olemus
juurkratt, mis on installitud tootesse
enne selle jõudmist kasutajani
= rootkit that is installed on a product before the product reaches the user

näiteid
http://anonhq.com/lenovo-still-using-rootkit-for-software/

http://www.breitbart.com/tech/2015/11/24/dell-compromises-customers-security-with-pre-installed-rootkit/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+breitbart+%28Breitbart+News%29

http://thehackernews.com/2016/11/hacking-android-smartphone18.html

https://lifars.com/2016/11/3-million-android-devices-vulnerable-dangerous-pre-installed-rootkit/