YARA Detection Rule: PUA_VULN_Renamed_Driver_Ludashicom_Computerzsys_F14D
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]006c[PII_REDACTED][PII_REDACTED]0069002e0063006f006d } /* CompanyName ludashicom */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0036002e[PII_REDACTED]2e[PII_REDACTED]340030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0036002e[PII_REDACTED]2e[PII_REDACTED]340030 } /* 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]9c8159275e08 } /* ProductName  */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]0043006f006d[PII_REDACTED][PII_REDACTED]005a002e[PII_REDACTED]73 } /* OriginalFilename ComputerZSys */

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_Ludashicom_Computerzsys_F14D {
	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 = "f14da8aa5c8eea8df63cf935481d673fdf3847f5701c310abf4023f9d80ad57d"
		hash = "c6a5663f20e5cee2c92dee43a0f2868fb0af299f842410f4473dcde7abcb6413"
		date = "2024-08-07"
		score = 70
		id = "a71b30a2-2553-5c7a-8[PII_REDACTED]cfea8"
	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]006c[PII_REDACTED][PII_REDACTED]0069002e0063006f006d } /* CompanyName ludashicom */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0036002e[PII_REDACTED]2e[PII_REDACTED]340030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0036002e[PII_REDACTED]2e[PII_REDACTED]340030 } /* 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]9c8159275e08 } /* ProductName  */
		$ = { 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][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]30002d[PII_REDACTED][PII_REDACTED][PII_REDACTED]77002e006c[PII_REDACTED][PII_REDACTED]0069002e0063006f006d } /* LegalCopyright Cwwwludashicom */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /ComputerZ/i
}