ABUSE.MOM
THREAT REPORT

IP Threat Report
51.107.71.145

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-08 04:31:57
First seen: 2026-08-03 05:09:04
Last seen: 2026-08-09 04:10:38
245

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 245/100. Total malicious requests observed: 241.

BURSTDANGER_PATHUA_SUS
01

Geolocation & Classification

IP Address
51.107.71.145
Type
Hosting
Country
🇨🇭 Switzerland
City
Zurich
ISP
Microsoft
Organization
Microsoft Azure Cloud (switzerlandnorth)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
241
02

Detection Signatures

SignatureDescriptionPointsSeverity
Burst 103/10sAbnormally fast request rate — automated scanning+35
Burst 40/2sAbnormally fast request rate — automated scanning+35
Danger medium hits: 392Medium-risk: admin panels, config files+60
Danger medium hits: 465Medium-risk: admin panels, config files+60
Danger strong hits: 24High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 40High-risk paths: shells, RCE vectors, exploits+100
UA suspiciousBehavioral anomaly detected by automated analysis+15
Σ = 405
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

2026-08-03 05:09:04
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Burst 103/10s (+35), Burst 40/2s (+35), Danger medium hits: 392 (+60)
2026-08-09 04:10:38
Last malicious request observed
Total score reached: 245/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft
AS8075 · 🇨🇭 Switzerland
06

Recommendations

Actions taken & recommended

  • IP 51.107.71.145 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 51.107.71.0/24
  • 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 51.107.71.145.

🤖 Bot Detection

Address UA spoofing from 51.107.71.145: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

07

Neighbors in 51.107.71.0/24

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.

✓ Clean
zen.spamhaus.org
✓ Clean
cbl.abuseat.org
✓ Clean
bl.blocklist.de
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
b.barracudacentral.org
✓ Clean
dnsbl.dronebl.org
✓ Clean
psbl.surriel.com
✓ Clean
bl.spamcop.net

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

10

Threat Analysis

51.107.71.145 has been assigned a threat score of 245/100 (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:

Request FloodingUser-Agent Anomaly

📊 Threat Analysis

IP address 51.107.71.145 has been traced to Zurich, Switzerland, operating on the network of Microsoft. Our threat detection systems have flagged this address based on observed malicious behavior patterns. The address has been active for 5 days in our monitoring system, producing 241 flagged requests at a rate of ~48.2/day. This address belongs to a datacenter or cloud hosting provider. Hosting IPs are frequently leveraged by threat actors who rent cheap VPS instances specifically for conducting attacks. The dual attack vectors of Request Flooding combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. Our records show 112 malicious IPs originating from Switzerland, positioning it as a significant contributor to global threat activity. At 245/100, 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

🇨🇭 Top threats from Switzerland

34.65.117.95 (298)34.65.167.1 (288)20.203.149.15 (280)20.250.28.140 (280)20.250.9.235 (280)View all →

🏢 Same network: AS8075

68.155.155.199 (320)20.127.136.245 (318)20.151.200.44 (315)51.103.130.248 (280)20.203.205.107 (280)View all →
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.

💡 Directory Traversal Attacks

Path traversal attacks attempt to access files outside the intended directory by manipulating file path references. Attackers use sequences like ../ to reach sensitive system files such as /etc/passwd or application configuration files.

🔍 Check Any IP Address

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