Researchers at Kaspersky Labs have uncovered a new, long-lived piece of espionage malware called Careto (Spanish for "Mask"). The software, which attacks Windows, Mac OS and GNU/Linux, has been running since at least 2007 and has successfully targeted at least 380 victims in 31 countries, gaining access via directed spear-phishing attacks, which included setting up fake sites to impersonate The Guardian. The Mask was thought to be the work of a government, and its targets were "government institutions, diplomatic offices and embassies, energy, oil and gas companies, research organizations and activists." It is possible that the Mask also targeted Android and Ios devices.
* The authors appear to be native in the Spanish language which has been observed very rarely in APT attacks.
* The campaign was active for at least five years until January 2014 (some Careto samples were compiled in 2007). During the course of Kaspersky Lab’s investigations, the command-and-control (C&C) servers were shut down.
* We counted over 380 unique victims between 1000+ IPs. Infections have been observed in: Algeria, Argentina, Belgium, Bolivia, Brazil, China, Colombia, Costa Rica, Cuba, Egypt, France, Germany, Gibraltar, Guatemala, Iran, Iraq, Libya, Malaysia, Mexico, Morocco, Norway, Pakistan, Poland, South Africa, Spain, Switzerland, Tunisia, Turkey, United Kingdom, United States and Venezuela.
* The complexity and universality of the toolset used by the attackers makes this cyber-espionage operation very special. This includes leveraging high-end exploits, an extremely sophisticated piece of malware, a rootkit, a bootkit, Mac OS X and Linux versions and possibly versions for Android and iPad/iPhone (iOS). The Mask also used a customized attack against Kaspersky Lab’s products.
* Among the attack’s vectors, at least one Adobe Flash Player exploit (CVE-2012-0773) was used. It was designed for Flash Player versions prior to 10.3 and 11.2. This exploit was originally discovered by VUPEN and was used in 2012 to escape the Google Chrome sandbox to win the CanSecWest Pwn2Own contest.
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