YARA Detection Rule: PUA_VULN_Renamed_Driver_Proxydrvsys_Nn_C0E7
Repository: Neo23x0/signature-base
Detects: Detects renamed 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]0031002c0039002c0035002c0033 } /* FileVersion  */
		$ = {[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

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

Full rule:
rule PUA_VULN_Renamed_Driver_Proxydrvsys_Nn_C0E7 {
	meta:
		description = "Detects renamed 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 = "c0e74f565237c32989cb81234f4b5ad85f9dd731c112847c0a143d771021cb99"
		date = "2024-08-07"
		score = 70
		id = "eae581bc-a856-5ea4-b088-8a3975c56884"
	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]0031002c0039002c0035002c0033 } /* FileVersion  */
		$ = {[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 < 200KB and all of them and not filename matches /ProxyDrv/i
}