Threat actors often register domains in bulk using shared registrars, emails, or patterns to support short-lived campaigns.
Scenario
You observe suspicious activity involving newly registered domains with privacy-protected Whois but shared infrastructure signals (e.g., same nameservers or registrar).
Investigation Steps
Start with a Seed Indicator:
Use a known abusive registrar or email domain (e.g., from threat intel).
Query WHOIS Search:
Navigate to WHOIS Data > WHOIS Search.
Add conditions:
Registrar contains "abusive-registrar-example.com"
created > "recent-date"
email contains "@disposable-provider.com"
Search and export results for clustering.
Validate with WHOIS History:
Select suspicious domains from the results.
Check WHOIS History for rapid changes (e.g., frequent registrant/email updates indicating burner use).
Look for nameserver reputation scores signaling abuse.
Outcome
Discover clusters of recently registered domains sharing abuse indicators, allowing proactive blocking and campaign disruption.
Benefits: Detect bulk registration patterns early, even with privacy services, to prevent phishing, malware distribution, or C2 setup.