2017-02-07 08:20:10 +00:00
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/*
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Yara Rule Set
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Author: Florian Roth
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Date: 2017-02-07
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Identifier: Rotten Potato
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*/
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/* Rule Set ----------------------------------------------------------------- */
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rule RottenPotato_Potato {
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meta:
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description = "Detects a component of privilege escalation tool Rotten Potato - file Potato.exe"
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2018-08-26 10:47:41 +00:00
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license = "https://creativecommons.org/licenses/by-nc/4.0/"
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2017-02-07 08:20:10 +00:00
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author = "Florian Roth"
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reference = "https://github.com/foxglovesec/RottenPotato"
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date = "2017-02-07"
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score = 90
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hash1 = "59cdbb21d9e487ca82748168682f1f7af3c5f2b8daee3a09544dd58cbf51b0d5"
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strings:
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$x1 = "Potato.exe -ip <ip>" fullword wide
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$x2 = "-enable_httpserver true -enable_spoof true" fullword wide
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$x3 = "/C schtasks.exe /Create /TN omg /TR" fullword wide
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$x4 = "-enable_token true -enable_dce true" fullword wide
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$x5 = "DNS lookup succeeds - UDP Exhaustion failed!" fullword wide
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$x6 = "DNS lookup fails - UDP Exhaustion worked!" fullword wide
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$x7 = "\\obj\\Release\\Potato.pdb" fullword ascii
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$x8 = "function FindProxyForURL(url,host){if (dnsDomainIs(host, \"localhost\")) return \"DIRECT\";" fullword wide
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$s1 = "\"C:\\Windows\\System32\\cmd.exe\" /K start" fullword wide
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condition:
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( uint16(0) == 0x5a4d and filesize < 200KB and 1 of ($x*) ) or ( 2 of them )
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}
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