ABUSE.MOM
THREAT REPORT

IP Threat Report
112.121.173.122

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-22 12:00:07
First seen: 2026-02-19 19:05:04
Last seen: 2026-04-11 23:00:08
63

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 63/100. Total malicious requests observed: 8.

DANGER_PATHRATIO_404METHODBURSTREFERER
01

Geolocation & Classification

IP Address
112.121.173.122
Type
Residential
Country
🇭🇰 Hong Kong
City
Cheung Sha Wan
ISP
Netsec Limited
Organization
Simcentric Solutions Limited.
Autonomous System
AS45753 Netsec Limited
Hit Count
8
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 1Medium-risk: admin panels, config files+10
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
POST requests presentBehavioral anomaly detected by automated analysis+8
Burst: 7 req / 2sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
Burst: 6 req / 2sAbnormally fast request rate — automated scanning+35
Σ = 123
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

2026-02-19 19:05:04
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 1 (+10), 404 ratio >= 60% (+25), POST requests present (+8)
2026-04-11 23:00:08
Last malicious request observed
Total score reached: 63/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Netsec Limited
AS45753 · 🇭🇰 Hong Kong
06

Recommendations

Actions taken & recommended

  • IP 112.121.173.122 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

🔎 Directory Scan Defense

IP 112.121.173.122 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 112.121.173.122 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

08

Open Ports & Services

Network reconnaissance data from Shodan. Open ports may indicate running services, misconfigurations, or potential attack surfaces.

OPEN PORTS (1)
PortServiceRiskDescription
80HTTPLowHTTP web server — standard web traffic
DETECTED TECHNOLOGIES
f5:nginx

Data source: Shodan InternetDB. Scanned independently of abuse.mom.

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

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

10

Threat Analysis

112.121.173.122 has been assigned a threat score of 63/100 (High). At this threat level, the IP is considered high risk. Firewall rules should be updated to deny traffic from this source.

The following attack categories were identified:

Path EnumerationRequest Flooding

📊 Threat Analysis

Network traffic from 112.121.173.122, located in Cheung Sha Wan, Hong Kong, operating on the network of Netsec Limited, has been classified as malicious by our automated threat scoring engine. Over a period of 51 days, this IP generated 8 malicious requests, averaging approximately 0.2 requests per day. The address is classified as residential, meaning it likely belongs to an end-user ISP connection. Malicious activity from residential IPs typically indicates device compromise or botnet membership. The dual attack vectors of Path Enumeration combined with Request Flooding indicate a coordinated assault rather than opportunistic scanning. Hong Kong currently accounts for 103 blocked IPs in our database, making it a significant source of malicious traffic. The score of 63/100 warrants active monitoring and rate-limiting. Full blocking is advisable for sensitive systems.

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

20.205.115.105 (280)40.83.92.30 (280)20.24.82.132 (280)23.100.90.148 (280)65.52.160.249 (280)View all →

🏢 Same network: AS45753

148.66.23.106 (108)216.118.251.2 (75)View all →
12

Security Intelligence

💡 HTTP Request Smuggling

Request smuggling exploits differences in how front-end and back-end servers parse HTTP requests. This technique can bypass security controls, poison web caches, and hijack other users sessions by desynchronizing request boundaries.

💡 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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