SourceForge does not have malware or viruses. All projects, downloads, and releases served from SourceForge are scanned for malware and viruses, so you can rest assured that your downloads from SourceForge are safe and will not harm your computer or device.
However, there are a few projects on SourceForge that are used for security and penetration testing purposes, and in this case we still scan them for malware, viruses, and unwanted files. If our scanners find any suspicious or malicious files, a bright orange alert will display instead of the download button. These files are not malicious in intent, but are used by security researchers and IT professionals for security and research purposes.
With the exception of security and penetration testing open source projects, SourceForge projects and downloads do not contain malware, viruses, adware, or bundled installers. Every single upload and download on SourceForge is scanned for malware and all types of unwanted files before we serve it to end-users who are interested in downloading software.