/*
    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.
*/


private rule is__elf
{
    meta:
		author = "@mmorenog,@yararules"
		
    strings:
        $header = { 7F 45 4C 46 }

    condition:
        $header at 0
}

rule ELF_Linux_Torte

{
    meta:
		author = "@mmorenog,@yararules"
		description = "Detects ELF Linux/Torte infection"
		ref = "http://blog.malwaremustdie.org/2016/01/mmd-0050-2016-incident-report-elf.html"
		hash1 = "1faf27f6b8e8a9cadb611f668a01cf73"
		hash2 = "cb0477445fef9c5f1a5b6689bbfb941e"

    strings:
        $s0 = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6)"
        $s1 = "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.7.6)"
        $s2 = "?sessd="
        $s3 = "&sessc="
        $s4 = "&sessk="
        $s5 = "3a08fe7b8c4da6ed09f21c3ef97efce2"
        $s6 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
        $s7 = "_ZN11CThreadPool10getBatchesERSt6vectorISt4pairISsiESaIS2_EE"
        $s8 = "_ZNSs4_Rep10_M_destroyERKSaIcE@@GLIBCXX_3.4"
        $s9 = "_ZNSt6vectorImSaImEE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPmS1_EERKm"
        $s10 = "_ZNSt6vectorISt4pairISsiESaIS1_EE13_M_insert_auxEN9__gnu_cxx17__normal_iteratorIPS1_S3_EERKS1_"
        $s11 = "_ZSt20__throw_out_of_rangePKc@@GLIBCXX_3.4"
        
        condition:
        is__elf and all of ($s*)
}


rule ELF_Linux_Torte_domains {
	meta:
		author = "@mmorenog,@yararules"
		description = "Detects ELF Linux/Torte infection"
		ref1 = "http://blog.malwaremustdie.org/2016/01/mmd-0050-2016-incident-report-elf.html"
	strings:
		$1 = "pages.touchpadz.com" ascii wide nocase
		$2 = "bat.touchpadz.com" ascii wide nocase
		$3 = "stat.touchpadz.com" ascii wide nocase
		$4 = "sk2.touchpadz.com" ascii wide nocase

	condition:
		any of them
}