Infosecurity: In an ironic turn of events, an email spam campaign is targeting those who send letters the old-fashioned way, through rain, sleet, snow and gloom of night, via the US Postal Service.
Zscaler has published an analysis of a botnet named Asprox, which forwards messages that are supposedly from USPS in order to get victims to click on a link. The link purports to be a shipping receipt, but is of course in reality a malicious .zip file, containing a variant of the malware.