To avoid malware or fake installers, you should only use the official sources. Both of these sites are legitimate and offer the Russian language version:
: The primary international site with a dedicated Russian landing page. win rar rus skachat besplatno
: The developer’s original site. It looks old-school but is 100% official and safe. Is it Truly Free? WinRAR uses a unique shareware model: WinRAR download free and support To avoid malware or fake installers, you should
If you are looking to download in Russian for free, Where to Download Safely To avoid malware or fake installers