DefenderYara/Trojan/O97M/Clayslide/Trojan_O97M_Clayslide_A.yar

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rule Trojan_O97M_Clayslide_A{
meta:
description = "Trojan:O97M/Clayslide.A,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 05 00 00 01 00 "
strings :
$a_00_0 = {50 72 69 76 61 74 65 20 53 75 62 20 57 6f 72 6b 62 6f 6f 6b 5f 4f 70 65 6e } //01 00 Private Sub Workbook_Open
$a_00_1 = {43 61 6c 6c 20 66 69 72 65 65 79 65 5f 49 6e 69 74 } //01 00 Call fireeye_Init
$a_00_2 = {53 65 74 20 77 73 73 20 3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 57 53 } //01 00 Set wss = CreateObject("WS
$a_00_3 = {77 73 73 2e 52 75 6e 20 63 6d } //01 00 wss.Run cm
$a_00_4 = {41 63 74 69 76 65 57 6f 72 6b 62 6f 6f 6b 2e 57 6f 72 6b 73 68 65 65 74 73 28 31 29 2e 56 69 73 69 62 6c 65 20 3d 20 46 61 6c 73 65 } //00 00 ActiveWorkbook.Worksheets(1).Visible = False
condition:
any of ($a_*)
}