Services may be created with administrator privileges but are executed under system privileges, so an adversary can also use a service to escalate privileges from Administrator to System. 29],[30(link is external)] - During the STOLEN PENCIL operation in May 2018, Kimsuky used the GREASE malware. 32(link is external)] Kimsuky also targets Microsoft Office users by formatting their documents in a .docx file rather than .hwp and will tailor their macros accordingly