rule Trojan_WinNT_Bibei_B{ meta: description = "Trojan:WinNT/Bibei.B,SIGNATURE_TYPE_PEHSTR_EXT,02 00 02 00 02 00 00 01 00 " strings : $a_01_0 = {89 45 f8 c7 45 f4 12 02 00 00 6a 00 8b 4d f8 } //01 00 $a_03_1 = {eb 02 eb ab 90 02 1f 2e 00 73 00 79 00 73 00 00 00 90 00 } //00 00 condition: any of ($a_*) }