Threats like UPATRE are continuously evolving as seen in the development of the techniques used so as to bypass security solutions. UPATRE malware are known downloaders of information stealers like ZeuS that typically spread via email attachments. We recently spotted several spam runs that use the popular file hosting service Dropbox. These use embedded links lead to the download of UPATRE malware variants. What is noteworthy in these spam attacks is that it is the first instance we saw TROJ_UPATRE being deployed via URL found in an email message.
more here...........http://blog.trendmicro.com/trendlabs-security-intelligence/social-engineering-watch-upatre-malware-abuses-dropbox-links/
more here...........http://blog.trendmicro.com/trendlabs-security-intelligence/social-engineering-watch-upatre-malware-abuses-dropbox-links/