rule Backdoor_Win32_Brambul_A{ meta: description = "Backdoor:Win32/Brambul.A,SIGNATURE_TYPE_PEHSTR_EXT,04 00 03 00 04 00 00 01 00 " strings : $a_01_0 = {68 ba 00 00 00 66 c7 44 24 04 02 00 c7 44 24 08 00 00 00 00 } //01 00 $a_01_1 = {83 f8 ff 75 08 c7 44 24 18 34 42 4d 53 8b 4c 24 18 81 e9 31 42 4d 53 } //01 00 $a_01_2 = {b3 63 bf 01 00 00 00 c6 44 24 0d 3a c6 44 24 0e 5c } //01 00 $a_01_3 = {ff d6 48 83 f8 05 77 08 } //00 00 condition: any of ($a_*) }