16 lines
649 B
Plaintext
16 lines
649 B
Plaintext
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rule Trojan_O97M_DowMShta_B{
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meta:
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description = "Trojan:O97M/DowMShta.B,SIGNATURE_TYPE_CMDHSTR_EXT,0a 00 0a 00 06 00 00 "
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strings :
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$a_80_0 = {63 6d 64 20 2f 63 20 6d 73 5e } //cmd /c ms^ 10
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$a_80_1 = {63 6d 64 20 2f 63 20 6d 5e } //cmd /c m^ 10
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$a_80_2 = {73 74 61 72 74 20 6d 73 5e } //start ms^ 10
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$a_80_3 = {73 74 61 72 74 20 6d 5e } //start m^ 10
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$a_80_4 = {73 74 61 72 74 20 6d 73 68 74 61 } //start mshta -100
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$a_80_5 = {63 6d 64 20 2f 63 20 6d 73 68 74 61 } //cmd /c mshta -100
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condition:
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((#a_80_0 & 1)*10+(#a_80_1 & 1)*10+(#a_80_2 & 1)*10+(#a_80_3 & 1)*10+(#a_80_4 & 1)*-100+(#a_80_5 & 1)*-100) >=10
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} |