ABUSE.MOM
THREAT REPORT

IP Threat Report
198.46.169.21

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-30 07:07:03
First seen: 2026-03-20 21:00:06
Last seen: 2026-04-04 14:00:05
165

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 165/100. Total malicious requests observed: 4.

DANGER_PATHRATIO_404REDIRECT_PROBEREFERERUA_CHANGEDBURST
01

Geolocation & Classification

IP Address
198.46.169.21
Type
Residential
Country
🇺🇸 United States
City
Buffalo
ISP
HostPapa
Organization
Alexe Marian Marius
Autonomous System
AS36352 HostPapa
Hit Count
4
02

Detection Signatures

SignatureDescriptionPointsSeverity
Danger medium hits: 8Medium-risk: admin panels, config files+60
404 ratio 40-60%Majority of requests returned 404 — enumeration+15
Probe pattern 302->404 same pathBehavioral anomaly detected by automated analysis+20
Foreign referer seenReferer from unrelated external domain+10
Danger medium hits: 6Medium-risk: admin panels, config files+60
UA changed for same IPMultiple User-Agents — bot rotation technique+25
Danger medium hits: 14Medium-risk: admin panels, config files+60
Burst: 5 req / 2sAbnormally fast request rate — automated scanning+35
Σ = 285
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

2026-03-20 21:00:06
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
Danger medium hits: 8 (+60), 404 ratio 40-60% (+15), Probe pattern 302->404 same path (+20)
2026-04-04 14:00:05
Last malicious request observed
Total score reached: 165/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

HostPapa
AS36352 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 198.46.169.21 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 198.46.169.21 is enumerating directories. Configure fail2ban apache-404 jail after 10+ 404 errors. Disable directory listings. Normalize all 404 responses.

🤖 User-Agent Anomaly Defense

IP 198.46.169.21 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

🌊 Traffic Flood Defense

IP 198.46.169.21 is generating excessive traffic. Limit connections per source IP. Enable geographic blocking if traffic from this region is unexpected.

08

Open Ports & Services

Network reconnaissance data from Shodan. Open ports may indicate running services, misconfigurations, or potential attack surfaces.

OPEN PORTS (6)
PortServiceRiskDescription
80HTTPLowHTTP web server — standard web traffic
4444UnknownLowService on port 4444
7777UnknownLowService on port 7777
36505UnknownLowService on port 36505
44444UnknownLowService on port 44444
55555UnknownLowService on port 55555
KNOWN VULNERABILITIES (CVE) (8)
CVE IDLink
CVE-2019-9516NVD →
CVE-2019-20372NVD →
CVE-2021-23017NVD →
CVE-2025-23419NVD →
CVE-2019-9511NVD →
CVE-2023-44487NVD →
CVE-2019-9513NVD →
CVE-2021-3618NVD →

🔴 This host has 8 known CVEs associated with its exposed services. Multiple vulnerabilities suggest gaps in patch management. Review each CVE in the NVD database.

DETECTED TECHNOLOGIES
f5:nginx:1.16.0
Hostnames: 198-46-169-21-host.colocrossing.com
PTR: 198-46-169-21-host.colocrossing.com

Data source: Shodan InternetDB. Scanned independently of abuse.mom.

09

Blacklist Status (DNSBL)

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

✓ Clean
dnsbl.sorbs.net
✓ Clean
ix.dnsbl.manitu.net
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
zen.spamhaus.org
✓ 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

198.46.169.21 has been assigned a threat score of 165/100 (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:

Path EnumerationUser-Agent AnomalyRequest Flooding

📊 Threat Analysis

Network traffic from 198.46.169.21, located in Buffalo, United States, operating on the network of HostPapa, has been classified as malicious by our automated threat scoring engine. During its 14-day observation window, we recorded 4 hostile requests from this IP — roughly 0.3 per day on average. The address is classified as residential, meaning it likely belongs to an end-user ISP connection. Malicious activity from residential IPs typically indicates device compromise or botnet membership. The diversity of 3 separate attack methods suggests a comprehensive attack toolkit — likely an automated scanner that tests for vulnerabilities across multiple categories. With 199 flagged addresses, United States represents a significant presence in our threat database. At 165/100, this is an extremely high-risk address. All traffic should be considered hostile.

This IP is classified as residential, suggesting it may belong to a compromised home device, IoT botnet member, or an infected personal computer. Residential IPs involved in attacks often indicate malware infection without the owner's knowledge.

11

Related Threats

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🏢 Same network: AS36352

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12

Security Intelligence

💡 Cross-Site Scripting (XSS) Attacks

XSS attacks inject malicious scripts into web pages viewed by other users. Reflected XSS uses crafted URLs, while stored XSS persists in databases. Both types can steal session cookies, redirect users, or deface websites.

💡 Patch Management Urgency

The window between vulnerability disclosure and exploitation continues to shrink. Critical CVEs are now exploited within hours of publication. Automated patch management, virtual patching through WAFs, and rapid deployment pipelines are essential for timely remediation.

🔍 Check Any IP Address

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