Fixed threshold value from 50 to 0.5

[ripping-at-the-siem]

The threshold was originally 50 but the value of "Deviation" from line 40 returns a value from 0 to 1 not 0 to 100.

Required items, please complete

Change(s):

• Fixed threshold value from 50 to 0.5

Reason for Change(s):

• Line 40 calculates a value where 1.0 is 100%. Current threshold of 50 will only alert if the Deviation is 5000%.

Version Updated:

• yes

Testing Completed:

• Yes

Checked that the validations are passing and have addressed any issues that are present:

• yes

Guidance <- remove section before submitting

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Before submitting this PR please ensure that you have read the following sections and filled out the changes, reason for change and testing complete sections:

Thank you for your contribution to the Microsoft Sentinel Github repo.

Details of the code changes in your submitted PR. Providing descriptions for pull requests ensures there is context to changes being made and greatly enhances the code review process. Providing associated Issues that this resolves also easily connects the reason.

Change(s):

• Updated syntax for XYZ.yaml

Reason for Change(s):

• New schema used for XYZ.yaml
• Resolves ISSUE Add Logstash required version to Readme file #1234

Version updated:

• Yes
• Detections/Analytic Rule templates are required to have the version updated

The code should have been tested in a Microsoft Sentinel environment that does not have any custom parsers, functions or tables, so that you validate no incorrect syntax and execution functions properly. If your submission requires a custom parser or function, it must be submitted with the PR.

Testing Completed:

• Yes/No/Need Help

Note: If updating a detection, you must update the version field.

Before the submission has been made, please look at running the KQL and Yaml Validation Checks locally.
https://github.com/Azure/Azure-Sentinel#run-kql-validation-locally

Checked that the validations are passing and have addressed any issues that are present:

• Yes/No/Need Help

Note: Let us know if you have tried fixing the validation error and need help.

References:

• Guidance for Detection checks
• General contribution guidance
• PR validation troubleshooting

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[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Updates the anomaly detection rule to use a deviation threshold consistent with the query’s deviation scale (0–1) and bumps the rule version accordingly.

Changes:

• Changed the deviation threshold from 50 to 0.5 in the KQL query.
• Updated the analytic rule version from 1.0.0 to 1.0.1.

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[v-atulyadav]

Hi ripping-at-the-siem,
Please repackage the solution. Thanks

[ripping-at-the-siem]

v-atulyadav I'm sorry but I don't know what you mean by "repackage the solution". This is my first PR ever.

[v-atulyadav]

Hi ripping-at-the-siem,
Please refer below link for your reference. Thanks
https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/README.md

[v-atulyadav]

Hi ripping-at-the-siem,
Please let us know if you are facing any difficulties with this process. We’ll be happy to help. Thanks

[v-atulyadav]

Hi ripping-at-the-siem,
Please let us know if you are facing any difficulties with this process. We’ll be happy to assist. Thanks

[v-atulyadav]

Hi ripping-at-the-siem,
Please review above comments. Thanks

[v-atulyadav]

Hi ripping-at-the-siem,
Please let us know if you are facing any difficulties with this process. Thanks