Potential Masquerading as Business App Installer

process where host.os.type == "windows" and 
  event.type == "start" and process.executable : "?:\\Users\\*\\Downloads\\*" and
  not process.code_signature.status like ("errorCode_endpoint*", "errorUntrustedRoot", "errorChaining") and process.hash.sha256 != null and 
  (
    /* Slack */
    (process.name : "*slack*.exe" and not
      (process.code_signature.subject_name in (
        "Slack Technologies, Inc.",
        "Slack Technologies, LLC"
       ) and process.code_signature.trusted == true)
    ) or

    /* WebEx */
    (process.name : "*webex*.exe" and not
      (process.code_signature.subject_name in ("Cisco WebEx LLC", "Cisco Systems, Inc.") and process.code_signature.trusted == true)
    ) or

    /* Teams */
    (process.name : "teams*.exe" and not
      (process.code_signature.subject_name == "Microsoft Corporation" and process.code_signature.trusted == true)
    ) or

    /* Discord */
    (process.name : "*discord*.exe" and not
      (process.code_signature.subject_name == "Discord Inc." and process.code_signature.trusted == true)
    ) or

    /* WhatsApp */
    (process.name : "*whatsapp*.exe" and not
      (process.code_signature.subject_name in (
        "WhatsApp LLC",
        "WhatsApp, Inc",
        "24803D75-212C-471A-BC57-9EF86AB91435",
        /* WhatsApp Installer - MS Store */
        "Microsoft Corporation"
       ) and process.code_signature.trusted == true)
    ) or

    /* Zoom */
    (process.name : ("*zoom*installer*.exe", "*zoom*setup*.exe", "zoom.exe")  and not
      (process.code_signature.subject_name in (
        "Zoom Video Communications, Inc.", "Zoom Communications, Inc."
       ) and process.code_signature.trusted == true)
    ) or

    /* Outlook */
    (process.name : "*outlook*.exe" and not
      (
        (process.code_signature.subject_name == "Microsoft Corporation" and process.code_signature.trusted == true) or
        (
          process.name: "MSOutlookHelp-PST-Viewer.exe" and process.code_signature.subject_name == "Aryson Technologies Pvt. Ltd" and
          process.code_signature.trusted == true
        )
      )
    ) or

    /* Thunderbird */
    (process.name : "*thunderbird*.exe" and not
      (process.code_signature.subject_name == "Mozilla Corporation" and process.code_signature.trusted == true)
    ) or

    /* Grammarly */
    (process.name : "*grammarly*.exe" and not
      (process.code_signature.subject_name == "Grammarly, Inc." and process.code_signature.trusted == true)
    ) or

    /* Dropbox */
    (process.name : "*dropbox*.exe" and not
      (process.code_signature.subject_name == "Dropbox, Inc" and process.code_signature.trusted == true)
    ) or

    /* Tableau */
    (process.name : "*tableau*.exe" and not
      (process.code_signature.subject_name == "Tableau Software LLC" and process.code_signature.trusted == true)
    ) or

    /* Google Drive */
    (process.name : "*googledrive*.exe" and not
      (process.code_signature.subject_name == "Google LLC" and process.code_signature.trusted == true)
    ) or

    /* MSOffice */
    (process.name : "*office*setup*.exe" and not
      (process.code_signature.subject_name == "Microsoft Corporation" and process.code_signature.trusted == true)
    ) or

    /* Okta */
    (process.name : "*okta*.exe" and not
      (process.code_signature.subject_name == "Okta, Inc." and process.code_signature.trusted == true)
    ) or

    /* OneDrive */
    (process.name : "*onedrive*.exe" and not
      (process.code_signature.subject_name == "Microsoft Corporation" and process.code_signature.trusted == true)
    ) or

    /* Chrome */
    (process.name : "*chrome*.exe" and not
      (process.code_signature.subject_name in ("Google LLC", "Google Inc") and process.code_signature.trusted == true)
    ) or

    /* Firefox */
    (process.name : "*firefox*.exe" and not
      (process.code_signature.subject_name == "Mozilla Corporation" and process.code_signature.trusted == true)
    ) or

    /* Edge */
    (process.name : ("*microsoftedge*.exe", "*msedge*.exe") and not
      (process.code_signature.subject_name == "Microsoft Corporation" and process.code_signature.trusted == true)
    ) or

    /* Brave */
    (process.name : "*brave*.exe" and not
      (process.code_signature.subject_name == "Brave Software, Inc." and process.code_signature.trusted == true)
    ) or

    /* GoogleCloud Related Tools */
    (process.name : "*GoogleCloud*.exe" and not
      (process.code_signature.subject_name == "Google LLC" and process.code_signature.trusted == true)
    ) or

    /* Github Related Tools */
    (process.name : "*github*.exe" and not
      (process.code_signature.subject_name == "GitHub, Inc." and process.code_signature.trusted == true)
    ) or

    /* Notion */
    (process.name : "*notion*.exe" and not
      (process.code_signature.subject_name == "Notion Labs, Inc." and process.code_signature.trusted == true)
    )
  )