signature-base/yara/apt_poshspy.yar

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/*
Yara Rule Set
Author: Florian Roth
Date: 2017-07-15
Identifier: APT29 POSHSPY
Reference: https://www.fireeye.com/blog/threat-research/2017/03/dissecting_one_ofap.html
*/
/* Rule Set ----------------------------------------------------------------- */
rule POSHSPY_Malware {
meta:
description = "Detects"
license = "https://creativecommons.org/licenses/by-nc/4.0/"
author = "Florian Roth"
reference = "https://www.fireeye.com/blog/threat-research/2017/03/dissecting_one_ofap.html"
date = "2017-07-15"
strings:
$x1 = "function sWP($cN, $pN, $aK, $aI)" fullword ascii
$x2 = "$aeK = [byte[]] (0x69, 0x87, 0x0b, 0xf2" ascii
$x3 = "(('variant', 'excretions', 'accumulators', 'winslow', 'whistleable', 'len',"
$x4 = "$cPairKey = \"BwIAAACkAABSU0EyAAQAAAEAA"
$x5 = "$exeRes = exePldRoutine"
$x6 = "ZgB1AG4AYwB0AGkAbwBuACAAcAB1AHIAZgBDAHIA"
condition:
1 of them
}