ABUSE.MOM
THREAT REPORT

IP Threat Report
203.198.28.191

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-29 22:51:40
First seen: 2026-06-22 16:37:01
Last seen: 2026-07-29 22:48:05
175

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 175/100. Total malicious requests observed: 1093.

BOT_UADANGER_PATHRATIO_404REDIRECT_PROBE
01

Geolocation & Classification

IP Address
203.198.28.191
Type
Unknown
Country
🇭🇰 Hong Kong
City
Central
ISP
PCCW IMS Limited
Organization
PCCW IMS Limited
Autonomous System
Unknown
Hit Count
1093
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger strong hits: 2High-risk paths: shells, RCE vectors, exploits+50
Danger strong hits: 4High-risk paths: shells, RCE vectors, exploits+100
Directory ScanBehavioral anomaly detected by automated analysis+0
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA bot: pythonKnown bot/crawler User-Agent detected+40
Σ = 225
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

2026-06-22 16:37:01
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Danger strong hits: 2 (+50), Danger strong hits: 4 (+100)
2026-07-29 22:48:05
Last malicious request observed
Total score reached: 175/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
06

Recommendations

Actions taken & recommended

  • IP 203.198.28.191 is blocked at application level (HTTP 403)
  • Consider blocking at firewall level (iptables/CSF) to reduce server load
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Path Enumeration Protection

Block scanning from 203.198.28.191: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🤖 User-Agent Anomaly Defense

IP 203.198.28.191 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

09

Blacklist Status (DNSBL)

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

✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl.dronebl.org
✓ Clean
cbl.abuseat.org
✓ Clean
zen.spamhaus.org

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

10

Threat Analysis

203.198.28.191 has been assigned a threat score of 175/100 (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:

Path EnumerationUser-Agent Anomaly

📊 Threat Analysis

IP address 203.198.28.191 has been traced to Central, Hong Kong, operating on the network of PCCW IMS Limited. Our threat detection systems have flagged this address based on observed malicious behavior patterns. Our sensors captured 1,093 malicious requests from this address across a 37-day span, reflecting a sustained attack cadence of ~29.5 requests per day. Two attack patterns were identified (Path Enumeration and User-Agent Anomaly), suggesting a semi-automated campaign that targets multiple vulnerabilities. Hong Kong currently accounts for 101 blocked IPs in our database, making it a significant source of malicious traffic. With a threat score of 175/100, this IP is among the most dangerous addresses in our database. Immediate and complete blocking is strongly recommended.

11

Related Threats

🇭🇰 Top threats from Hong Kong

20.24.198.93 (280)20.24.82.132 (280)20.187.125.76 (280)20.187.67.15 (280)20.205.115.105 (280)View all →
12

Security Intelligence

💡 Cross-Site Scripting (XSS) Attacks

XSS attacks inject malicious scripts into web pages viewed by other users. Reflected XSS uses crafted URLs, while stored XSS persists in databases. Both types can steal session cookies, redirect users, or deface websites.

💡 Memory Safety and Buffer Overflows

Buffer overflow vulnerabilities remain relevant in C/C++ applications despite decades of mitigation efforts. Modern protections like ASLR, stack canaries, and DEP reduce exploitability but determined attackers continue finding bypass techniques.

🔍 Check Any IP Address

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