rule TrojanDownloader_O97M_Donoff_BT{ meta: description = "TrojanDownloader:O97M/Donoff.BT,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 01 00 " strings : $a_01_0 = {3d 20 49 6e 53 74 72 28 31 2c } //01 00 $a_01_1 = {3d 20 4d 69 64 28 } //01 00 $a_01_2 = {3d 20 4c 65 6e 28 } //01 00 $a_03_3 = {2e 53 70 61 77 6e 49 6e 73 74 61 6e 63 65 5f 0d 0a 90 02 0f 2e 53 68 6f 77 57 69 6e 64 6f 77 20 3d 20 30 90 00 } //01 00 $a_03_4 = {20 3d 20 47 65 74 4f 62 6a 65 63 74 28 90 02 0f 29 0d 0a 90 02 0f 2e 43 72 65 61 74 65 90 00 } //00 00 condition: any of ($a_*) }