YARA Detection Rule: PUA_VULN_Renamed_Driver_Microfocus_Microfocusxtier_5351
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - nscm.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][PII_REDACTED][PII_REDACTED][PII_REDACTED]0043006f006e[PII_REDACTED][PII_REDACTED]004d0061006e[PII_REDACTED]650072 } /* FileDescription XTierSecurityContextManager */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]004d[PII_REDACTED]72006f[PII_REDACTED]6f[PII_REDACTED]73 } /* CompanyName MicroFocus */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0033002e0031002e[PII_REDACTED]2e0030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0033002e0031002e00310032 } /* ProductVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]004d[PII_REDACTED]72006f[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]650072 } /* ProductName MicroFocusXTier */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]006e[PII_REDACTED]6d002e[PII_REDACTED]73 } /* OriginalFilename nscmsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8][PII_REDACTED][PII_REDACTED]

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

Full rule:
rule PUA_VULN_Renamed_Driver_Microfocus_Microfocusxtier_5351 {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - nscm.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "5351c81b4ec5a0d79c39d24bac7600d10eac30c13546fde43d23636b3f421e7c"
		date = "2024-08-07"
		score = 70
		id = "084f65a0-6a2a-59b6-9a5a-3f45a4f5c892"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0043006f006e[PII_REDACTED][PII_REDACTED]004d0061006e[PII_REDACTED]650072 } /* FileDescription XTierSecurityContextManager */
		$ = { 0043006f006d[PII_REDACTED]6e0079004e0061006d0065[1-8]004d[PII_REDACTED]72006f[PII_REDACTED]6f[PII_REDACTED]73 } /* CompanyName MicroFocus */
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED]0069006f006e[1-8]0033002e0031002e[PII_REDACTED]2e0030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8]0033002e0031002e00310032 } /* ProductVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8]004d[PII_REDACTED]72006f[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]650072 } /* ProductName MicroFocusXTier */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8]006e[PII_REDACTED]6d002e[PII_REDACTED]73 } /* OriginalFilename nscmsys */
		$ = { 004c[PII_REDACTED]61006c0043006f[PII_REDACTED][PII_REDACTED]00680074[1-8][PII_REDACTED][PII_REDACTED]006f[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]2d[PII_REDACTED]310037002c0020004d[PII_REDACTED]72006f[PII_REDACTED]6f[PII_REDACTED]73002e[PII_REDACTED]6c006c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]0064002e } /* LegalCopyright CCopyrightMicroFocusAllRightsReserved */
	condition:
		uint16(0) == 0x5a4d and filesize < 100KB and all of them and not filename matches /nscm/i
}