checking whois for each of those domains, my first thought is I sure hope Key-Systems didn't get owned :|

EDIT: On a sidenote:If this[1] is true, looks like the attacker may have compromised another registrar that perl.com used (Network Solutions), moved domain to another registrar, than KS. Still a big concern though

[1] https://nitter.net/DInvesting/status/1354778895749419013