13 lines
653 B
Text
13 lines
653 B
Text
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rule obfuscated_dde
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{
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meta:
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reference = "https://blog.reversinglabs.com/blog/cvs-dde-exploits-and-obfuscation"
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author = "ReversingLabs"
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strings:
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$dde_command_1 = /[=+-]+[ 0-9A-Za-z_\"\&\^\-\=\/\+\(\x00]*(((c|C)[\x00]*(m|M)[\x00]*(d|D)[\x00]*\|)|((m|M)[\x00]*(s|S)[\x00]*(i|I|e|E)[\x00]*(e|E|x|X)[\x00]*(x|X|c|C)[\x00]*(e|E)[\x00]*(c|C|l|L)[\x00]*\|)|((r|R)[\x00]*(u|U|e|E)[\x00]*(n|N|g|G)[\x00]*(d|D|s|S)[\x00]*(l|L|v|V)[\x00]*(l|L|r|R)[\x00]*3[\x00]*2[0-9A-Za-z\x00]*\|)|((c|C)[\x00]*(e|E)[\x00]*(r|R)[\x00]*(t|T)[\x00]*(u|U)[\x00]*(t|T)[\x00]*(i|I)[\x00]*(l|L)[0-9A-Za-z\x00]*\|))[\x00]*\'/
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condition:
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$dde_command_1
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}
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