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


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

Automatic action

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.

Suspect a file is incorrectly detected (a False Positive)?

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 detection database 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.

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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:

  • bankofamerica
  • netteller

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: