ABUSE.MOM
THREAT REPORT

IP Threat Report
107.172.55.81

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-05-21 21:04:33
First seen: 2026-04-23 13:00:05
Last seen: 2026-05-12 10:00:04
130

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 130/100. Total malicious requests observed: 7.

DANGER_PATHRATIO_404REDIRECT_PROBEREFERERUA_CHANGED
01

Geolocation & Classification

IP Address
107.172.55.81
Type
Residential
Country
🇺🇸 United States
City
Los Angeles
ISP
HostPapa
Organization
IP Now LLC
Autonomous System
AS36352 HostPapa
Hit Count
7
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: 12Medium-risk: admin panels, config files+60
Σ = 250
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

2026-04-23 13:00:05
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)
2026-05-12 10:00:04
Last malicious request observed
Total score reached: 130/100
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 107.172.55.81 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 107.172.55.0/24
  • Report abuse to the network provider via their abuse contact
  • Ensure sensitive files (.env, .git, backups) are not accessible from the web

🔎 Path Enumeration Protection

Block scanning from 107.172.55.81: rate-limit 404 responses per IP, deploy a honeypot 404 page, ensure no backup files are web-accessible.

🤖 User-Agent Anomaly Defense

IP 107.172.55.81 shows suspicious UA behavior. Block empty User-Agent requests. Implement JavaScript-based bot detection for sensitive endpoints.

07

Neighbors in 107.172.55.0/24

Other blocked IPs from the same /24 subnet — indicates systematic abuse from this network range.

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
3128UnknownLowService on port 3128
8000UnknownLowService on port 8000
8080HTTP-AltLowHTTP alternative port — often used for admin panels or proxies
21242UnknownLowService on port 21242
52931UnknownLowService on port 52931
KNOWN VULNERABILITIES (CVE) (59)
CVE IDLink
CVE-2026-33515NVD →
CVE-2021-31806NVD →
CVE-2018-19131NVD →
CVE-2020-15049NVD →
CVE-2023-46728NVD →
CVE-2019-12522NVD →
CVE-2021-28116NVD →
CVE-2020-15810NVD →
CVE-2020-11945NVD →
CVE-2022-41318NVD →
CVE-2020-24606NVD →
CVE-2019-12520NVD →
CVE-2019-12519NVD →
CVE-2020-8449NVD →
CVE-2019-12523NVD →
CVE-2020-25097NVD →
CVE-2018-1000024NVD →
CVE-2023-46846NVD →
CVE-2021-31807NVD →
CVE-2019-12521NVD →
CVE-2020-8517NVD →
CVE-2016-10003NVD →
CVE-2016-10002NVD →
CVE-2018-1000027NVD →
CVE-2025-59362NVD →
+34 more

🔴 This host has 59 known CVEs associated with its exposed services. This volume strongly suggests severely outdated software. Review each CVE in the NVD database.

DETECTED TECHNOLOGIES
squid-cache:squid:3.5.20
Hostnames: 107-172-55-81-host.colocrossing.com
PTR: 107-172-55-81-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
ix.dnsbl.manitu.net
✓ Clean
dnsbl.sorbs.net
✓ Clean
zen.spamhaus.org
✓ Clean
bl.spamcop.net
✓ Clean
dnsbl-1.uceprotect.net
✓ Clean
b.barracudacentral.org
✓ Clean
truncate.gbudb.net
✓ Clean
psbl.surriel.com

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

10

Threat Analysis

107.172.55.81 has been assigned a threat score of 130/100 (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 Anomaly

📊 Threat Analysis

107.172.55.81 is registered in Los Angeles, United States, operating on the network of HostPapa. This IP first appeared in our threat feeds after triggering multiple behavioral detection signatures. Our sensors captured 7 malicious requests from this address across a 18-day span, reflecting a sustained attack cadence of ~0.4 requests per day. This residential IP is likely a compromised consumer device. Home routers and IoT equipment with default credentials are prime targets for botnet operators. The dual attack vectors of Path Enumeration combined with User-Agent Anomaly indicate a coordinated assault rather than opportunistic scanning. With 201 flagged addresses, United States represents a significant presence in our threat database. At 130/100, 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

23.94.40.119 (318)172.245.95.40 (280)23.94.28.183 (255)192.227.215.35 (255)172.245.214.62 (245)View all →
12

Security Intelligence

💡 Server-Side Request Forgery (SSRF)

SSRF attacks trick servers into making requests to internal resources that should not be publicly accessible. This can expose cloud metadata endpoints, internal APIs, and private network services, potentially leading to full infrastructure compromise.

💡 Command Injection Techniques

Command injection occurs when attackers insert operating system commands through application inputs. Successful exploitation grants direct server access, enabling data theft, malware installation, and lateral movement across networks.

🔍 Check Any IP Address

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