Sigma rule: AppX Package Deployment Failed Due to Signing Requirements

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-b514c334cf0f, updated 2025-12-03T00:00:00.000Z.

Rule

Title
AppX Package Deployment Failed Due to Signing Requirements
Status
test
Level
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2023-01-11
Modified
2025-12-03
File
rules/windows/builtin/appxdeployment_server/win_appxdeployment_server_appx_package_deployment_failed_signing_requirements.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects an appx package deployment / installation with the error code "0x80073cff" which indicates that the package didn't meet the signing requirements.

Log source

product
windows
service
appxdeployment-server

Detection

selection:
    EventID: 401
    ErrorCode: '0x80073cff' # Check ref section to learn more about this error code
condition: selection

False positives (as the rule lists them)

  • Legitimate AppX packages not signed by MS used part of an enterprise.

Tags

  • attack.stealth

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/appxdeployment_server/win_appxdeployment_server_appx_package_deployment_failed_signing_requirements.yml

Sources and licences

  • SigmaHQ

    "AppX Package Deployment Failed Due to Signing Requirements" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/appxdeployment_server/win_appxdeployment_server_appx_package_deployment_failed_signing_requirements.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: AppX Package Deployment Failed Due to Signing Requirements",
entity page, dataset version ref-b514c334cf0f, updated 2025-12-03T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/898d5fc9-fbc3-43de-93ad-38e97237c344 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 898d5fc9-fbc3-43de-93ad-38e97237c344, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.