17 lines
796 B
Plaintext
17 lines
796 B
Plaintext
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rule TrojanDownloader_O97M_Obfuse_LF_MTB{
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meta:
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description = "TrojanDownloader:O97M/Obfuse.LF!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,07 00 07 00 07 00 00 "
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strings :
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$a_01_0 = {3d 20 22 2e 78 73 6c 22 } //1 = ".xsl"
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$a_01_1 = {3d 20 22 61 70 70 64 61 74 61 22 } //1 = "appdata"
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$a_01_2 = {3d 20 22 26 68 22 } //1 = "&h"
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$a_01_3 = {3d 20 4e 65 77 20 57 73 68 53 68 65 6c 6c } //1 = New WshShell
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$a_03_4 = {26 20 43 68 72 28 [0-15] 20 26 20 4d 69 64 24 28 } //1
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$a_01_5 = {44 65 62 75 67 2e 50 72 69 6e 74 20 45 72 72 6f 72 28 } //1 Debug.Print Error(
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$a_03_6 = {4f 70 65 6e 20 [0-15] 20 46 6f 72 20 4f 75 74 70 75 74 20 41 73 20 23 } //1
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condition:
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((#a_01_0 & 1)*1+(#a_01_1 & 1)*1+(#a_01_2 & 1)*1+(#a_01_3 & 1)*1+(#a_03_4 & 1)*1+(#a_01_5 & 1)*1+(#a_03_6 & 1)*1) >=7
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} |