YARA Detection Rule: PUA_VULN_Renamed_Driver_Nvidiacorp_Nvoclocksys_Nvidiasystemutilitydriver_AE3A
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - nvoclock.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][PII_REDACTED]0065006d[PII_REDACTED]740069006c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED] } /* FileDescription NVIDIASystemUtilityDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6f[PII_REDACTED]2e } /* CompanyName NVIDIACorp */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0036002e[PII_REDACTED]2e00310032 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0036002e[PII_REDACTED]2e00310032 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8]006e0076006f0063006c006f0063006b002e[PII_REDACTED]73 } /* InternalName nvoclocksys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0065006d[PII_REDACTED]740069006c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED] } /* ProductName NVIDIASystemUtilityDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c0

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

Full rule:
rule PUA_VULN_Renamed_Driver_Nvidiacorp_Nvoclocksys_Nvidiasystemutilitydriver_AE3A {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - nvoclock.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "ae3a6a0726f667658fc3e[PII_REDACTED]dcb31bdbf833d7cb76ba5d405058d5156"
		date = "2024-08-07"
		score = 70
		id = "39afdad7-c85c-5d88-9167-284deb47f132"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0065006d[PII_REDACTED]740069006c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED] } /* FileDescription NVIDIASystemUtilityDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6f[PII_REDACTED]2e } /* CompanyName NVIDIACorp */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0036002e[PII_REDACTED]2e00310032 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0036002e[PII_REDACTED]2e00310032 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8]006e0076006f0063006c006f0063006b002e[PII_REDACTED]73 } /* InternalName nvoclocksys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]004e[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0065006d[PII_REDACTED]740069006c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED] } /* ProductName NVIDIASystemUtilityDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]006e0076006f0063006c006f0063006b002e[PII_REDACTED]73 } /* OriginalFilename nvoclocksys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8]0043006f[PII_REDACTED][PII_REDACTED][PII_REDACTED]2000a9004e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6f[PII_REDACTED]2e[PII_REDACTED][PII_REDACTED]002d[PII_REDACTED]300034 } /* LegalCopyright CopyrightNVIDIACorp */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /nvoclock/i
}