Malware
MOUSEISLAND
MOUSEISLAND is a Microsoft Word macro downloader used as the first infection stage and is delivered inside a password-protected zip attached to a phishing email.
MOUSEISLAND is a VBScript malware family.
Background
MOUSEISLAND is a macro-based downloader embedded in a Microsoft Word document that serves as the initial infection stage, arriving in a password-protected zip attached to a phishing message. According to Fireeye's investigations into ICEDID-related intrusions, MOUSEISLAND has gone on to deliver PHOTOLOADER, an intermediate downloader that subsequently installs ICEDID.
Source: Malpedia (Fraunhofer FKIE).