Security GandCrab V4 Released With the New .KRAB Extension for Encrypted Files dev_threatravens July 4, 2018 Over the weekend, the GandCrab V4 Ransomware was released with numerous changes. These changes include a different encryption algorithms, a new .KRAB extension, a new ransom note name, and a new TOR payment site. […] Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on WhatsApp (Opens in new window)