vboxguest.sys
VirtualBox Guest Driver file version info
Driver on Windows LOLDrivers vulnerable driver
A known vulnerable driver
T1068Exploitation for Privilege Escalation
2 known samples
1.5.6.28241 · its entry
d53f9111a5e6c94b37e3f39c5860897405cb250dd11aa91c3814a98b1759c0551.5.2 · its entry
983310cdce8397c016bfcfcc9c3a8abbb5c928b235bc3c3ae3a3cc10ef24dfbdFrom LOLDrivers (Apache 2.0). A driver is known by its hash: a sample under another name is the same driver. In Ceplin, "<sha256>".whatis() says which sample a hash is.
Is it the real vboxguest.sys?
ProductVirtualBox Guest Additions, innotek GmbH
DescriptionVirtualBox Guest Driver
From the file’s version info, as recorded by xCyclopedia (MIT). A copy in another folder, signed by someone else or with another hash is not necessarily malicious, but it is worth a closer look.