Added rats.yara to index.yara
Added rats.yara to index.yara

Beercow/viper,rommelfs/viper,rommelfs/viper,jahrome/viper,postfix/viper-1,MeteorAdminz/viper,jack51706/viper,postfix/viper-1,jorik041/viper,MeteorAdminz/viper,S2R2/viper,kevthehermit/viper,cwtaylor/viper,Beercow/viper,S2R2/viper,cwtaylor/viper,Beercow/viper,jorik041/viper,kevthehermit/viper,jack51706/viper,jahrome/viper