14 lines
804 B
Plaintext
14 lines
804 B
Plaintext
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rule TrojanDownloader_O97M_Obfuse_YAJ_MTB{
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meta:
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description = "TrojanDownloader:O97M/Obfuse.YAJ!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 01 00 "
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strings :
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$a_01_0 = {44 65 63 6f 64 65 42 61 73 65 36 34 28 52 61 6e 67 65 28 22 41 33 22 29 2e 56 61 6c 75 65 } //01 00 DecodeBase64(Range("A3").Value
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$a_01_1 = {43 72 65 61 74 65 4f 62 6a 65 63 74 28 44 65 63 6f 64 65 42 61 73 65 36 34 28 52 61 6e 67 65 28 22 41 34 22 29 2e 56 61 6c 75 65 } //01 00 CreateObject(DecodeBase64(Range("A4").Value
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$a_01_2 = {62 69 6e 2e 62 61 73 65 36 34 22 3a 20 2e 74 65 78 74 20 3d 20 62 36 34 } //01 00 bin.base64": .text = b64
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$a_01_3 = {46 75 6e 63 74 69 6f 6e 20 44 65 63 6f 64 65 42 61 73 65 36 34 28 62 36 34 24 29 } //00 00 Function DecodeBase64(b64$)
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condition:
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any of ($a_*)
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} |