TROJ_CLICKER.BNM


 ALIASES:

Trojan:Win32/Orsam!rts (Microsoft); Trojan.ADH (Symantec); ARC:CreateInstall, ARC:[aide_belote.chm]:CHM (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan.Generic.IS.612186 (FSecure)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

  TECHNICAL DETAILS

File Size:

939,540 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

23 Apr 2012

Arrival Details

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

Installation

This Trojan creates the following folders:

  • %User Temp%\gentee00
  • %Program Files%\concours belote démo
  • %Start Menu%\Programs\concours belote démo

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.)

Other System Modifications

This Trojan adds the following registry keys:

HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
concours belote démo

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
concours belote démo
UninstallString = "%Program Files%\concours belote démo\uninstall.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
concours belote démo
DisplayName = "concours belote démo"

Dropping Routine

This Trojan drops the following files:

  • %User Temp%\gentee00.tmp
  • %User Temp%\gentee00\gentee.dll
  • %User Temp%\gentee00\guig.dll
  • %User Temp%\gentee00\setup_temp.gea
  • %User Temp%\gentee00\Default.bmp
  • %Program Files%\concours belote démo\_ci_gentee
  • %Program Files%\concours belote démo\gestion_belote_demo.exe
  • %Program Files%\concours belote démo\aide_belote.chm
  • %Start Menu%\Programs\concours belote démo\Gestion concours belote démo.lnk
  • %Desktop%\Gestion concours belote démo.lnk
  • %Start Menu%\Programs\concours belote démo\Aide Belote.lnk
  • %Start Menu%\Programs\concours belote démo\Désinstallation.lnk
  • %Program Files%\concours belote démo\uninstall.exe

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %Start Menu% is the current user's Start Menu folder, which is usually C:\Windows\Profiles\{user name}\Start Menu on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu on Windows NT and C:\Windows\Start Menu or C:\Documents and Settings\{User name}\Start Menu on Windows 2000, XP, and Server 2003.. %Desktop% is the current user's desktop, which is usually C:\Windows\Profiles\{user name}\Desktop on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Desktop on Windows NT, and C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003.)

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.200

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Uninstall
    • concours belote démo

Step 3

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\concours belote démo
    • UninstallString = "%Program Files%\concours belote démo\uninstall.exe"
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\concours belote démo
    • DisplayName = "concours belote démo"

Step 4

Search and delete these files

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %User Temp%\gentee00.tmp
  • %User Temp%\gentee00\gentee.dll
  • %User Temp%\gentee00\guig.dll
  • %User Temp%\gentee00\setup_temp.gea
  • %User Temp%\gentee00\Default.bmp
  • %Program Files%\concours belote démo\_ci_gentee
  • %Program Files%\concours belote démo\gestion_belote_demo.exe
  • %Program Files%\concours belote démo\aide_belote.chm
  • %Start Menu%\Programs\concours belote démo\Gestion concours belote démo.lnk
  • %Desktop%\Gestion concours belote démo.lnk
  • %Start Menu%\Programs\concours belote démo\Aide Belote.lnk
  • %Start Menu%\Programs\concours belote démo\Désinstallation.lnk
  • %Program Files%\concours belote démo\uninstall.exe

Step 5

Search and delete these folders

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %User Temp%\gentee00
  • %Program Files%\concours belote démo
  • %Start Menu%\Programs\concours belote démo

Step 6

Scan your computer with your Trend Micro product to delete files detected as TROJ_CLICKER.BNM. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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