rule Backdoor_WinNT_Phdet_A{ meta: description = "Backdoor:WinNT/Phdet.A,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 09 00 00 01 00 " strings : $a_01_0 = {68 7e 4b 54 1a } //01 00 $a_01_1 = {68 e0 3c 96 a2 } //01 00 $a_01_2 = {68 31 a1 44 bc } //01 00 $a_01_3 = {c7 45 f4 6e 74 6f 73 } //01 00 $a_01_4 = {8a 1c 38 30 1c 0e } //01 00 $a_01_5 = {8b 46 28 03 c3 ff d0 } //01 00 $a_01_6 = {ff d0 3d 04 00 00 c0 } //01 00 $a_01_7 = {0f 01 4c 24 04 8b 44 24 06 } //01 00 $a_01_8 = {f3 aa 8b 02 25 ff ff ff fd 0d 00 00 00 08 89 02 } //00 00 condition: any of ($a_*) }