If you are using the legitimate version 4.03, it includes several advancements over older versions:

: Options to resolve DNS names through the proxy and block non-A/AAAA queries.

: The ability to force all system connections through a proxy.

While Proxifier is a legitimate tool, versions of it found on third-party sites or GitHub Gists often contain malware .

: High-DPI support, resizable dialogs, and a live traffic graph. Typical Contents of a (Safe) Distribution A legitimate installation package usually contains: Proxifier v4 for Windows Changelog

: Some distributions of Proxifier v4 are bundled with "ClipBanker" trojans that steal cryptocurrency and add exceptions to Microsoft Defender to hide themselves.

: Third-party archives often include "Registration Keys.txt" files that are used to lure users into downloading infected software.