Trying to determine if some RAR files contain malware - PureOS

: Older versions of extraction tools (like WinRAR 5.70 and earlier) had vulnerabilities (e.g., CVE-2018-20252) that allowed attackers to plant malware in your startup folder simply by you opening the archive.

: Ensure you are using the latest version of 7-Zip or WinRAR to protect against known archive-handling exploits.