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App Control: Unanalyzed Blocks on Chrome, MS Edge or Teams Files During App Updates

App Control: Unanalyzed Blocks on Chrome, MS Edge or Teams Files During App Updates

Environment

  • App Control Agent: 8.5 - 8.7.2

Symptoms

Chrome, MS Edge, Teams upgrades triggering unanalyzed blocks where the file hash is missing from the block event (most commonly seen with "chrome_elf.dll")

Cause

This is a known issue with agents 8.7.2 and prior where the agent uses a cached file path instead of the actual file path from the file operation thus resulting in hash miss and unanalyzed block

Resolution

The issue EP-13750 has been resolved with the 8.7.4 Agent version which can be found here

Additional Notes

There is also an agent configuration that can be applied to allow executions of files that don't exist or have been deleted before file analysis began per this KB

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Creation Date:
‎04-05-2022
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