ABUSE.MOM
THREAT REPORT

IP Threat Report
165.154.172.88

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:18:24
First seen: 2026-03-18 22:00:10
Last seen: 2026-04-27 20:00:06
125

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 125/100. Total malicious requests observed: 5.

BOT_UAUA_CHANGEDRATIO_404BURSTREFERER
01

Geolocation & Classification

IP Address
165.154.172.88
Type
Hosting
Country
🇺🇸 United States
City
Los Angeles
ISP
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Organization
Ucloud Information Technology
Autonomous System
AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Hit Count
5
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: Go-http-clientKnown bot/crawler User-Agent detected+40
UA changed for same IPMultiple User-Agents — bot rotation technique+25
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Foreign referer seenReferer from unrelated external domain+10
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Σ = 150
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

2026-03-18 22:00:10
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: Go-http-client (+40), UA changed for same IP (+25), 404 ratio 40-60% (+15)
2026-04-27 20:00:06
Last malicious request observed
Total score reached: 125/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
AS135377 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 165.154.172.88 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 165.154.172.0/24
  • 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 165.154.172.88: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

🔎 Directory Scan Defense

IP 165.154.172.88 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 165.154.172.88 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

07

Neighbors in 165.154.172.0/24

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

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

10

Threat Analysis

165.154.172.88 has been assigned a threat score of 125/100 (Critical). This represents a critical risk level. Our detection systems have flagged multiple high-confidence indicators of malicious intent from this address.

The following attack categories were identified:

User-Agent AnomalyPath EnumerationRequest Flooding

📊 Threat Analysis

Threat intelligence analysis has linked 165.154.172.88 to malicious activity originating from Los Angeles, United States, operating on the network of UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED. The address has been under observation since its initial detection. During its 39-day observation window, we recorded 5 hostile requests from this IP — roughly 0.1 per day on average. Operating from datacenter infrastructure, this IP is typical of addresses used in organized attack operations. Cloud and VPS providers are commonly exploited as launching platforms for automated scanning. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. United States currently accounts for 114 blocked IPs in our database, making it a significant source of malicious traffic. At 125/100, this is an extremely high-risk address. All traffic should be considered hostile.

This IP belongs to a hosting or data center provider. Malicious traffic from hosting infrastructure often originates from compromised VPS instances, rented servers used for scanning campaigns, or abused free-tier cloud accounts. Hosting providers typically respond to abuse reports within 24-72 hours.

11

Related Threats

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🏢 Same network: AS135377

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12

Security Intelligence

💡 TLS Fingerprinting (JA3/JA4)

TLS fingerprinting creates unique identifiers based on how clients negotiate encrypted connections. The JA3 and JA4 methods generate hashes from TLS ClientHello parameters, enabling identification of specific tools and malware regardless of IP address changes.

💡 DNS-Based Threat Detection

Monitoring DNS queries reveals malicious activity including command-and-control communication, data exfiltration through DNS tunneling, and connections to known malicious domains. DNS is often the first indicator of compromise in network forensics.

🔍 Check Any IP Address

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