YARA Detection Rule: PUA_VULN_Renamed_Driver_Gigabytetechnologycoltd_Gdrvsys_Gigabytesoftwaredriver_81AA
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - gdrv.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]470041002d[PII_REDACTED][PII_REDACTED]004e006f006e0050006e[PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* FileDescription GIGABYTENonPnPDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED]470041002d[PII_REDACTED][PII_REDACTED][PII_REDACTED]430048004e004f004c004f[PII_REDACTED]200043004f002e002c0020004c[PII_REDACTED]2e } /* CompanyName GIGABYTETECHNOLOGYCOLTD */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0031002e0030002e0031 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0030002e0030002e0031 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]720076002e[PII_REDACTED]73 } /* InternalName gdrvsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED]470041002d[PII_REDACTED][PII_REDACTED]0053006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* ProductName GIGABYTESoftwaredriver */
		$ = { 004f0072

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

Full rule:
rule PUA_VULN_Renamed_Driver_Gigabytetechnologycoltd_Gdrvsys_Gigabytesoftwaredriver_81AA {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - gdrv.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "81aafae4c4158d0b9a6431aff0410745a0f6a43fb20a9ab316ffeb8c2e2ccac0"
		date = "2024-08-07"
		score = 70
		id = "0854ee57-7214-5959-86be-afd26950432c"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8][PII_REDACTED]470041002d[PII_REDACTED][PII_REDACTED]004e006f006e0050006e[PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* FileDescription GIGABYTENonPnPDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED]470041002d[PII_REDACTED][PII_REDACTED][PII_REDACTED]430048004e004f004c004f[PII_REDACTED]200043004f002e002c0020004c[PII_REDACTED]2e } /* CompanyName GIGABYTETECHNOLOGYCOLTD */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0031002e0030002e0031 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0030002e0030002e0031 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]720076002e[PII_REDACTED]73 } /* InternalName gdrvsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED]470041002d[PII_REDACTED][PII_REDACTED]0053006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* ProductName GIGABYTESoftwaredriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED]720076002e[PII_REDACTED]73 } /* OriginalFilename gdrvsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8]0043006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0037 } /* LegalCopyright CopyrightC */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /gdrv/i
}