ABUSE.MOM
THREAT REPORT

IP Threat Report
20.100.173.28

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-07-30 00:53:53
First seen: 2026-07-27 06:38:11
Last seen: 2026-07-30 00:53:26
280

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 280/100. Total malicious requests observed: 789.

BURSTDANGER_PATHRATIO_404REDIRECT_PROBEUA_SUS
01

Geolocation & Classification

IP Address
20.100.173.28
Type
Hosting
Country
🇳🇴 Norway
City
Lorenskog
ISP
Microsoft Corporation
Organization
Microsoft Azure Cloud (norwaye)
Autonomous System
AS8075 Microsoft Corporation
Hit Count
789
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
404 ratio >= 60%Majority of requests returned 404 — enumeration+25
Burst 105/10sAbnormally fast request rate — automated scanning+35
Burst 112/10sAbnormally fast request rate — automated scanning+35
Burst 113/10sAbnormally fast request rate — automated scanning+35
Burst 114/10sAbnormally fast request rate — automated scanning+35
Burst 117/10sAbnormally fast request rate — automated scanning+35
Burst 118/10sAbnormally fast request rate — automated scanning+35
Burst 123/10sAbnormally fast request rate — automated scanning+35
Burst 124/10sAbnormally fast request rate — automated scanning+35
Burst 140/10sAbnormally fast request rate — automated scanning+35
Burst 141/10sAbnormally fast request rate — automated scanning+35
Burst 143/10sAbnormally fast request rate — automated scanning+35
Burst 144/10sAbnormally fast request rate — automated scanning+35
Burst 145/10sAbnormally fast request rate — automated scanning+35
Burst 147/10sAbnormally fast request rate — automated scanning+35
Burst 149/10sAbnormally fast request rate — automated scanning+35
Burst 161/10sAbnormally fast request rate — automated scanning+35
Burst 165/10sAbnormally fast request rate — automated scanning+35
Burst 34/2sAbnormally fast request rate — automated scanning+35
Burst 35/2sAbnormally fast request rate — automated scanning+35
Burst 37/2sAbnormally fast request rate — automated scanning+35
Burst 39/2sAbnormally fast request rate — automated scanning+35
Burst 40/2sAbnormally fast request rate — automated scanning+35
Burst 41/2sAbnormally fast request rate — automated scanning+35
Burst 43/2sAbnormally fast request rate — automated scanning+35
Burst 44/2sAbnormally fast request rate — automated scanning+35
Burst 45/2sAbnormally fast request rate — automated scanning+35
Burst 46/2sAbnormally fast request rate — automated scanning+35
Burst 47/2sAbnormally fast request rate — automated scanning+35
Burst 49/2sAbnormally fast request rate — automated scanning+35
Burst 50/2sAbnormally fast request rate — automated scanning+35
Burst 51/2sAbnormally fast request rate — automated scanning+35
Burst 53/2sAbnormally fast request rate — automated scanning+35
Burst 63/10sAbnormally fast request rate — automated scanning+35
Burst 83/10sAbnormally fast request rate — automated scanning+35
Burst 98/10sAbnormally fast request rate — automated scanning+35
Burst 99/10sAbnormally fast request rate — automated scanning+35
Danger medium hits: 131Medium-risk: admin panels, config files+60
Danger medium hits: 150Medium-risk: admin panels, config files+60
Danger medium hits: 152Medium-risk: admin panels, config files+60
Danger medium hits: 225Medium-risk: admin panels, config files+60
Danger medium hits: 228Medium-risk: admin panels, config files+60
Danger medium hits: 304Medium-risk: admin panels, config files+60
Danger medium hits: 453Medium-risk: admin panels, config files+60
Danger medium hits: 76Medium-risk: admin panels, config files+60
Danger medium hits: 786Medium-risk: admin panels, config files+60
Danger strong hits: 18High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 24High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 33High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 36High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 48High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 56High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 66High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 7High-risk paths: shells, RCE vectors, exploits+100
Danger strong hits: 9High-risk paths: shells, RCE vectors, exploits+100
Probe 302→404Behavioral anomaly detected by automated analysis+20
UA suspiciousBehavioral anomaly detected by automated analysis+15
Σ = 2775
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

2026-07-27 06:38:11
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), 404 ratio >= 60% (+25), Burst 105/10s (+35)
2026-07-30 00:53:26
Last malicious request observed
Total score reached: 280/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Microsoft Corporation
AS8075 · 🇳🇴 Norway
06

Recommendations

Actions taken & recommended

  • IP 20.100.173.28 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 20.100.173.28 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🌊 Traffic Flood Defense

IP 20.100.173.28 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

🤖 Bot Detection

Address UA spoofing from 20.100.173.28: maintain blocklist of known malicious UA strings, require consistent UA across sessions, implement TLS fingerprinting.

09

Blacklist Status (DNSBL)

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

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

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

10

Threat Analysis

20.100.173.28 has been assigned a threat score of 280/100 (Critical). With this rating, the IP falls into the critical severity bracket — among the most dangerous addresses in our monitoring database.

The following attack categories were identified:

Path EnumerationRequest FloodingUser-Agent Anomaly

📊 Threat Analysis

Our monitoring infrastructure has identified 20.100.173.28, geolocated to Lorenskog, Norway, operating on the network of Microsoft Corporation, as a source of suspicious network activity. During its 2-day observation window, we recorded 789 hostile requests from this IP — roughly 394.5 per day on average. Classified as a hosting IP, this address likely runs on a rented server or cloud instance. Attackers prefer datacenter IPs for their high bandwidth and disposable nature. The combination of 3 distinct attack vectors indicates a sophisticated, multi-pronged threat actor deploying automated tools that probe multiple attack surfaces simultaneously. A score of 280/100 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

🇳🇴 Top threats from Norway

20.100.169.229 (280)20.251.58.190 (280)51.120.70.186 (280)51.120.79.193 (280)51.120.83.160 (280)View all →

🏢 Same network: AS8075

20.226.81.88 (280)20.48.26.146 (280)191.234.169.57 (280)52.237.113.70 (280)104.208.65.18 (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.

💡 Insider Threat Indicators

Insider threats — whether malicious or negligent — account for a significant percentage of data breaches. Behavioral analytics detecting unusual access patterns, data downloads, and privilege escalation help identify insider risks before damage occurs.

🔍 Check Any IP Address

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