YARA Detection Rule: PUA_VULN_Renamed_Driver_Avastsoftware_Aswvmmsys_Avastantivirus_3650
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - aswVmm.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][PII_REDACTED][PII_REDACTED][PII_REDACTED]56004d0020004d006f006e[PII_REDACTED]6f0072 } /* FileDescription avastVMMonitor */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]6f[PII_REDACTED][PII_REDACTED]0065 } /* CompanyName AVASTSoftware */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0038002e0030002e[PII_REDACTED]390037002e[PII_REDACTED]36 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0038002e0030002e[PII_REDACTED]390037002e[PII_REDACTED]36 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]770056006d006d002e[PII_REDACTED]73 } /* InternalName aswVmmsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]41006e[PII_REDACTED][PII_REDACTED]00750073 } /* ProductName avastAntivirus */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED]770056006d006d002e007300790

Detection condition:
uint16(0) == 0x5a4d and filesize < 200KB and all of them and not filename matches /aswVmm/i

Full rule:
rule PUA_VULN_Renamed_Driver_Avastsoftware_Aswvmmsys_Avastantivirus_3650 {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - aswVmm.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "36505921af5a09175395ebaea29c72b2a69a3a9204384a767a5be8a721f31b10"
		date = "2024-08-07"
		score = 70
		id = "715dc163-ea21-5633-9d27-6b80e5207fb6"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]56004d0020004d006f006e[PII_REDACTED]6f0072 } /* FileDescription avastVMMonitor */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]6f[PII_REDACTED][PII_REDACTED]0065 } /* CompanyName AVASTSoftware */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0038002e0030002e[PII_REDACTED]390037002e[PII_REDACTED]36 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0038002e0030002e[PII_REDACTED]390037002e[PII_REDACTED]36 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]770056006d006d002e[PII_REDACTED]73 } /* InternalName aswVmmsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]41006e[PII_REDACTED][PII_REDACTED]00750073 } /* ProductName avastAntivirus */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED]770056006d006d002e[PII_REDACTED]73 } /* OriginalFilename aswVmmsys */
		$ = { 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][PII_REDACTED][PII_REDACTED]200053006f[PII_REDACTED][PII_REDACTED]0065 } /* LegalCopyright CopyrightcAVASTSoftware */
	condition:
		uint16(0) == 0x5a4d and filesize < 200KB and all of them and not filename matches /aswVmm/i
}