16 lines
971 B
Plaintext
16 lines
971 B
Plaintext
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rule TrojanDownloader_O97M_Powdow_BC_MTB{
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meta:
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description = "TrojanDownloader:O97M/Powdow.BC!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 06 00 00 "
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strings :
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$a_03_0 = {2e 44 61 74 61 54 79 70 65 20 3d 20 22 62 69 6e 2e 62 61 73 65 36 34 22 90 0c 02 00 2e 54 65 78 74 } //1
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$a_01_1 = {2e 63 72 65 61 74 65 45 6c 65 6d 65 6e 74 28 22 62 36 34 22 29 } //1 .createElement("b64")
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$a_01_2 = {41 6c 69 61 73 20 22 55 52 4c 44 6f 77 6e 6c 6f 61 64 54 6f 46 69 6c 65 41 22 20 28 20 5f } //1 Alias "URLDownloadToFileA" ( _
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$a_03_3 = {28 53 74 72 52 65 76 65 72 73 65 28 22 70 6d 74 22 29 29 20 26 20 22 5c [0-05] 2e 74 6d 70 22 } //1
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$a_03_4 = {44 69 6d 20 61 72 72 28 [0-02] 20 54 6f 20 [0-02] 29 90 0c 02 00 61 72 72 28 [0-02] 29 20 3d } //1
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$a_03_5 = {2e 43 72 65 61 74 65 20 [0-03] 2e [0-04] 28 29 20 2b 20 22 20 22 20 2b } //1
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condition:
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((#a_03_0 & 1)*1+(#a_01_1 & 1)*1+(#a_01_2 & 1)*1+(#a_03_3 & 1)*1+(#a_03_4 & 1)*1+(#a_03_5 & 1)*1) >=6
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} |