(YARA) YARA_uac_bypass

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rule UNPROTECT_UAC_Bypass_Strings {
    meta:
        description = "Rule to detect UAC bypass attempt by regarding strings"
        author = "Thibault Seret"
        date = "2020-04-10"
    strings:
        $s1 = "SeIncreaseQuotaPrivilege" ascii fullword
        $s2 = "SeSecurityPrivilege" ascii fullword
        $s3 = "SeTakeOwnershipPrivilege" ascii fullword
        $s4 = "SeLoadDriverPrivilege" ascii fullword
        $s5 = "SeSystemProfilePrivilege" ascii fullword
        $s6 = "SeSystemtimePrivilege" ascii fullword
        $s7 = "SeProfileSingleProcessPrivilege" ascii fullword
        $s8 = "SeIncreaseBasePriorityPrivilege" ascii fullword
        $s9 = "SeCreatePagefilePrivilege" ascii fullword
        $s10 = "SeBackupPrivilege" ascii fullword
        $s11 = "SeRestorePrivilege" ascii fullword
        $s12 = "SeShutdownPrivilege" ascii fullword
        $s13 = "SeDebugPrivilege" ascii fullword
        $s14 = "SeSystemEnvironmentPrivilege" ascii fullword
        $s15 = "SeChangeNotifyPrivilege" ascii fullword
        $s16 = "SeRemoteShutdownPrivilege" ascii fullword
        $s17 = "SeUndockPrivilege" ascii fullword
        $s18 = "SeManageVolumePrivilege" ascii fullword
        $s19 = "SeImpersonatePrivilege" ascii fullword
        $s20 = "SeCreateGlobalPrivilege" ascii fullword
        $s21 = "SeIncreaseWorkingSetPrivilege" ascii fullword
        $s22 = "SeTimeZonePrivilege" ascii fullword
        $s23 = "SeCreateSymbolicLinkPrivilege" ascii fullword
    condition:
        5 of them
}

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