19 lines
1.6 KiB
Plaintext
19 lines
1.6 KiB
Plaintext
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rule TrojanDownloader_O97M_Donoff_SMI_MTB{
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meta:
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description = "TrojanDownloader:O97M/Donoff.SMI!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,0a 00 0a 00 09 00 00 "
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strings :
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$a_01_0 = {53 65 74 20 46 53 4f 20 3d 20 43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 53 63 72 69 70 74 69 6e 67 2e 46 69 6c 65 53 79 73 74 65 6d 4f 62 6a 65 63 74 22 29 } //1 Set FSO = CreateObject("Scripting.FileSystemObject")
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$a_03_1 = {46 53 4f 2e 43 6f 70 79 46 69 6c 65 20 [0-06] 2c 20 [0-06] 2c 20 31 } //1
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$a_03_2 = {4f 70 65 6e 20 [0-07] 20 46 6f 72 20 4f 75 74 70 75 74 20 41 73 20 23 31 } //1
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$a_01_3 = {41 73 20 4e 65 77 20 53 68 65 6c 6c 33 32 2e 53 68 65 6c 6c } //1 As New Shell32.Shell
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$a_03_4 = {43 61 6c 6c 20 [0-07] 2e 53 68 65 6c 6c 45 78 65 63 75 74 65 28 [0-07] 2c 20 [0-07] 2c 20 22 20 22 2c 20 53 57 5f 48 49 44 45 29 } //1
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$a_01_5 = {28 66 72 6d 2e 70 61 79 6c 6f 61 64 2e 74 65 78 74 29 } //1 (frm.payload.text)
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$a_03_6 = {41 70 70 6c 69 63 61 74 69 6f 6e 2e 52 75 6e 20 22 [0-07] 22 2c 20 [0-06] 2c 20 [0-06] 20 26 20 22 6d 61 74 20 3a 20 22 22 22 20 26 20 [0-06] 20 26 20 22 22 22 22 } //1
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$a_01_7 = {3d 20 53 70 6c 69 74 28 61 57 59 4a 6a 28 66 72 6d 2e 70 61 74 68 73 2e 74 65 78 74 29 2c 20 22 7c 22 29 } //3 = Split(aWYJj(frm.paths.text), "|")
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$a_01_8 = {53 70 6c 69 74 28 61 75 36 76 73 54 28 66 72 6d 2e 70 61 74 68 73 2e 74 65 78 74 29 2c 20 22 7c 22 29 } //3 Split(au6vsT(frm.paths.text), "|")
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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_01_3 & 1)*1+(#a_03_4 & 1)*1+(#a_01_5 & 1)*1+(#a_03_6 & 1)*1+(#a_01_7 & 1)*3+(#a_01_8 & 1)*3) >=10
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} |