YARA Detection Rule: PUA_VULN_Renamed_Driver_Arthurliberman_Alsysiosys_Alsysio_7F37
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - ALSysIO64.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]0041004c[PII_REDACTED]730049004f } /* FileDescription ALSysIO */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]4c[PII_REDACTED]650072006d0061006e } /* CompanyName ArthurLiberman */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0032002e0030002e0039002e0030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0032002e0030002e0039002e0030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8]0041004c[PII_REDACTED]730049004f002e[PII_REDACTED]73 } /* InternalName ALSysIOsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]0041004c[PII_REDACTED]730049004f } /* ProductName ALSysIO */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]0041004c[PII_REDACTED]730049004f002e[PII_REDACTED]73 } /* OriginalFilename ALSysIOsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8]0043006

Detection condition:
uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /ALSysIO64/i

Full rule:
rule PUA_VULN_Renamed_Driver_Arthurliberman_Alsysiosys_Alsysio_7F37 {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - ALSysIO64.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "7f375639a0df7fe51e5518cf87c3f513c55bc117db47d28da8c615642eb18bfa"
		date = "2024-08-07"
		score = 70
		id = "323095b4-4fee-5c73-99f1-fe1142889cea"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8]0041004c[PII_REDACTED]730049004f } /* FileDescription ALSysIO */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]4c[PII_REDACTED]650072006d0061006e } /* CompanyName ArthurLiberman */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0032002e0030002e0039002e0030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0032002e0030002e0039002e0030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8]0041004c[PII_REDACTED]730049004f002e[PII_REDACTED]73 } /* InternalName ALSysIOsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]0041004c[PII_REDACTED]730049004f } /* ProductName ALSysIO */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]0041004c[PII_REDACTED]730049004f002e[PII_REDACTED]73 } /* OriginalFilename ALSysIOsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8]0043006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0033002d[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]4c[PII_REDACTED]650072006d0061006e } /* LegalCopyright CopyrightCArthurLiberman */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /ALSysIO64/i
}