# $ cat SCORE.yara
rule SCORE_ExternalMethods_No_Payable
{
    strings:
        $external = "@external" ascii
        $payable = "@payable" ascii
        $def = "def " ascii

    condition:
        #external == 2
    and #payable == 0
    and (#def == 5 or #def == 6)
}

# $ yara64 SCORE.yara -r ./SCORE > ./analysis/3.SimilarSCOREsPattern.txt