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/*
This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as long as you use it under this license.
*/
/*
Description: Rar file with a .js inside
Author: iHeartMalware
Priority: 5
Scope: Against Attachment
Tags: http://phishme.com/rockloader-new-upatre-like-downloader-pushed-dridex-downloads-malwares/
Created in PhishMe Triage on April 7, 2016 3:41 PM
*/
rule rar_with_js
{
strings:
$h1 = "Rar!"
$s1 = ".js" nocase
condition:
$h1 at 0 and $s1
}
rule RockLoader{
meta:
name = "RockLoader"
description = "RockLoader Malware"
author = "@seanmw"
strings:
$hdr = {4d 5a 90 00}
$op1 = {39 45 f0 0f 8e b0 00 00 00}
$op2 = {32 03 77 73 70 72 69 6e 74 66 41 00 ce 02 53 65}
condition:
$hdr at 0 and all of ($op*) and filesize < 500KB
}