Unverified Commit b7754af5 by mmorenog Committed by GitHub

Merge pull request #294 from Xyl2k/patch-2

Update MALW_AZORULT.yar
parents 861e380b d2c80cd9
/* /*
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. 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.
*/ */
rule Windows_Malware_Azorult : Azorult_V2 import "cuckoo"
rule Windows_Malware : Azorult_V2
{ {
meta: meta:
author = "Xylitol xylitol@temari.fr" author = "Xylitol xylitol@temari.fr"
date = "2017-09-30" date = "2017-09-30"
description = "Match first two bytes, strings, and parts of routines present in Azorult" description = "Match first two bytes, strings, and parts of routines present in Azorult"
reference = "http://www.kernelmode.info/forum/viewtopic.php?f=16&t=4819" reference = "http://www.kernelmode.info/forum/viewtopic.php?f=16&t=4819&p=30867"
// May only the challenge guide you // May only the challenge guide you
strings: strings:
$mz = {4D 5A} $mz = {4D 5A}
...@@ -19,5 +20,5 @@ rule Windows_Malware_Azorult : Azorult_V2 ...@@ -19,5 +20,5 @@ rule Windows_Malware_Azorult : Azorult_V2
$constant1 = {85 C0 74 40 85 D2 74 31 53 56 57 89 C6 89 D7 8B 4F FC 57} // Azorult grabs .txt and .dat files from Desktop $constant1 = {85 C0 74 40 85 D2 74 31 53 56 57 89 C6 89 D7 8B 4F FC 57} // Azorult grabs .txt and .dat files from Desktop
$constant2 = {68 ?? ?? ?? ?? FF 75 FC 68 ?? ?? ?? ?? 8D 45 F8 BA 03 00} // Portion of code from Azorult self-delete function $constant2 = {68 ?? ?? ?? ?? FF 75 FC 68 ?? ?? ?? ?? 8D 45 F8 BA 03 00} // Portion of code from Azorult self-delete function
condition: condition:
($mz at 0 and all of ($string*) and ($constant1 or $constant2)) ($mz at 0 and all of ($string*) and ($constant1 or $constant2) or cuckoo.sync.mutex(/Ad48qw4d6wq84d56as|Adkhvhhydhasdasashbc/))
} }
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