Backdoor.Win64.COBEACON.ZCLG

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Führt Befehle eines externen, böswilligen Benutzers aus, wodurch das betroffene System gefährdet wird. Verbindet sich mit einer Website, um Daten zu versenden und zu empfangen. However, as of this writing, the said sites are inaccessible.

Übertragungsdetails

It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Backdoor-Routine

Führt die folgenden Befehle eines externen, böswilligen Benutzers aus:

• Connect and disconnect to a named pipe
• Escalate privileges
• Execute arbitrary commands
• Impersonate tokens
• Inject code into processes
• Manage directories (Create, Remove, Set Directory)
• Manage files (List, Create, Delete, Modify, Rename, Copy)
• Manage processes (List, Create, Terminate)
• List Drive Information
• Use/purge Kerberos tickets

Verbindet sich mit den folgenden Websites, um Daten zu versenden und zu empfangen.

• http://{BLOCKED}g-f12b.azuer.workers.dev/feedback/js/help/prod/service/lazy.min.js
• http://{BLOCKED}g-f12b.azuer.workers.dev/we/s/h36B915845CCD42D1_App_Scripts/jquery.signalR2.1.1.min.js

However, as of this writing, the said sites are inaccessible.

Datendiebstahl

Folgende Daten werden gesammelt:

• Username
• Computer name
• Operating System Version
• Executable used to load the sample

Andere Details

Für ihre ordnungsgemäße Ausführung sind die folgenden zusätzlichen Komponenten erforderlich:

• %windows%\assembly\msco.conf → Detected as Backdoor.Win64.COBEACON.ZCLG.enc

Es macht Folgendes:

• This sample needs to be located in the %windows%\assembly directory and have a file name of 'mscorsvc.dll' to execute properly.
• It is loaded by normal file Mscorsvw.exe which is acomponent of Windows, and is otherwise known as the .NET Framework Optimization Service.
• It requires to be executed as a service.