hong Kong
06

Recommendations

Actions taken & recommended

  • IP 43.135.108.57 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 43.135.108.57 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🔎 Directory Scan Defense

IP 43.135.108.57 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

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

43.135.108.57 has been assigned a threat score of 175/100 (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 AnomalyPath Enumeration

📊 Threat Analysis

IP address 43.135.108.57 has been traced to Hong Kong, Hong Kong, operating on the network of Aceville Pte.ltd. Our threat detection systems have flagged this address based on observed malicious behavior patterns. During its 1-day observation window, we recorded 2 hostile requests from this IP — roughly 2 per day on average. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. Two attack patterns were identified (User-Agent Anomaly and Path Enumeration), suggesting a semi-automated campaign that targets multiple vulnerabilities. A score of 175/100 places this address in the top tier of severity. Block and investigate any historical connections.

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

🇭🇰 Top threats from Hong Kong

43.129.251.109 (135)43.132.214.228 (105)101.32.50.151 (105)124.156.157.91 (105)101.32.48.175 (75)View all →

🏢 Same network: AS132203

43.153.215.90 (243)43.135.130.196 (230)43.128.88.177 (183)43.167.158.248 (170)170.106.101.170 (160)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.

💡 Vulnerability Scanning Explained

Vulnerability scanning is the automated process of probing web applications for known weaknesses. Attackers use tools like Nuclei, Nikto, and ZAP to test thousands of hosts per hour, looking for exposed configuration files, outdated software, and default credentials.

🔍 Check Any IP Address

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