How to combine multiple Extra.DAT files

Technical Articles ID: KB68061
Last Modified: 2023-05-01 21:44:03 Etc/GMT

Environment

Trellix Advanced Research Center

Summary

An Extra.DAT file is a temporary detection signature that is provided by our Advanced Research Center for malware that is not detected in the regular .DAT files. These signatures are usually distributed after submission and testing of infected files that were not properly detected or cleaned.

Only a single Extra.DAT can be used at any given time. Sometimes, you might need to combine several Extra.DAT files to defend against multiple new threats. You can upload multiple Extra.DAT files and combine them into a single signature file through the ServicePortal or Platinum Portal.

To combine Extra.DAT files
NOTE: You can combine a negative Extra.DAT and a positive Extra.DAT. But, the combination does not work if both are for the same driver because they cancel each other out.

Log on to the ServicePortal.
Click the Tools tab, and then click Combine Extra.DAT Files.
Click Browse and navigate to the location of your Extra.DAT files.
Select a file and click Upload.
Repeat this process for the other files you want to combine.

NOTE: You can combine up to five Extra.DAT files with this utility.
After you have uploaded all needed Extra.DAT files, click Combine.
Click Save and browse to the folder where you want to store the combined Extra.DAT file.

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How to combine multiple Extra.DAT files

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How to combine multiple Extra.DAT files

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