YARA Detection Rule: PUA_VULN_Renamed_Driver_Computerzsys_Ludashisystemdriver_898E
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - ComputerZ.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]004c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]6d[PII_REDACTED][PII_REDACTED]00650072 } /* FileDescription LudashiSystemDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]9c8159275e08 } /* CompanyName  */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0033002e[PII_REDACTED]2e[PII_REDACTED]31 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0033002e[PII_REDACTED]2e[PII_REDACTED]31 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8]0043006f006d[PII_REDACTED][PII_REDACTED]005a002e[PII_REDACTED]73 } /* InternalName ComputerZSys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]004c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]6d[PII_REDACTED][PII_REDACTED]00650072 } /* ProductName LudashiSystemDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]0043006f006d[PII_REDACTED][PII_REDACTED]005a002e005300790

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

Full rule:
rule PUA_VULN_Renamed_Driver_Computerzsys_Ludashisystemdriver_898E {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - ComputerZ.Sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "898e07cf276ec2090b3e7ca7c192cc0fa10d6f13d989ef1cb5826ca9ce25b289"
		hash = "07d0090c76155318e78a676e2f8af1500c20aaa1e84f047c674d5f990f5a09c8"
		date = "2024-08-07"
		score = 70
		id = "15e87c7e-fa8f-549e-9f86-00c1246ccb3e"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8]004c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]6d[PII_REDACTED][PII_REDACTED]00650072 } /* FileDescription LudashiSystemDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]9c8159275e08 } /* CompanyName  */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0033002e[PII_REDACTED]2e[PII_REDACTED]31 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0033002e[PII_REDACTED]2e[PII_REDACTED]31 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8]0043006f006d[PII_REDACTED][PII_REDACTED]005a002e[PII_REDACTED]73 } /* InternalName ComputerZSys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]004c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]6d[PII_REDACTED][PII_REDACTED]00650072 } /* ProductName LudashiSystemDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]0043006f006d[PII_REDACTED][PII_REDACTED]005a002e[PII_REDACTED]73 } /* OriginalFilename ComputerZSys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8]0043006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0038002d[PII_REDACTED][PII_REDACTED][PII_REDACTED]77002e006c[PII_REDACTED][PII_REDACTED]0069002e0063006f006d } /* LegalCopyright CopyrightCwwwludashicom */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /ComputerZ/i
}