YARA Detection Rule: PUA_VULN_Renamed_Driver_Asustekcomputerinc_Eiosys_Asusvgakernelmodedriver_F4C7
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - EIO.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][PII_REDACTED][PII_REDACTED][PII_REDACTED]410020004b[PII_REDACTED]6e0065006c0020004d006f[PII_REDACTED][PII_REDACTED][PII_REDACTED]650072 } /* FileDescription ASUSVGAKernelModeDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0065004b[PII_REDACTED]6f006d[PII_REDACTED][PII_REDACTED][PII_REDACTED]6e0063002e } /* CompanyName ASUSTeKComputerInc */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e00390037 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e00390037 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]4f002e[PII_REDACTED]73 } /* InternalName EIOsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]410020004b[PII_REDACTED]6e0065006c0020004d006f[PII_REDACTED][PII_REDACTED][PII_REDACTED]650072 } /* ProductName ASUSVGAKernelModeDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c006500

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

Full rule:
rule PUA_VULN_Renamed_Driver_Asustekcomputerinc_Eiosys_Asusvgakernelmodedriver_F4C7 {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - EIO.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "f4c7e94a7c2e49b130671b573a9e4ff4527a777978f371c659c3f97c14d126de"
		hash = "cf69704755ec2643dfd245ae1d4e15d77f306aeb1a576ffa159453de1a7345cb"
		hash = "1fac3fab8ea2137a7e81a26de121187bf72e7d16ffa3e9aec3886e2376d3c718"
		date = "2024-08-07"
		score = 70
		id = "f9a24212-2805-5af3-906f-56ba8a60409c"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]410020004b[PII_REDACTED]6e0065006c0020004d006f[PII_REDACTED][PII_REDACTED][PII_REDACTED]650072 } /* FileDescription ASUSVGAKernelModeDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0065004b[PII_REDACTED]6f006d[PII_REDACTED][PII_REDACTED][PII_REDACTED]6e0063002e } /* CompanyName ASUSTeKComputerInc */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e00390037 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e00390037 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]4f002e[PII_REDACTED]73 } /* InternalName EIOsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]410020004b[PII_REDACTED]6e0065006c0020004d006f[PII_REDACTED][PII_REDACTED][PII_REDACTED]650072 } /* ProductName ASUSVGAKernelModeDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED]4f002e[PII_REDACTED]73 } /* OriginalFilename EIOsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8]0043006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]540065004b[PII_REDACTED]6f006d[PII_REDACTED][PII_REDACTED][PII_REDACTED]6e0063002e } /* LegalCopyright CopyrightASUSTeKComputerInc */
	condition:
		uin