Carbon Black Cloud: Checksum error indicates a problem with downloading signatures

Products

• Carbon Black Cloud Endpoint Standard (formerly Cb Defense)

Issue/Introduction

• Sensor shows outdated signatures on Endpoint page
• The upd.log includes the following error
  • "The checksum of the file <filename>.vdf.gz is different than the one specified in the info file"

Environment

• Carbon Black Cloud console: All versions
• Endpoint Standard Sensor: 3.3.x and later
• Microsoft Windows: All supported versions

Cause

The checksum error indicates that the listed file got updated between initiating the update and running the checksum

Resolution

• This error will generally resolve without user intervention during the next download attempt
• If signatures do not update and there is no evidence of a local network issue, please open a support case for assistance