Threat Descriptions

Trojan-Spy:W32/Banker.CPV

Classification

Category :

Malware

Type :

Trojan-Spy

Platform :

W32

Aliases :

Trojan-Spy.Win32.Banker.cpv, Banker.cpv

Summary

This is a trojan that steals bank-related credentials. It also has keylogging capabilities.

Removal

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

This malware drops the following files:

  • %windir%\system32\helper.sys - normal XML file that contains online transaction information
  • %windir%\system32\coman.dll - Trojan-Spy.Win32.Banker.cpv
  • %windir%\system32\cookie.dat - log file
  • %windir%\system32\ps.dat - log file
  • %windir%\system32\alog.txt - log file
  • %windir%\system32\commands.xml - normal xml file from the its download link

It also installs its component as a Browser Helper Object so that every time that Internet Explorer is running, this malware also runs.

  • HKLM\Software\Helper
  • HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer \Browser Helper Objects\{327C3AF0-4EF6-4f8a-9A8D-685A4815D9F8}
  • HKLM\Software\Classes\CLSID\{327C3AF0-4EF6-4f8a-9A8D-685A4815D9F8}
  • HKLM\Software\Classes\CLSID\{327C3AF0-4EF6-4f8a-9A8D-685A4815D9F8}\InprocServer32
  • HKLM\Software\Classes\CLSID\{327C3AF0-4EF6-4f8a-9A8D-685A4815D9F8}\ProgID
  • HKLM\Software\Classes\CLSID\{327C3AF0-4EF6-4f8a-9A8D-685A4815D9F8}\TypeLib

This malware steals bank-related informations as well as passwords. It also has keylogging capability. It checks the sites that the infected user is visiting and compares it to the following bank-related strings:

  • akbank.com.tr
  • bankofamerica
  • commbank.com.au/netbank/bankmain
  • erheit.sparkasse-hannover.de
  • ingportal.sparkasse-minden-luebbecke.de
  • gad.de
  • dserver.pipex.com/nationwide/
  • netteller
  • rbsdigital.com
  • erage.bankingonline.de
  • www.yapikredi.com.tr

It can also steal information such as:

  • Outlook Express Password
  • Deleted Outlook Express Account password
  • Outlook password
  • Deleted Outlook Account password
  • MSN Explorer signup password
  • IE auto-complete passwords
  • IE auto-complete field

Here is a sample log file:

It sends a POST command to the following site to send all the stolen information from the infected machine:

  • http://raspart2007.info/[removed].php
  • http://raspart2007.info/[removed].php