CrowdStrike releases the details behind Microsoft Windows outage

Red Section Separator credit @ ndtv

Cream Section Separator The IT outage on July 19 started when the CrowdStrike software update triggered a logic error. This led to a system crash and caused the ‘blue screen of death’ that many saw on their affected devices. credit @ ndtv

[{"selector":"#anim-87035f4f-b041-4ecf-b979-ae18e2e76d32 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-25.740443798949247%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":4000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-34548972-3c0f-4afe-970c-ee73107b4835","keyframes":{"opacity":[0,1]},"delay":250,"duration":2000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Red Section Separator The logic error has since been corrected and systems are returning to normal around the world, said CrowdStrike in a release covering the technical details of the outage. credit @ ndtv

Those affected were largely customers running the Falcon sensor for Windows version 7.11 and above, who were online during certain intervals on July 19.

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The cause of the incident was not a cyberattack, the company stressed.

[{"selector":"#anim-e6855af9-33d6-4df4-a7d7-be33e7f64ff1","keyframes":{"opacity":[0,1]},"delay":250,"duration":2000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Red Section Separator credit @ ndtv

“The update that occurred at 04:09 UTC was designed to target newly observed, malicious named pipes being used by common C2 frameworks in cyberattacks. The configuration update triggered a logic error that resulted in an operating system crash,” noted CrowdStrike.

[{"selector":"#anim-8d83694c-90c0-4bbe-b448-82fc95fdba94 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(20.561634639591652%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":4000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b74ab70b-1777-4943-800d-e5cf15be9a11","keyframes":{"opacity":[0,1]},"delay":600,"duration":2000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] White Line credit @ ndtv

Microsoft earlier said that “Virtual Machines running Windows Client and Windows Server, running the CrowdStrike Falcon agent, may encounter a bug check”.

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The approximate time of impact could have been as early as 9.39 a.m. IST on July 19, when the CrowdStrike update started rolling out.

[{"selector":"#anim-06a23cc6-8dfa-464e-9d8f-2b8aeb4b849e","keyframes":{"opacity":[0,1]},"delay":250,"duration":2000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Red Section Separator credit @ ndtv

To get the latest information about fixing the error and coming back online, users can visit the CrowdStrike website’s blog or support portal. They can also reach out to the company directly.

[{"selector":"#anim-ea5a1725-1393-4b32-94b1-6c91a882b35c","keyframes":{"opacity":[0,1]},"delay":500,"duration":2000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-11baa7a8-2d2f-4694-9fc2-e907bedc72f8","keyframes":{"opacity":[0,1]},"delay":600,"duration":2000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] I just need someone to share this moment... White Line credit @ ndtv

The billionaire owner of X posted a laughing emoji in response to a meme shared on the social-media platform mocking the disruption. The meme's caption read: "Everything else is down, but this app still works."

[{"selector":"#anim-763ac735-a696-410d-b705-1d5ed37867a2","keyframes":{"opacity":[0,1]},"delay":600,"duration":2000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] White Line credit @ ndtv

CrowdStrike releases the details behind Microsoft Windows outage

Those affected were largely customers running the Falcon sensor for Windows version 7.11 and above, who were online during certain intervals on July 19.

The cause of the incident was not a cyberattack, the company stressed.

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“The update that occurred at 04:09 UTC was designed to target newly observed, malicious named pipes being used by common C2 frameworks in cyberattacks. The configuration update triggered a logic error that resulted in an operating system crash,” noted CrowdStrike.

Microsoft earlier said that “Virtual Machines running Windows Client and Windows Server, running the CrowdStrike Falcon agent, may encounter a bug check”.

The approximate time of impact could have been as early as 9.39 a.m. IST on July 19, when the CrowdStrike update started rolling out.

To get the latest information about fixing the error and coming back online, users can visit the CrowdStrike website’s blog or support portal. They can also reach out to the company directly.

The billionaire owner of X posted a laughing emoji in response to a meme shared on the social-media platform mocking the disruption. The meme's caption read: "Everything else is down, but this app still works."

Read more about

CrowdStrike releases the details behind Microsoft Windows outage

Those affected were largely customers running the Falcon sensor for Windows version 7.11 and above, who were online during certain intervals on July 19.

The cause of the incident was not a cyberattack, the company stressed.

Read more about

“The update that occurred at 04:09 UTC was designed to target newly observed, malicious named pipes being used by common C2 frameworks in cyberattacks. The configuration update triggered a logic error that resulted in an operating system crash,” noted CrowdStrike.

Microsoft earlier said that “Virtual Machines running Windows Client and Windows Server, running the CrowdStrike Falcon agent, may encounter a bug check”.

The approximate time of impact could have been as early as 9.39 a.m. IST on July 19, when the CrowdStrike update started rolling out.

To get the latest information about fixing the error and coming back online, users can visit the CrowdStrike website’s blog or support portal. They can also reach out to the company directly.

The billionaire owner of X posted a laughing emoji in response to a meme shared on the social-media platform mocking the disruption. The meme's caption read: "Everything else is down, but this app still works."

Read more about

The approximate time of impact could have been as early as 9.39 a.m. IST on July 19, when the CrowdStrike update started rolling out.