YARA Detection Rule: PUA_VULN_Driver_Proxydrvsys_Nn_0B20
Repository: Neo23x0/signature-base
Detects: Detects vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - ProxyDrv.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]96f7795e004e004e52a0901f5668002d9a7152a87a0b5e8f65874ef6 } /* FileDescription NN */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]96f7795eff086b666c49ff097f517edc6280672f[PII_REDACTED]6c53f8 } /* CompanyName  */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002c0039002c0035002c[PII_REDACTED][PII_REDACTED]006c[PII_REDACTED]620079003a[PII_REDACTED]69006e[PII_REDACTED]4b } /* FileVersion builtbyWinDDK */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0032002e0035002e0031002e0030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]6f[PII_REDACTED][PII_REDACTED]002e[PII_REDACTED]73 } /* InternalName ProxyDrvsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]96f7795e004e004e52a0901f5668 } /* ProductName NN */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED]6f[PII_REDACTED][PII_REDACTED]002e[PII_REDACTED]73 } /* OriginalFilename 

Detection condition:
uint16(0) == 0x5a4d and filesize < 100KB and all of them

Full rule:
rule PUA_VULN_Driver_Proxydrvsys_Nn_0B20 {
	meta:
		description = "Detects vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - ProxyDrv.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "0b205838a8271daea89656b1ec7c5bb7244c42a8b8000d7697e92095da6b9b94"
		date = "2024-08-07"
		score = 40
		id = "cf4d7446-a97e-58b5-aea7-c77516abacf5"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8]96f7795e004e004e52a0901f5668002d9a7152a87a0b5e8f65874ef6 } /* FileDescription NN */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]96f7795eff086b666c49ff097f517edc6280672f[PII_REDACTED]6c53f8 } /* CompanyName  */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0031002c0039002c0035002c[PII_REDACTED][PII_REDACTED]006c[PII_REDACTED]620079003a[PII_REDACTED]69006e[PII_REDACTED]4b } /* FileVersion builtbyWinDDK */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0032002e0035002e0031002e0030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED]6f[PII_REDACTED][PII_REDACTED]002e[PII_REDACTED]73 } /* InternalName ProxyDrvsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]96f7795e004e004e52a0901f5668 } /* ProductName NN */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED]6f[PII_REDACTED][PII_REDACTED]002e[PII_REDACTED]73 } /* OriginalFilename ProxyDrvsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8]0043006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]77002e004e006e002e0043006f006d } /* LegalCopyright CopyrightWwwNnCom */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them
}