15 lines
841 B
Plaintext
15 lines
841 B
Plaintext
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rule TrojanDownloader_O97M_Obfuse_RD_MTB{
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meta:
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description = "TrojanDownloader:O97M/Obfuse.RD!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
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strings :
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$a_03_0 = {41 63 74 69 76 65 44 6f 63 75 6d 65 6e 74 2e 56 61 72 69 61 62 6c 65 73 28 22 [0-15] 22 29 2e 56 61 6c 75 65 } //1
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$a_03_1 = {3d 20 32 20 54 6f 20 4c 65 6e 28 [0-12] 29 20 53 74 65 70 20 32 } //1
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$a_03_2 = {26 20 52 69 67 68 74 28 4c 65 66 74 28 [0-12] 2c 20 [0-12] 29 2c 20 32 29 } //1
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$a_03_3 = {43 68 72 28 30 20 2d 20 41 73 63 28 22 [0-01] 22 29 20 2b 20 41 73 63 28 [0-25] 20 2b 20 41 73 63 28 22 [0-01] 22 29 20 2d } //1
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$a_03_4 = {26 20 43 68 72 28 [0-15] 28 [0-15] 28 [0-12] 2c 20 [0-10] 29 2c 20 [0-02] 29 29 [0-70] 4e 65 78 74 } //1
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condition:
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((#a_03_0 & 1)*1+(#a_03_1 & 1)*1+(#a_03_2 & 1)*1+(#a_03_3 & 1)*1+(#a_03_4 & 1)*1) >=5
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} |