16 lines
958 B
Plaintext
16 lines
958 B
Plaintext
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rule TrojanDownloader_O97M_Dridex_DBK_MTB{
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meta:
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description = "TrojanDownloader:O97M/Dridex.DBK!MTB,SIGNATURE_TYPE_MACROHSTR_EXT,06 00 06 00 06 00 00 "
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strings :
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$a_01_0 = {3d 20 49 73 44 61 74 65 28 } //1 = IsDate(
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$a_01_1 = {3d 20 4a 6f 69 6e 28 41 72 72 61 79 28 } //1 = Join(Array(
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$a_03_2 = {49 73 45 72 72 6f 72 20 28 22 [0-14] 22 29 } //1
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$a_03_3 = {3d 20 52 65 70 6c 61 63 65 28 [0-23] 2e [0-14] 2e 54 65 78 74 2c 20 22 [0-14] 22 2c 20 22 22 29 } //1
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$a_03_4 = {2e 43 72 65 61 74 65 20 [0-1e] 2e [0-23] 20 26 20 43 68 72 28 33 34 29 20 26 20 41 70 70 6c 69 63 61 74 69 6f 6e 2e 41 63 74 69 76 65 57 6f 72 6b 62 6f 6f 6b 2e 50 61 74 68 } //1
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$a_03_5 = {4f 70 65 6e 20 41 70 70 6c 69 63 61 74 69 6f 6e 2e 41 63 74 69 76 65 57 6f 72 6b 62 6f 6f 6b 2e 50 61 74 68 20 26 20 [0-16] 2e [0-0f] 20 46 6f 72 } //1
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condition:
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((#a_01_0 & 1)*1+(#a_01_1 & 1)*1+(#a_03_2 & 1)*1+(#a_03_3 & 1)*1+(#a_03_4 & 1)*1+(#a_03_5 & 1)*1) >=6
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} |