ESET researchers looked into notorious Latin American banking trojans. This time they’ve explored Mekotio, a banking trojan targeting Spanish- and Portuguese-speaking countries: mainly Brazil, Chile, Mexico, Spain, Peru and Portugal. Mekotio boasts several typical backdoor activities, including taking screenshots, restarting affected machines, restricting access to legitimate banking websites, and, in some variants, even stealing bitcoins and exfiltrating credentials stored by the Google Chrome browser.
Mekotio has been active since at least 2015 and, as with other banking trojans ESET has investigated, shares common characteristics for this type of malware, such as being written in Delphi, using fake pop-up windows and containing backdoor functionality. To look less suspicious, Mekotio tries to impersonate a security update using a specific message box.