51 lines
2 KiB
Text
51 lines
2 KiB
Text
// Keydnap packer yara rule
|
|
// https://github.com/eset/malware-ioc/
|
|
//
|
|
// These yara rules are provided to the community under the two-clause BSD
|
|
// license as follows:
|
|
//
|
|
// Copyright (c) 2016, ESET
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this
|
|
// list of conditions and the following disclaimer.
|
|
//
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
|
|
|
|
rule keydnap_backdoor_packer
|
|
{
|
|
meta:
|
|
description = "OSX/Keydnap packed backdoor"
|
|
author = "Marc-Etienne M. Leveille"
|
|
date = "2016-07-06"
|
|
reference = "http://www.welivesecurity.com/2016/07/06/new-osxkeydnap-malware-is-hungry-for-credentials"
|
|
version = "1"
|
|
|
|
strings:
|
|
$upx_string = "This file is packed with the UPX"
|
|
$packer_magic = "ASS7"
|
|
$upx_magic = "UPX!"
|
|
|
|
condition:
|
|
$upx_string and $packer_magic and not $upx_magic
|
|
}
|
|
|
|
|