Spam Origin Forecasting for Preemptive Domain Blocking

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Solution Overview

Problem

Conventional anti-spam measures are reactive and ineffective against persistent spammers who switch domains and alter email content to evade reputation and content-based blocking, leading to disrupted workflows and increased network traffic.

Innovation Solution

An anti-spam system that analyzes past spam campaigns to identify homogeneous features, predicts future spam origins by compiling domain name records, and configures mail proxy servers to preemptively block emails from predicted spam origins using domain matching expressions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If reputation-based blocking is used, then spam filtering is achieved, but spammers can easily evade by switching domains and cloud providers

Engineering Contradiction:

Improvespam blocking effectivenessVSAvoidspammer evasion capability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary actions by analyzing past spam campaigns to identify homogeneous features and predict future spam origins before spam is sent. Domain lists are generated in advance and configured on mail proxy servers to block predicted spam campaigns preemptively, rather than reacting after spam is detected

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors and analyzes spam campaigns, extracting homogeneous features from email samples. This feedback loop enables the system to update predictions and domain lists dynamically, improving blocking effectiveness while adapting to new spam patterns

Inventive Principle:

Principle #23Feedback

2Reliability

If content-based blocking is used, then spam detection is achieved, but automation can alter phrases to defeat content analysis

Engineering Contradiction:

Improvespam detection accuracyVSAvoidspam content variation

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system extracts homogeneous features from email samples that are independent of specific content variations. By focusing on extracted features rather than direct content matching, the system achieves reliable spam detection without being defeated by automated phrase alterations

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system changes the detection parameters from content-based matching to feature-based analysis. By identifying homogeneous features across spam campaigns and using these as detection criteria, the system maintains detection accuracy while being insensitive to content variations and phrase alterations

Inventive Principle:

Principle #35Parameter changes

3Reliability

If IP address blocking based on country is used, then some spam is blocked, but spammers can rent servers in other countries to evade blocking

Engineering Contradiction:

Improvespam blocking rateVSAvoidspammer location switching

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system performs preliminary analysis of spam campaigns to identify origin patterns before spam is sent. By predicting future spam origins and configuring block lists in advance, the system blocks spam at the source regardless of the spammer's current location or server rental choices

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system transitions from geographic-based blocking (country/IP level) to domain-level blocking based on predicted origins. This dimensional shift allows blocking to follow the spammer's operational patterns rather than their physical location, making location switching ineffective

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

4Reliability

If reactive spam blocking is used, then known spam is filtered, but new spam campaigns from unblocked domains reach mail servers causing network congestion

Engineering Contradiction:

Improveknown spam filteringVSAvoidnetwork congestion and mail server workload

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The system performs preliminary analysis to predict future spam origins and configures block lists before spam campaigns are launched. This preemptive blocking prevents new spam from reaching mail servers, eliminating network congestion and workload before they occur

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system takes preliminary anti-action by identifying and blocking predicted spam origins before spam can be sent. This prevents the harmful effect of network congestion and mail server overload by stopping spam campaigns at their source in advance

Inventive Principle:

Principle #9Preliminary anti-action

Data Source

PatentUS20250350571A1SPAM forecasting and preemptive blocking of predicted SPAM origins

Publication Date: 2025.11.13 STATE FARM MUTAL AUTOMOBILE INSURANCE COMPANY

AI summary

A system is configured to analyze large volumes of sample emails from past spam campaigns to identify homogeneous features, as well as systematically heterogeneous features, which spam originators fail to obfuscate. By extracting origin-referencing features therefrom, the system predicts that spam originators will mass-acquire domain names at certain registrars for the purpose of future spam floods, and repeatedly and periodically analyzes domain name records on an automated basis to identify domain names which will imminently be utilized as spam origins. Since it may be necessary to block tens of thousands of domains preemptively to avert spam floods, performance of such large-scale analysis by a computing system allows spam origins to be predicted on a timely basis within a day of spam floods being deployed, and domain lists to be generated and configured responsively in time to prevent the spam floods.