YARA Detection Rule: PUA_VULN_Renamed_Driver_Nvidiacorporation_Nvflash_Nvidiaflashdriver_AFDD
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - nvflash.sys
Author: Florian Roth
Reference: https://github.com/magicsword-io/LOLDrivers

Pattern signatures:
$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]002c[PII_REDACTED][PII_REDACTED]0069006f006e[PII_REDACTED]2e0038002e0030 } /* FileDescription NVIDIAFlashDriverVersion */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6f[PII_REDACTED]6f[PII_REDACTED]740069006f006e } /* CompanyName NVIDIACorporation */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0038002e0030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0038002e0030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8]006e[PII_REDACTED]6c[PII_REDACTED]68 } /* InternalName nvflash */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED] } /* ProductName NVIDIAFlashDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d006

Detection condition:
uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /nvflash/i

Full rule:
rule PUA_VULN_Renamed_Driver_Nvidiacorporation_Nvflash_Nvidiaflashdriver_AFDD {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - nvflash.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "afdd66562dea51001c3a9de300f91fc3eb965d6848dfce92ccb9b75853e02508"
		date = "2024-08-07"
		score = 70
		id = "43d4d647-32f2-5838-9182-c72420786bdb"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]002c[PII_REDACTED][PII_REDACTED]0069006f006e[PII_REDACTED]2e0038002e0030 } /* FileDescription NVIDIAFlashDriverVersion */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6f[PII_REDACTED]6f[PII_REDACTED]740069006f006e } /* CompanyName NVIDIACorporation */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0038002e0030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0038002e0030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8]006e[PII_REDACTED]6c[PII_REDACTED]68 } /* InternalName nvflash */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED] } /* ProductName NVIDIAFlashDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]006e[PII_REDACTED]6c[PII_REDACTED]68002e[PII_REDACTED]73 } /* OriginalFilename nvflashsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]370020004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6f[PII_REDACTED]6f[PII_REDACTED]740069006f006e002e[PII_REDACTED]6c006c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0064002e } /* LegalCopyright CNVIDIACorporationAllrightsreserved */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /nvflash