[Dwedit]

Anubis is actually not a cat. The original Egyptian deity is a god of death, and has a canine head. Anime catgirls and dog girls can look similar at first glance.

[gabeio]

I believe they are referencing the person who wrote the program, not the name itself.

[Dwedit]

More likely to be referencing the mascot character who appears on your screen when you visit a protected page.