ABUSE.MOM
THREAT REPORT

IP Threat Report
47.90.253.78

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-26 23:07:34
First seen: 2026-05-18 08:00:07
Last seen: 2026-05-24 10:09:09
105

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 105/100. Total malicious requests observed: 239.

BURSTREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
47.90.253.78
Type
Hosting
Country
🇺🇸 United States
City
Charlottesville
ISP
Alibaba.com LLC
Organization
ALICLOUD-US
Autonomous System
AS45102 Alibaba (US) Technology Co., Ltd.
Hit Count
239
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 12/10sAbnormally fast request rate — automated scanning+35
Burst 7/2sAbnormally fast request rate — automated scanning+35
Burst: 12 req / 10sAbnormally fast request rate — automated scanning+35
Burst: 7 req / 2sAbnormally fast request rate — automated scanning+35
Foreign refererReferer from unrelated external domain+10
Foreign referer seenReferer from unrelated external domain+10
UA changedMultiple User-Agents — bot rotation technique+25
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Σ = 210
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

2026-05-18 08:00:07
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 12/10s (+35), Burst 7/2s (+35), Burst: 12 req / 10s (+35)
2026-05-24 10:09:09
Last malicious request observed
Total score reached: 105/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Alibaba.com LLC
AS45102 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 47.90.253.78 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

🌊 Flood / DDoS Mitigation

Implement limit_req_zone in nginx. Deploy CDN with DDoS protection. Configure SYN cookies and connection tracking to throttle 47.90.253.78.

🤖 User-Agent Anomaly Defense

IP 47.90.253.78 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
b.barracudacentral.org
✓ Clean
zen.spamhaus.org

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

10

Threat Analysis

47.90.253.78 has been assigned a threat score of 105/100 (Critical). This is a critical-level threat. Systems administrators should treat this IP as hostile and block all inbound connections without exception.

The following attack categories were identified:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

The address 47.90.253.78 originates from Charlottesville, United States, operating on the network of Alibaba.com LLC. It was identified through automated analysis of incoming network traffic across monitored endpoints. During its 6-day observation window, we recorded 239 hostile requests from this IP — roughly 39.8 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. Two attack patterns were identified (Request Flooding and User-Agent Anomaly), suggesting a semi-automated campaign that targets multiple vulnerabilities. With 102 flagged addresses, United States represents a significant presence in our threat database. A score of 105/100 places this address in the top tier of severity. Block and investigate any historical connections.

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: AS45102

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12

Security Intelligence

💡 DDoS Mitigation Approaches

Distributed denial of service attacks overwhelm infrastructure with traffic volume. Effective mitigation combines always-on traffic scrubbing, anycast network distribution, rate limiting, and the ability to quickly scale absorption capacity during attacks.

💡 Prototype Pollution Attacks

Prototype pollution manipulates JavaScript object prototypes to inject properties that affect all objects in an application. This can lead to denial of service, property injection, and in some cases remote code execution in Node.js applications.

🔍 Check Any IP Address

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