YARA Detection Rule: PUA_VULN_Renamed_Driver_Asus_Asmmapsys_Atkgenericfunctionservice_025E
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - asmmap64.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]004d0065006d006f[PII_REDACTED]20006d[PII_REDACTED]700069006e[PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* FileDescription MemorymappingDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED] } /* CompanyName ASUS */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002c[PII_REDACTED]2c[PII_REDACTED]2c00200031 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002c[PII_REDACTED]2c[PII_REDACTED]2c00200030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]6d006d[PII_REDACTED]2e[PII_REDACTED]73 } /* InternalName asmmapsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED]4b[PII_REDACTED]65006e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6e[PII_REDACTED]69006f006e[PII_REDACTED][PII_REDACTED][PII_REDACTED]65 } /* ProductName ATKGenericFunctionService */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED]6d006d006100

Detection condition:
uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /asmmap64/i

Full rule:
rule PUA_VULN_Renamed_Driver_Asus_Asmmapsys_Atkgenericfunctionservice_025E {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - asmmap64.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "025e7be9fcefd6a83f4471bba0c11f1c11bd5047047d26626da24ee9a419cdc4"
		date = "2024-08-07"
		score = 70
		id = "610c253b-de94-5ebd-af97-d0a6b1339d81"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8]004d0065006d006f[PII_REDACTED]20006d[PII_REDACTED]700069006e[PII_REDACTED][PII_REDACTED][PII_REDACTED]72 } /* FileDescription MemorymappingDriver */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED] } /* CompanyName ASUS */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002c[PII_REDACTED]2c[PII_REDACTED]2c00200031 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0031002c[PII_REDACTED]2c[PII_REDACTED]2c00200030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]6d006d[PII_REDACTED]2e[PII_REDACTED]73 } /* InternalName asmmapsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED]4b[PII_REDACTED]65006e[PII_REDACTED][PII_REDACTED][PII_REDACTED]6e[PII_REDACTED]69006f006e[PII_REDACTED][PII_REDACTED][PII_REDACTED]65 } /* ProductName ATKGenericFunctionService */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED]6d006d[PII_REDACTED]2e[PII_REDACTED]73 } /* OriginalFilename asmmapsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8]0043006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0039 } /* LegalCopyright CopyrightC */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /asmmap64/i
}