DefenderYara/TrojanDownloader/O97M/Powdow/TrojanDownloader_O97M_Powdo...

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rule TrojanDownloader_O97M_Powdow_KT_MTB{
meta:
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description = "TrojanDownloader:O97M/Powdow.KT!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
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strings :
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$a_03_0 = {65 78 70 6c 6f 72 65 72 2e 65 78 65 20 63 3a 5c 70 72 6f 67 72 61 6d 64 61 74 61 5c [0-25] 2e 68 74 61 22 } //1
$a_03_1 = {2e 65 78 65 63 20 70 28 [0-07] 29 } //1
$a_03_2 = {3d 20 53 70 6c 69 74 28 70 28 66 72 6d 2e [0-07] 29 2c 20 22 20 22 29 } //1
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$a_01_3 = {66 72 6d 2e 62 75 74 74 6f 6e 31 5f 43 6c 69 63 6b } //1 frm.button1_Click
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$a_03_4 = {3d 20 52 65 70 6c 61 63 65 28 [0-19] 2c 20 [0-19] 2c 20 [0-19] 29 } //1
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condition:
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((#a_03_0 & 1)*1+(#a_03_1 & 1)*1+(#a_03_2 & 1)*1+(#a_01_3 & 1)*1+(#a_03_4 & 1)*1) >=5
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}