14 lines
873 B
Plaintext
14 lines
873 B
Plaintext
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rule TrojanDownloader_O97M_Obfuse_MAB_MTB{
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meta:
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description = "TrojanDownloader:O97M/Obfuse.MAB!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
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strings :
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$a_01_0 = {73 74 72 20 3d 20 73 74 72 20 26 20 22 30 66 31 32 31 66 31 32 33 66 39 30 66 35 34 66 35 33 22 } //1 str = str & "0f121f123f90f54f53"
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$a_03_1 = {53 68 65 6c 6c 20 66 6c 64 72 5f 6e 61 6d 65 [0-28] 20 26 20 66 69 6c 65 5f 6e 61 6d 65 [0-28] 20 26 20 22 2e 65 22 20 26 20 22 78 65 22 2c 20 76 62 4e 6f 72 6d 61 6c 4e 6f 46 6f 63 75 73 } //1
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$a_03_2 = {3d 20 53 70 6c 69 74 28 55 73 65 72 46 6f 72 6d 31 2e 54 65 78 74 42 6f 78 [0-02] 2e 54 65 78 74 2c 20 22 66 22 29 } //1
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$a_03_3 = {53 68 65 6c 6c 20 66 76 [0-28] 20 26 20 22 78 65 22 2c 20 76 62 4e 6f 72 6d 61 6c 4e 6f 46 6f 63 75 73 } //1
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condition:
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((#a_01_0 & 1)*1+(#a_03_1 & 1)*1+(#a_03_2 & 1)*1+(#a_03_3 & 1)*1) >=4
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} |