Use tools like Malwarebytes or Windows Defender to perform a full system scan.
The file is typically generated by automated hacking tools, such as the BLTools multi-tool , which are designed to "check" the validity of stolen account credentials or session cookies. According to analysis reports from Joe Sandbox , this specific file often contains a list of or cookies that have been verified as working. AllValideSession.txt
Log into your critical accounts (Email, Banking, Social Media) from a different, clean device and select "Log out of all other sessions." Use tools like Malwarebytes or Windows Defender to