What is a denylist of keys


Kaspersky Anti-Virus 8.0 for Linux File Servers


What is a denylist of keys

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Latest update: August 04, 2020 ID: 4437

Denylist of key files is a database that contains the information about key files which cannot be used by Kaspersky software any more. There is a number of ways a key can end up in this database:

  • The key has been replaced with a new one as malfunctioning;
  • The key has been replaced with a new one after being activated on a computer with incorrect system time/date;
  • The key has been replaced with a new one as stolen;
  • The key was available on pirate servers (for free download).

The denylist of key files is named blst. This file is downloaded and saved along with databases (anti-virus, anti-spam, network attacks). Kaspersky software cannot function without a denylist file.

Kaspersky software stops functioning and notifies hereof:

  • if there is no blst file on your PC;
  • if the file blst is damaged;
  • if the Kaspersky Anti-Virus you have installed is using a key file from the denylist;

If there is no blst on your PC or it is damaged, start an update task to download it again.

If you think your license key has been mistakenly added to the denylist, please send it along with the purchase information (date, place, and all the documents confirming this purchase) to Kaspersky Technical Support service by filling in the CompanyAccount with query type "Key problem".

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