YARA Detection Rule: PUA_VULN_Renamed_Driver_Wistroncorporation_Wirwadrvsys_Wistronrwadriver_D8FC
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - WiRwaDrv.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]006f006e[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0072 } /* FileDescription WistronRWADriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]006f006e[PII_REDACTED]6f[PII_REDACTED]6f[PII_REDACTED]740069006f006e } /* CompanyName WistronCorporation */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0030002e0030002e[PII_REDACTED]310036 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0030002e0030002e[PII_REDACTED]310036 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]76002e[PII_REDACTED]73 } /* InternalName WiRwaDrvsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]006f006e[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0072 } /* ProductName WistronRWADriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]00

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

Full rule:
rule PUA_VULN_Renamed_Driver_Wistroncorporation_Wirwadrvsys_Wistronrwadriver_D8FC {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - WiRwaDrv.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "d8fc8e3a1348393c5d7c3a84bcbae383d85a4721a751ad7afac5428e5e579b4e"
		date = "2024-08-07"
		score = 70
		id = "35f71ee7-9f76-59ba-8f2a-4113738c7b6a"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8][PII_REDACTED][PII_REDACTED]006f006e[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0072 } /* FileDescription WistronRWADriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]006f006e[PII_REDACTED]6f[PII_REDACTED]6f[PII_REDACTED]740069006f006e } /* CompanyName WistronCorporation */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0030002e0030002e[PII_REDACTED]310036 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0030002e0030002e[PII_REDACTED]310036 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]76002e[PII_REDACTED]73 } /* InternalName WiRwaDrvsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]006f006e[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0072 } /* ProductName WistronRWADriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]76002e[PII_REDACTED]73 } /* OriginalFilename WiRwaDrvsys */
		$ = { 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][PII_REDACTED][PII_REDACTED]6f006e[PII_REDACTED]6f[PII_REDACTED]6f[PII_REDACTED]740069006f006e } /* LegalCopyright CopyrightCWistronCorporation */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /WiRwaDrv/i
}