rule Backdoor_Win32_Farfli_DB{ meta: description = "Backdoor:Win32/Farfli.DB,SIGNATURE_TYPE_PEHSTR_EXT,02 00 02 00 02 00 00 " strings : $a_01_0 = {89 45 e4 b8 4d 5a 00 00 c6 07 4d c6 47 01 5a 66 39 07 74 07 33 c0 e9 10 01 00 00 } //1 $a_01_1 = {8a 14 01 80 ea 26 80 f2 29 88 14 01 41 3b ce 7c ef } //1 condition: ((#a_01_0 & 1)*1+(#a_01_1 & 1)*1) >=2 }