Master Channel: The Boleto Mestre Campaign Targets Brazil

vlogMalicious spam (malspam) often uses malware attachments or links to malware disguised as legitimate documents. In Brazil-based malspam, such malware often impersonates a document called "boleto." Boleto is an invoice document for Boleto Bancário, a Brazilian payment method commonly used in e-commerce.

We occasionally run across malspam with fake boleto attachments, and these generally target Brazilian organizations. In one such campaign, we've seen ...