ABUSE.MOM
THREAT REPORT

IP Threat Report
172.255.83.8

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:36:30
First seen: 2026-03-16 19:00:06
Last seen: 2026-05-30 07:33:41
105

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 105/100. Total malicious requests observed: 1001.

DANGER_PATHRATIO_404REDIRECT_PROBEREFERER
01

Geolocation & Classification

IP Address
172.255.83.8
Type
Hosting
Country
🇺🇸 United States
City
Dallas
ISP
Leaseweb USA, Inc., Ubiquity Server Solutions Dallas
Organization
Nobis Technology Group
Autonomous System
AS394380 Leaseweb USA, Inc.
Hit Count
1001
02

Detection Signatures

SignatureDescriptionPointsSeverity
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Danger medium hits: 10Medium-risk: admin panels, config files+60
Danger medium hits: 5Medium-risk: admin panels, config files+50
Danger medium hits: 6Medium-risk: admin panels, config files+60
Foreign refererReferer from unrelated external domain+10
Foreign referer seenReferer from unrelated external domain+10
Probe 302→404Behavioral anomaly detected by automated analysis+20
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Σ = 245
03

Observed Activity

Reconstructed HTTP requests from server access logs. Target domains redacted for security.

[redacted]
GET
/
200
Requests shown: 1 · HTTP 404: 0 · Dangerous patterns: 0

* Typical request patterns for detected signatures. Actual target domains are redacted.

04

Timeline

2026-03-16 19:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
404 ratio 40-60% (+15), Danger medium hits: 10 (+60), Danger medium hits: 5 (+50)
2026-05-30 07:33:41
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

Leaseweb USA, Inc., Ubiquity Server Solutions Dallas
AS394380 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 172.255.83.8 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 172.255.83.0/24
  • 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 172.255.83.8 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

07

Neighbors in 172.255.83.0/24

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

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

10

Threat Analysis

172.255.83.8 has been assigned a threat score of 105/100 (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 Enumeration

📊 Threat Analysis

Network traffic from 172.255.83.8, located in Dallas, United States, operating on the network of Leaseweb USA, Inc., Ubiquity Server Solutions Dallas, has been classified as malicious by our automated threat scoring engine. During its 74-day observation window, we recorded 1,001 hostile requests from this IP — roughly 13.5 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 IP exhibits directory enumeration behavior, systematically requesting non-existent paths to discover hidden files and misconfigured resources. Our records show 119 malicious IPs originating from United States, positioning it as a significant contributor to global threat activity. At 105/100, 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: AS394380

172.241.118.51 (165)172.241.118.54 (165)209.58.157.123 (140)172.255.83.134 (130)172.241.112.217 (105)View all →
12

Security Intelligence

💡 XML External Entity (XXE) Attacks

XXE vulnerabilities in XML parsers allow attackers to read local files, perform SSRF, and execute denial of service attacks. Many legacy applications and APIs remain vulnerable to XXE due to insecure default XML parser configurations.

💡 Multi-Factor Authentication Importance

MFA dramatically reduces the effectiveness of credential-based attacks. Even when passwords are compromised through phishing or data breaches, the additional authentication factor prevents unauthorized access in the vast majority of cases.

🔍 Check Any IP Address

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