Executes dropped EXE

Contacts third-party web service commonly abused for C2

Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

Writes to the Master Boot Record (MBR)

Bootkits write to the MBR to gain persistence at a level below the operating system.

Executes a VBScript file via the Windows Script Host.

Sets desktop wallpaper using registry