Speaking as someone who manages CrowdStrike in my company, we do stagger updates and turn off all the automatic things we can.
This channel file update wasn’t something we can turn off or control. It’s handled by CrowdStrike themselves, and we confirmed that in discussions with our TAM and account manager at CrowdStrike while we were working on remediation.
Yes, CrowdStrike says they don’t need to do conventional AV definitions updates, but the channel file updates sure seem similar to me.
The file they pushed out consisted of all zeroes, which somehow corrupted their agent and caused the BSOD. I wasn’t on the meeting where they explained how this happened to my company; I was one of the people woken up to deal with the initial issue, and they explained this later to the rest of my team and our leadership while I was catching up on missed sleep.
I would have expected their agent to ignore invalid updates, which would have prevented this whole thing, but this isn’t the first time I’ve seen examples of bad QA and/or their engineering making assumptions about how things will work. For the amount of money they charge, their product is frustratingly incomplete. And asking them to fix things results in them asking you to submit your request to their Ideas Portal, so the entire world can vote on whether it’s a good idea, and if enough people vote for it they will “consider” doing it. My company spends a fortune on their tool every year, and we haven’t been able to even get them to allow non-case-sensitive searching, or searching for a list of hosts instead of individuals.