this post was submitted on 19 Jul 2024
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Here's the fix: (or rather workaround, released by CrowdStrike) 1)Boot to safe mode/recovery 2)Go to C:\Windows\System32\drivers\CrowdStrike 3)Delete the file matching "C-00000291*.sys" 4)Boot the system normally
It's disappointing that the fix is so easy to perform and yet it'll almost certainly keep a lot of infrastructure down for hours because a majority of people seem too scared to try to fix anything on their own machine (or aren't trusted to so they can't even if they know how)
They also gotta get the fix through a trusted channel and not randomly on the internet. (No offense to the person that gave the info, it’s maybe correct but you never know)
Yeah, and it's unknown if CS is active after the workaround or not (source: hackernews commentator)
True, but knowing what the fix might be means you can Google it and see what comes back. It was on StackOverflow for example, but at the time of this comment has been taken offline for moderation - whatever that means.
Meh. Even if it bricked crowdstrike instead of helping, you can just restore the file you deleted. A file in that folder can't brick a windows system.
Yeah and a lot of corpo VPNs are gonna be down from this too.
This sort of fix might not be accessible to a lot of employees who don't have admin access on their company laptops, and if the laptop can't be accessed remotely by IT then the options are very limited. Trying to walk a lot of nontechnical users through this over the phone won't go very well.
Yup, that's me. We booted into safe mode, tried navigating into the CrowdStrike folder and boom: permission denied.
Half our shit can't even boot into safe mode because it's encrypted and we don't have the keys rofl
If you don't have the keys, what the hell are you doing? We have bitlocker enabled and we have a way to get the recovery key so it's not a problem. Just a huge pain in the ass.
I went home lol. Some other poor schmucks are probably gonna reformat the computers.
Might seem easy to someone with a technical background. But the last thing businesses want to be doing is telling average end users to boot into safe mode and start deleting system files.
If that started happening en masse we would quickly end up with far more problems than we started with. Plenty of users would end up deleting system32 entirely or something else equally damaging.
I do IT for some stores. My team lead briefly suggested having store managers try to do this fix. I HARD vetoed that. That's only going to do more damage.
It might not even be that. A lot of places have many servers (and even more virtual servers) running crowdstrike. Some places also seem to have it on endpoints too.
That's a lot of machines to manually fix.
That is unfortunate but also leads me to a different question
Why do people like windows server? I've had to use it a couple of times for work and although it's certainly better than just using the desktop windows it's so heavy compared to running something like Debian
In our case, the fact we were using windows server actually made it a worse experience for customers aswell because the hardware was not up to it (because budget constraints) so it just chugged and slowed down everything making it a terrible experience for everyone involved (not to mention how often it'd have to be rebooted because a service wouldn't restart)
And people need to travel to remote machines to do this in person
You can do it over the phone. I just did a few dozen this morning and it was relatively easy.
yeah, sometimes that's just not an option...
I wouldn’t fix it if it’s not my responsibly at work. What if I mess up and break things further?
When things go wrong, best to just let people do the emergency process.
I'm on a bridge still while we wait for Bitlocker recovery keys, so we can actually boot into safemode, but the Bitkocker key server is down as well...
Gonna be a nice test of proper backups and disaster recovery protocols for some organisations
Chaos Monkey test
Man, it sure would suck if you could still get to safe mode from pressing f8. Can you imagine how terrible that'd be?
You hold down Shift while restarting or booting and you get a recovery menu. I don’t know why they changed this behaviour.
That was the dumbest thing to learn this morning.
A driver failure, yeesh. It always sucks to deal with it.
Not that easy when it's a fleet of servers in multiple remote data centers. Lots of IT folks will be spending their weekend sitting in data center cages.