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26 lines
741 B
Plaintext
26 lines
741 B
Plaintext
/*
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Yara Rule Set
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Author: FLorian Roth
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Date: 2016-12-08
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Identifier: Modified SysInternals Tools
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*/
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/* Rule Set ----------------------------------------------------------------- */
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rule SysInternals_Tool_Anomaly {
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meta:
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description = "SysInternals Tool Anomaly - does not contain Mark Russinovich as author"
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license = "https://creativecommons.org/licenses/by-nc/4.0/"
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author = "Florian Roth"
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reference = "Internal Research"
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date = "2016-12-06"
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strings:
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$s1 = "Software\\Sysinternals\\%s" fullword ascii
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$n1 = "Mark Russinovich" wide
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$nfp1 = "<<<Obsolete>>>" fullword wide
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condition:
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( uint16(0) == 0x5a4d and filesize < 1000KB and $s1 and not $n1 and not 1 of ($nfp*) )
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}
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