DomCat: A Domain Categorization Tool
Summary
DomCat is a new command-line tool developed in Golang that assists users in identifying expired domains that fit specific categorization criteria. The tool is designed to help find valuable domain names that were previously in use and have become available.
IFF Assessment
This tool can be used by attackers to find expired domains that may still have a good reputation or domain authority, allowing them to host malicious content or phishing sites with a higher chance of bypassing initial detection.
Defender Context
Defenders should be aware of tools like DomCat that can facilitate the acquisition of expired domains for malicious purposes. This technique can be used to host sophisticated phishing sites or distribute malware, making it harder to identify as new, untrusted infrastructure. Monitoring for newly registered or repurposed domains with existing strong SEO or domain authority could be a valuable defensive strategy.