28 lines
1.5 KiB
Plaintext
28 lines
1.5 KiB
Plaintext
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rule TrojanDownloader_O97M_Obfuse_RZ_MTB{
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meta:
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description = "TrojanDownloader:O97M/Obfuse.RZ!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,04 00 04 00 04 00 00 "
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strings :
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$a_03_0 = {26 20 43 68 72 28 43 49 6e 74 28 41 63 74 69 76 65 44 6f 63 75 6d 65 6e 74 2e 56 61 72 69 61 62 6c 65 73 28 22 [0-18] 22 29 2e 56 61 6c 75 65 20 26 20 [0-18] 29 20 2d 20 [0-02] 29 } //1
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$a_03_1 = {41 63 74 69 76 65 44 6f 63 75 6d 65 6e 74 2e 56 61 72 69 61 62 6c 65 73 28 22 [0-18] 22 29 2e 56 61 6c 75 65 } //1
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$a_01_2 = {53 68 65 6c 6c 20 } //1 Shell
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$a_01_3 = {4f 70 74 69 6f 6e 20 45 78 70 6c 69 63 69 74 } //1 Option Explicit
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condition:
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((#a_03_0 & 1)*1+(#a_03_1 & 1)*1+(#a_01_2 & 1)*1+(#a_01_3 & 1)*1) >=4
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}
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rule TrojanDownloader_O97M_Obfuse_RZ_MTB_2{
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meta:
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description = "TrojanDownloader:O97M/Obfuse.RZ!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
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strings :
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$a_03_0 = {63 2e 74 6f 70 34 74 6f 70 2e 69 6f 2f 70 5f 31 36 38 33 71 31 78 73 68 31 2e 6a 70 67 22 90 0a 34 00 2e 4f 70 65 6e 20 22 47 45 54 22 2c 20 22 68 74 74 70 73 3a 2f 2f } //1
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$a_00_1 = {45 6e 76 69 72 6f 6e 28 22 41 70 70 44 41 54 41 22 29 } //1 Environ("AppDATA")
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$a_03_2 = {2e 73 61 76 65 74 6f 66 69 6c 65 20 [0-05] 20 26 20 22 5c 61 76 67 2e 76 62 65 22 } //1
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$a_00_3 = {43 72 65 61 74 65 4f 62 6a 65 63 74 28 22 57 53 63 72 69 70 74 2e 53 68 65 6c 6c 22 29 } //1 CreateObject("WScript.Shell")
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$a_00_4 = {2e 52 75 6e 20 22 61 76 67 2e 76 62 65 } //1 .Run "avg.vbe
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condition:
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((#a_03_0 & 1)*1+(#a_00_1 & 1)*1+(#a_03_2 & 1)*1+(#a_00_3 & 1)*1+(#a_00_4 & 1)*1) >=5
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} |