ClamAV is an enterprise-class antivirus used in servers to filter Internet or file traffic.
More precisely, it is an application that can be used as a backend for an application that submits information to be scanned, which is exactly how MultiAntivirus benefits.
For ClamAV, PUA(Potentially Unwanted Applications) are suspicious files because they contain elements shared with dangerous applications.
For example, a PC remote administration tool and a spy program may have elements in common, even instruction libraries in common.
For this reason, they are not necessarily viruses, but elements that it is better to observe and know exist. For this reason, PUA alerts are not suppressed, but fall under the MultiAntivirus suspicious files category.
PUA category list:
PUA.Andr.Adware (PUA for Android mobile devices.)
PUA.Andr.Downloader (PUA for Android mobile devices.)
PUA.Andr.Dropper (PUA for Android mobile devices.)
PUA.Andr.Tool (PUA for Android mobile devices.)
PUA.Andr.Trojan (PUA for Android mobile devices.)
PUA.Andr.Virus (PUA for Android mobile devices.)
PUA.Cert.Revoked
PUA.Doc.Dropper
PUA.Doc.Packed
PUA.Doc.Tool
PUA.Doc.Trojan
PUA.Email.Phishing
PUA.Email.Trojan
PUA.Embedded.File
PUA.Html.Exploit
PUA.Html.Tool
PUA.Html.Trojan
PUA.Java.Exploit (PUA written for the Java runtime.)
PUA.Java.Packer (PUA written for the Java runtime.)
PUA.Js.Exploit
PUA.Osx.File
PUA.Osx.Trojan
PUA.Packed.Tool
PUA.Pdf.Exploit
PUA.Pdf.Trojan
PUA.Php.Trojan
PUA.Rtf.Exploit
PUA.Spy.Tool
PUA.Swf.Spyware
PUA.Tool.Countermeasure
PUA.Tool.Tool
PUA.Unix.Adware
PUA.Unix.Coinminer
PUA.Unix.Downloader
PUA.Unix.File
PUA.Unix.Malware
PUA.Unix.Tool
PUA.Unix.Trojan
PUA.Unix.Virus
PUA.Win.Adware
PUA.Win.Coinminer
PUA.Win.Downloader
PUA.Win.Dropper
PUA.Win.Exploit
PUA.Win.File
PUA.Win.Ircbot
PUA.Win.Joke
PUA.Win.Keylogger
PUA.Win.Malware
PUA.Win.Packed
PUA.Win.Packer
PUA.Win.Proxy
PUA.Win.Ransomware
PUA.Win.Spyware
PUA.Win.Tool
PUA.Win.Trojan
PUA.Win.Virus
Packer: This PUA is identified in the presence of runtime packers. This practice is used by both legitimate and malicious applications.
The 'suspect files' files of MultiAntivirus are a category of files that the antivirus does not delete, but are placed on a list that the user can view at his or her discretion.