LoFP LoFP / legitimate appx packages not signed by ms used part of an enterprise

Techniques

Sample rules

Suspicious AppX Package Installation Attempt

Description

Detects an appx package installation with the error code “0x80073cff” which indicates that the package didn’t meet the signing requirements and could be suspicious

Detection logic

condition: selection
selection:
  ErrorCode: '0x80073cff'
  EventID: 401