ABUSE.MOM
THREAT REPORT

IP Threat Report
73.150.34.73

ABUSE.MOM — BEHAVE OR GET EXPOSED

Generated: 2026-09-13 02:30:15
First seen: 2026-09-04 04:42:19
Last seen: 2026-09-06 01:05:25
65

⛔ Verdict: BLOCK

This IP address has been classified as a source of malicious automated activity. Threat score: 65/100. Total malicious requests observed: 66.

BOT_UAUA_CHANGED
01

Geolocation & Classification

IP Address
73.150.34.73
Type
Residential
Country
🇺🇸 United States
City
Plainfield
ISP
Comcast Cable Communications
Organization
Comcast IP Services, L.L.C.
Autonomous System
AS7922 Comcast Cable Communications, LLC
Hit Count
66
02

Detection Signatures

SignatureDescriptionPointsSeverity
UA bot: curlKnown bot/crawler User-Agent detected+40
UA changedMultiple User-Agents — bot rotation technique+25
Σ = 65
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

2026-09-04 04:42:19
First malicious request detected
IP entered monitoring from server access logs
During observation
Multiple detection signatures triggered
UA bot: curl (+40), UA changed (+25)
2026-09-06 01:05:25
Last malicious request observed
Total score reached: 65/100
Next cycle
IP blocked — all subsequent requests denied (HTTP 403)
Added to blocklist automatically
05

Network Provider

Comcast Cable Communications
AS7922 · 🇺🇸 United States
06

Recommendations

Actions taken & recommended

  • IP 73.150.34.73 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

🤖 Bot Detection

Address UA spoofing from 73.150.34.73: 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
b.barracudacentral.org
✓ Clean
cbl.abuseat.org
✓ Clean
psbl.surriel.com
✓ Clean
zen.spamhaus.org
✓ Clean
bl.blocklist.de
✓ Clean
spam.dnsbl.sorbs.net
✓ Clean
dnsbl.dronebl.org

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

10

Threat Analysis

73.150.34.73 has been assigned a threat score of 65/100 (High). This classifies it as a high-severity threat. Proactive blocking is recommended for sensitive infrastructure.

The following attack categories were identified:

User-Agent Anomaly

📊 Threat Analysis

Our monitoring infrastructure has identified 73.150.34.73, geolocated to Plainfield, United States, operating on the network of Comcast Cable Communications, as a source of suspicious network activity. Our sensors captured 66 malicious requests from this address across a 1-day span, reflecting a sustained attack cadence of ~66 requests per day. Operating from a residential network, this IP may represent a compromised home gateway or IoT device that has been drafted into a larger attack infrastructure. The IP exhibits User-Agent manipulation, switching between different browser identities or sending empty headers. With 158 flagged addresses, United States represents a significant presence in our threat database. At 65/100, this IP presents a meaningful threat. Implement rate limiting with escalation to blocking.

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

🇺🇸 Top threats from United States

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🏢 Same network: AS7922

73.109.28.246 (175)174.171.100.226 (165)73.206.128.139 (140)73.75.146.146 (130)73.157.165.158 (130)View all →
12

Security Intelligence

💡 HTTP Header Analysis for Threat Detection

Examining HTTP headers beyond User-Agent reveals attack tools and automated scripts. Missing standard headers, unusual ordering, non-standard values, and inconsistencies with claimed client identity all serve as reliable detection signals.

💡 Prototype Pollution Attacks

Prototype pollution manipulates JavaScript object prototypes to inject properties that affect all objects in an application. This can lead to denial of service, property injection, and in some cases remote code execution in Node.js applications.

🔍 Check Any IP Address

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