Rating:
Persist was the forensics challenge released on day 3, where we’re given a memory dump of Santa’s computer, which reportedly has a “slow boot time and a blue window popping up for a split second during startup”. We’ll take this as a cue to investigate AutoRun Persistence in Windows, and find a Volatility plugin called “winesap” which will show us a number of registry keys, one of which that contains a suspicious PowerShell script that we can decode to get the flag. Refer to the writeup here for more detail.