YARA Detection Rule: PUA_VULN_Renamed_Driver_Computerz_Computerzsys_Computerzsystemdriver_61F3
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]0043006f006d[PII_REDACTED][PII_REDACTED]005a[PII_REDACTED][PII_REDACTED]0065006d[PII_REDACTED][PII_REDACTED]00650072 } /* FileDescription ComputerZSystemDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]0043006f006d[PII_REDACTED][PII_REDACTED]005a } /* CompanyName ComputerZ */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0030002e0038002e[PII_REDACTED]38 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0030002e0038002e[PII_REDACTED]38 } /* 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]0043006f006d[PII_REDACTED][PII_REDACTED]005a[PII_REDACTED][PII_REDACTED]0065006d[PII_REDACTED][PII_REDACTED]00650072 } /* ProductName ComputerZSystemDriver */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]0043

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_Computerz_Computerzsys_Computerzsystemdriver_61F3 {
	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 = "61f3b1c026d203ce94fab514e3d15090222c0eedc2a768cc2d073ec658671874"
		date = "2024-08-07"
		score = 70
		id = "c0d811df-024c-5f46-8f2b-3b77d2e1514b"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8]0043006f006d[PII_REDACTED][PII_REDACTED]005a[PII_REDACTED][PII_REDACTED]0065006d[PII_REDACTED][PII_REDACTED]00650072 } /* FileDescription ComputerZSystemDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]0043006f006d[PII_REDACTED][PII_REDACTED]005a } /* CompanyName ComputerZ */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002e0030002e0038002e[PII_REDACTED]38 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002e0030002e0038002e[PII_REDACTED]38 } /* 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]0043006f006d[PII_REDACTED][PII_REDACTED]005a[PII_REDACTED][PII_REDACTED]0065006d[PII_REDACTED][PII_REDACTED]00650072 } /* ProductName ComputerZSystemDriver */
		$ = { 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][PII_REDACTED]43006f006d[PII_REDACTED][PII_REDACTED]005a } /* LegalCopyright CopyrightCComputerZ */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /ComputerZ/i
}