YARA Detection Rule: PUA_VULN_Renamed_Driver_Avastsoftware_Aswarpotsys_Avastantivirus_D5C4
Repository: Neo23x0/signature-base
Detects: Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - aswArPot.sys, avgArPot.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]6e[PII_REDACTED]200072006f006f0074006b00690074 } /* FileDescription Avastantirootkit */
		$ = { 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][PII_REDACTED]2e0036002e[PII_REDACTED]370039002e0030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8][PII_REDACTED]2e0036002e[PII_REDACTED]370039002e0030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0050006f0074002e[PII_REDACTED]73 } /* InternalName aswArPotsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]6e[PII_REDACTED][PII_REDACTED][PII_REDACTED]20 } /* ProductName AvastAntivirus */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0050006f0

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

Full rule:
rule PUA_VULN_Renamed_Driver_Avastsoftware_Aswarpotsys_Avastantivirus_D5C4 {
	meta:
		description = "Detects renamed vulnerable driver mentioned in LOLDrivers project using VersionInfo values from the PE header - aswArPot.sys, avgArPot.sys"
		author = "Florian Roth"
		reference = "https://github.com/magicsword-io/LOLDrivers"
		hash = "d5c4ff35eaa74ccdb80c7197d3d113c9cd38561070f2aa69c0affe8ed84a77c9"
		date = "2024-08-07"
		score = 70
		id = "ee625dbd-bb74-5c20-bfd9-05a50b0ab728"
	strings:
		$ = {[PII_REDACTED]6c[PII_REDACTED][PII_REDACTED][PII_REDACTED][PII_REDACTED]006f006e[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]6e[PII_REDACTED]200072006f006f0074006b00690074 } /* FileDescription Avastantirootkit */
		$ = { 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][PII_REDACTED]2e0036002e[PII_REDACTED]370039002e0030 } /* FileVersion  */
		$ = {[PII_REDACTED]6f[PII_REDACTED][PII_REDACTED][PII_REDACTED]730069006f006e[1-8][PII_REDACTED]2e0036002e[PII_REDACTED]370039002e0030 } /* ProductVersion  */
		$ = { 0049006e[PII_REDACTED]72006e0061006c004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0050006f0074002e[PII_REDACTED]73 } /* InternalName aswArPotsys */
		$ = {[PII_REDACTED]6f[PII_REDACTED]630074004e0061006d0065[1-8][PII_REDACTED][PII_REDACTED][PII_REDACTED]6e[PII_REDACTED][PII_REDACTED][PII_REDACTED]20 } /* ProductName AvastAntivirus */
		$ = { 004f[PII_REDACTED]670069006e0061006c[PII_REDACTED]6c0065006e0061006d0065[1-8][PII_REDACTED][PII_REDACTED]0050006f0074002e[PII_REDACTED]73 } /* OriginalFilename aswArPotsys */
		$ = { 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 /aswArPot/i and not filename matches /avgArPot/i
}