1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
/*
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
}