nvoclock.sys
NVIDIA System Utility Driver file version info
Driver on Windows LOLDrivers vulnerable driver 1 Sigma rule names it
A known vulnerable driver
https://www.loldrivers.io/drivers/837ad058-65f4-4b75-8f21-b842e48db8a5/
26 known samples
Show the 26 samples’ SHA-256 hashes
7.00.00 · its entry
b0dcdbdc62949c981c4fc04ccea64be008676d23506fc05637d9686151a4b77f6.05.06 · its entry
642857fc8d737e92db8771e46e8638a37d9743928c959ed056c15427c6197a546.05.06 · its entry
f4e500a9ac5991da5bf114fa80e66456a2cde3458a3d41c14e127ac09240c1146.05.02 · its entry
060d25126e45309414b380ee29f900840b689eae4217a8e621563f130c1d457f6.05.02 · its entry
b8321471be85dc8a67ac18a2460cab50e7c41cb47252f9a7278b1e69d6970f256.05.00 · its entry
848b150ffcf1301b26634a41f28deacb5ccdd3117d79b590d515ed49849b88916.03.12 · its entry
ae3a6a0726f667658fc3e3180980609dcb31bdbf833d7cb76ba5d405058d51566.03.06 · its entry
909f6c4b8f779df01ef91e549679aa4600223ac75bc7f3a3a79a37cee2326e776.02.15 · its entry
16ae28284c09839900b99c0bdf6ce4ffcd7fe666cfd5cfb0d54a3ad9bea9aa9c6.02.15 · its entry
d54ac69c438ba77cde88c6efd6a423491996d4e8a235666644b1db954eb1da9c5.05.54 · its entry
afda5af5f210336061bff0fab0ed93ee495312bed639ec5db56fbac0ea8247d35.05.54 · its entry
b2364c3cf230648dad30952701aef90acfc9891541c7e154e30c9750da213ed15.05.47 · its entry
87b4c5b7f653b47c9c3bed833f4d65648db22481e9fc54aa4a8c6549fa31712b5.05.25 · its entry
3d008e636e74c846fe7c00f90089ff725561cb3d49ce3253f2bbfbc939bbfcb25.05.18 · its entry
3cb111fdedc32f2f253aacde4372b710035c8652eb3586553652477a521c92845.05.18 · its entry
9bfd24947052bfe9f2979113a7941e40bd7e3a82eaa081a32ad4064159f07c915.05.14 · its entry
77da3e8c5d70978b287d433ae1e1236c895b530a8e1475a9a190cdcc06711d2f5.05.14 · its entry
837d3b67d3e66ef1674c9f1a47046e1617ed13f73ee08441d95a6de3d73ee9f25.00.06 · its entry
29f449fca0a41deccef5b0dccd22af18259222f69ed6389beafe8d5168c59e365.00.06 · its entry
d633055c7eda26dacfc30109eb790625519fc7b0a3a601ceed9e21918aad8a1b3.00.00 · its entry
0fc0644085f956706ea892563309ba72f0986b7a3d4aa9ae81c1fa1c35e3e2d32.05.09 · its entry
4d777a9e2c61e8b55b3c34c5265b301454bb080abe7ffb373e7800bd6a498f8d2.00.20 · its entry
a47555d04b375f844073fdcc71e5ccaa1bbb201e24dcdebe2399e055e15c849f1, 08, 05, 00 · its entry
2203bd4731a8fdc2a1c60e975fd79fd5985369e98a117df7ee43c528d3c859581, 00, 00, 00 · its entry
64a8e00570c68574b091ebdd5734b87f544fa59b75a4377966c661d0475d69a51, 00, 00, 00 · its entry
d7c90cf3fdbbd2f40fe6a39ad0bb2a9a97a0416354ea84db3aeff6d925d14df8From 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 nvoclock.sys?
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.
What detects it
Sigma names nvoclock.sys in 1 rule, for every kind of event; none is a process creation rule CmdID evaluates, so none is listed.