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CrowdStrike’s faulty update crashed 8.5 million Windows devices, says Microsoft
Here are the details about what went wrong on Friday.
CrowdStrike’s faulty update caused a worldwide tech disaster that affected 8.5 million Windows devices on Friday, according to Microsoft. Updates to Channel Files are a normal part of the sensor’s operation and occur several times a day in response to novel tactics, techniques, and procedures discovered by CrowdStrike. CrowdStrike explained that the file is not a kernel driver but is responsible for “how Falcon evaluates named pipe1 execution on Windows systems.” Security researcher and Objective See founder Patrick Wardle says that the explanation aligns with the earlier analysis he and others provided about the cause of the crash, as the problem file “C-00000291- “triggered a logic error that resulted in an OS crash” (via CSAgent.sys).”
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