Researchers have detected a new phishing attack that promises to enhance the security of the user’s emailbox. The email requests that recipients click on a link in the body of the email to update the “security mode” of their emailboxes. Users who click on the link are taken to a Website that advises them to update to the latest version of the Macromedia Flash Player by downloading “flashinstaller.exe” This executable is actually a banking Trojan that is known to disable firewalls and steal sensitive financial data.”]
Source: https://www.darkreading.com/attacks-breaches/new-exploit-masquerades-as-flash-player-upgrade