Gentlemen ransomware uses vulnerable Lenovo and Safetica drivers (BYOVD) to kill security software before encryption
Acronis Threat Research Unit found that the Gentlemen ransomware operation is using the BYOVD (bring your own vulnerable driver) technique with legitimate Lenovo and Safetica kernel drivers to terminate endpoint security software before encrypting files. Two custom dropper samples were recovered from a recent incident. They install the dr…