As part of the devs farewell message on their site, they have included malicious code to make each visitor sends 2,000 requests to the dbzer0 servers in an attempt to DDOS and take the instance offline.
Who wrote these regex? They are terrible:
- We've got a capture-group for the numbers (the
()means we're saving that part for later). Are we planning to do something with the mlg numbers? Why don't we care about the mmmberry numbers? - The capture is one or more numbers, but then it's an optional group. Write
([0-9]*)instead - We match
mlgandmlg1but notmlgabecause we anchor to the end ($). But not on mmmberry--that one will match "mmmberry5" (but we don't track the number!) but also "mmmberry_is_the_worst" so the enemy of my enemy is also my enemy because they share a prefix
Maybe mlg has sock-puppet accounts mlg1, mlg2, but never MLG?