Sneed-Reactivity/yara-mikesxrs/kevthehermit/jRat.yar

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rule jRat
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/jRat"
maltype = "Remote Access Trojan"
filetype = "Java"
strings:
$meta = "META-INF"
$key = "key.dat"
$conf = "config.dat"
$jra1 = "enc.dat"
$jra2 = "a.class"
$jra3 = "b.class"
$jra4 = "c.class"
$reClass1 = /[a-z]\.class/
$reClass2 = /[a-z][a-f]\.class/
condition:
($meta and $key and $conf and #reClass1 > 10 and #reClass2 > 10) or ($meta and $key and all of ($jra*))
}