benware
Benign/benevolent software. The opposite of malware (malicious/malevolent software). A piece of software that is not malware. Not to be confused with anti-malware, i.e. anti-virus tools and such.
Also note that malware may cause benware to become malware.
Also note that malware may cause benware to become malware.
Firefox, Twitter, Photoshop, games... it's all benware.