15 lines
1.1 KiB
Plaintext
15 lines
1.1 KiB
Plaintext
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rule TrojanDownloader_O97M_Obfuse_DN{
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meta:
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description = "TrojanDownloader:O97M/Obfuse.DN,SIGNATURE_TYPE_MACROHSTR_EXT,03 00 03 00 05 00 00 "
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strings :
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$a_03_0 = {3d 20 47 65 74 4f 62 6a 65 63 74 28 [0-10] 20 2b 20 [0-10] 20 2b 20 [0-10] 29 2e 43 72 65 61 74 65 ?? 28 28 } //2
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$a_03_1 = {2b 20 22 77 22 20 2b 20 [0-10] 20 2b 20 22 69 6e 6d 67 6d 74 22 20 2b 20 22 73 3a 57 69 6e 33 32 5f 50 72 22 20 2b 20 22 6f 63 65 73 73 53 74 61 72 74 75 70 22 } //1
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$a_03_2 = {2b 20 22 77 22 20 2b 20 [0-10] 20 2b 20 22 69 6e 6d 67 6d 74 22 20 2b 20 22 73 3a 57 69 6e 33 32 5f 50 72 22 20 2b 20 22 6f 63 65 73 73 53 74 22 20 2b 20 22 61 72 74 75 70 22 } //1
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$a_03_3 = {2b 20 22 69 6e 6d 67 6d 74 22 20 2b 20 [0-10] 20 2b 20 22 73 3a 57 69 6e 33 32 5f 50 72 22 20 2b 20 22 6f 63 65 73 73 53 74 22 20 2b 20 22 61 72 74 75 70 22 } //1
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$a_03_4 = {2b 20 22 77 69 22 20 2b 20 [0-10] 29 20 2b 20 22 6e 6d 22 20 2b 20 22 67 6d 74 22 20 2b 20 [0-10] 20 2b 20 22 73 3a 57 69 6e 33 32 5f 50 72 22 20 2b 20 22 6f 63 65 73 73 53 74 22 20 2b 20 22 61 72 74 75 70 22 } //1
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condition:
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((#a_03_0 & 1)*2+(#a_03_1 & 1)*1+(#a_03_2 & 1)*1+(#a_03_3 & 1)*1+(#a_03_4 & 1)*1) >=3
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} |