YARA Detection Rule: PUA_VULN_Renamed_Driver_Asrockincorporation_Asrautochkupddrvsys_Asrautochkupddrvdriver_2AA1
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - AsrAutoChkUpdDrv.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]0074006f[PII_REDACTED]6b[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* FileDescription AsrAutoChkUpdDrvDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED]52006f0063006b[PII_REDACTED]6e0063006f[PII_REDACTED]6f[PII_REDACTED]740069006f006e } /* CompanyName ASRockIncorporation */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e[PII_REDACTED]2e[PII_REDACTED]2e[PII_REDACTED][PII_REDACTED][PII_REDACTED]69006c[PII_REDACTED]620079003a[PII_REDACTED]69006e[PII_REDACTED]4b } /* FileVersion builtbyWinDDK */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e[PII_REDACTED]2e[PII_REDACTED]2e[PII_REDACTED]300030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0074006f[PII_REDACTED]6b[PII_REDACTED][PII_REDACTED]0076002e[PII_REDACTED]73 } /* InternalName AsrAutoChkUpdDrvsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0

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

Full rule:
rule PUA_VULN_Renamed_Driver_Asrockincorporation_Asrautochkupddrvsys_Asrautochkupddrvdriver_2AA1 {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - AsrAutoChkUpdDrv.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "2aa1b08f47fbb1e2bd2e4a492f5d616968e703e1359a921f62b38b8e4662f0c4"
		date = "2024-08-07"
		score = 70
		id = "718285a7-b151-5ccd-8dcf-9edac9db7d61"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8][PII_REDACTED][PII_REDACTED]0074006f[PII_REDACTED]6b[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* FileDescription AsrAutoChkUpdDrvDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED]52006f0063006b[PII_REDACTED]6e0063006f[PII_REDACTED]6f[PII_REDACTED]740069006f006e } /* CompanyName ASRockIncorporation */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e[PII_REDACTED]2e[PII_REDACTED]2e[PII_REDACTED][PII_REDACTED][PII_REDACTED]69006c[PII_REDACTED]620079003a[PII_REDACTED]69006e[PII_REDACTED]4b } /* FileVersion builtbyWinDDK */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e[PII_REDACTED]2e[PII_REDACTED]2e[PII_REDACTED]300030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0074006f[PII_REDACTED]6b[PII_REDACTED][PII_REDACTED]0076002e[PII_REDACTED]73 } /* InternalName AsrAutoChkUpdDrvsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0074006f[PII_REDACTED]6b[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* ProductName AsrAutoChkUpdDrvDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0074006f[PII_REDACTED]6b[PII_REDACTED][PII_REDACTED]0076002e[PII_REDACTED]73 } /* OriginalFilename AsrAutoChkUpdDrvsys */
		$ = { 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]006f0063006b0