Oh, wait… I just remembered… users have reported that Filezilla does by itself install malware/bundleware, unless you’re very careful to untick some boxes during the installation… IT IS malicious that they install other stuff on your machine and it’s hard for you to find what exactly they installed…
The detection happens with the update download, which does not have any bundled software. It also detects the installer that specifically does not have the option for installing bundled software.
Oh, wait… I just remembered… users have reported that Filezilla does by itself install malware/bundleware, unless you’re very careful to untick some boxes during the installation… IT IS malicious that they install other stuff on your machine and it’s hard for you to find what exactly they installed…
See the Negative reviews on Alternativeto
The detection happens with the update download, which does not have any bundled software. It also detects the installer that specifically does not have the option for installing bundled software.
There’s got to be an explanation, it’s either a false positive, or indeed malware… Try to upload the file to VirusTotal and see what you get