PUA.Packed.ASPack is not a threat. It is reported for some softwares, which uses third party installers, so there is no need to be worried.
There is an official statement on ClamAV site:
This is a detection for files that use some kind of runtime packer. A
runtime packer can be used to reduce the size of executable files
without the need for an external unpacker. While this can‘t be
considered malicious in general, runtime packers are widely used with
malicious files since they can prevent a already known malware from
detection by an Antivirus product.