A new crimeware kit dubbed the Rubella Macro Builder is rapidly gaining popularity in the cybercriminal underground. Rubella is not particularly sophisticated, the builder is used to create Microsoft Word or Excel weaponized documents to use in spam email. The Rubella-generated malware acts as a first-stage loader for other malware. Crooks are offering it as a service for a three-month license of $120 for $120. The builder is cheap, fast and easy to use, the malware it generated can evade antivirus detection.”]
Source: https://securityaffairs.co/wordpress/71817/malware/rubella-macro-builder-kit.html