WhatsApp is one of the most popular instant-messaging services out there, and its huge user base (over 300 million active users) makes Whatsapp-themed spam a great way to infect a large number of computers.
The latest of these spam campaigns is currently delivering emails claiming that the user has “Voice Message Notification / 1 New Voicemail” waiting in their inboxes, attached to the email:
Unfortunately, according to Webroot, the fake voice mail attachment contains a Trojan downloader that attempts to download additional malware from a well-known C&C server.
The only good news in all of this is that this particular malware variant has a high detection rate, and is more than likely to be detected by most AV solution. Of course, not all users use one, and are in danger of getting a bucketful of different malware on their machines.