15 lines
722 B
Plaintext
15 lines
722 B
Plaintext
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rule TrojanDownloader_O97M_Obfuse_GK{
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meta:
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description = "TrojanDownloader:O97M/Obfuse.GK,SIGNATURE_TYPE_MACROHSTR_EXT,05 00 05 00 05 00 00 "
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strings :
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$a_01_0 = {53 75 62 20 41 75 74 6f 4f 70 65 6e 28 29 } //1 Sub AutoOpen()
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$a_03_1 = {43 72 65 61 74 65 4f 62 6a 65 63 74 28 [0-14] 20 2b 20 [0-14] 20 2b 20 [0-10] 29 2e 52 75 6e 24 20 [0-30] 20 2b 20 [0-12] 2c 20 76 62 48 69 64 65 } //1
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$a_01_2 = {2b 20 22 70 74 2e 53 22 20 2b 20 22 68 65 6c 6c 22 } //1 + "pt.S" + "hell"
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$a_01_3 = {2b 20 22 57 73 63 72 69 22 } //1 + "Wscri"
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$a_03_4 = {2a 20 43 53 74 72 28 [0-07] 20 2f 20 53 67 6e 28 } //1
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condition:
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((#a_01_0 & 1)*1+(#a_03_1 & 1)*1+(#a_01_2 & 1)*1+(#a_01_3 & 1)*1+(#a_03_4 & 1)*1) >=5
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} |