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False Positives with SysInternals_Tool_Anomaly

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Florian Roth 2019-04-02 15:57:33 +02:00
parent 4511fcdc46
commit 4c9d93b316
1 changed files with 6 additions and 1 deletions
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7
yara/gen_sysinternals_anomaly.yar
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@ -12,14 +12,19 @@ rule SysInternals_Tool_Anomaly {
description = "SysInternals Tool Anomaly - does not contain Mark Russinovich as author"
license = "https://creativecommons.org/licenses/by-nc/4.0/"
author = "Florian Roth"
score = 50
reference = "Internal Research"
date = "2016-12-06"
strings:
$s1 = "Software\\Sysinternals\\%s" fullword ascii
$n1 = "Mark Russinovich" wide
$n1 = "Mark Russinovich" wide ascii
$nfp1 = "<<<Obsolete>>>" fullword wide
$nfp2 = "BGInfo - Wallpaper text configurator" wide
$nfp3 = "usage: movefile [source] [dest]" wide
$nfp4 = "LoadOrder information has been copied" wide
$nfp5 = "Cache working set cleared" wide
condition:
( uint16(0) == 0x5a4d and filesize < 1000KB and $s1 and not $n1 and not 1 of ($nfp*) )
}