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ADW_OPENCANDY.GE

April 19, 2016
 Analysis by: Jeanne Jocson
 ALIASES:

Win32/OpenCandy (ESET), PUA.OpenCandy (Symantec)

 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This potentially unwanted application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.

It connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size:

3,469,871 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

18 Jun 2013

Payload:

Connects to URLs/IPs

Arrival Details

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

It may be manually installed by a user.

Installation

This potentially unwanted application drops the following files:

  • %Program Files%\ImgBurn\ImgBurn.exe
  • %Program Files%\ImgBurn\ImgBurnPreview.exe
  • %Program Files%\ImgBurn\ReadMe.txt
  • %Program Files%\ImgBurn\uninstall.exe
  • %Start Menu%\Programs\ImgBurn\ImgBurn Read Me.lnk
  • %Start Menu%\Programs\ImgBurn\ImgBurn.lnk
  • %Start Menu%\Programs\ImgBurn\Uninstall.lnk
  • %Program Files%\ImgBurn\Sounds\Error.wav
  • %Program Files%\ImgBurn\Sounds\Success.wav
  • %User Temp%\nsi116.tmp\OCSetupHlp.dll

(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %Start Menu% is the Start Menu folder, where it usually is C:\Documents and Settings\{user name}\Start Menu on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Other System Modifications

This potentially unwanted application adds the following registry keys:

HKEY_CURRENT_USER\Software\ImgBurn

HKEY_LOCAL_MACHINE\SOFTWARE\ImgBurn

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ImgBurn.AssocFile.{extension}

where {extension} is the following:

  • ape
  • bin
  • ccd
  • cdi
  • cdr
  • cue
  • di
  • dvd
  • flac
  • gcm
  • gi
  • ibb
  • ibq
  • img
  • iso
  • lst
  • mds
  • nrg
  • pdi
  • tak
  • udi
  • wv

It adds the following registry entries:

HKEY_CURRENT_USER\Software\ImgBurn
EVENTS_CheckForProgramUpdate = "2"

HKEY_CURRENT_USER\Software\ImgBurn
InstallDirectory = "%Program Files%\ImgBurn"

HKEY_CURRENT_USER\Software\ImgBurn
VersionMajor = "2"

HKEY_CURRENT_USER\Software\ImgBurn
VersionMinor = "5"

HKEY_CURRENT_USER\Software\ImgBurn
VersionRevision = "8"

HKEY_CURRENT_USER\Software\ImgBurn
VersionBuild = "0"

HKEY_CURRENT_USER\Software\ImgBurn
INSTALLER_StartMenuShortcuts = "1"

HKEY_CURRENT_USER\Software\ImgBurn
INSTALLER_DesktopIcon = "1"

HKEY_CURRENT_USER\Software\ImgBurn
INSTALLER_QuickLaunchIcon = "1"

HKEY_CURRENT_USER\Software\ImgBurn
INSTALLER_InstallAllUsers = "1"

HKEY_CURRENT_USER\Software\ImgBurn
INSTALLER_EnableSPTIAccessAllUsers = "0"

HKEY_CURRENT_USER\Software\ImgBurn
INSTALLER_EnableSPTIAccessRemoteSessions = "0"

HKEY_LOCAL_MACHINE\SOFTWARE\ImgBurn
EVENTS_CheckForProgramUpdate = "2"

HKEY_LOCAL_MACHINE\SOFTWARE\ImgBurn\
Capabilities
ApplicationDescription = "A lightweight burning application that everyone should have in their toolkit!"

HKEY_LOCAL_MACHINE\SOFTWARE\ImgBurn\
Capabilities
ApplicationName = "ImgBurn"

HKEY_LOCAL_MACHINE\SOFTWARE\ImgBurn\
Capabilities\FileAssociations
{extension} = "ImgBurn.AssocFile.{extension}"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ImgBurn.AssocFile.{extension}
(Default) = "Disc Image File"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ImgBurn.AssocFile.{extension}
FriendlyTypeName = "Disc Image File"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ImgBurn.AssocFile.{extension}\DefaultIcon
(Default) = "%Program Files%\ImgBurn\ImgBurn.exe,1"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ImgBurn.AssocFile.{extension}\shell\open
(Default) = "Burn using ImgBurn"

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
ImgBurn.AssocFile.{extension}\shell\open\
command
(Default) = ""%Program Files%\ImgBurn\ImgBurn.exe" /MODE WRITE /SOURCE "%1""

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
DisplayIcon = "%Program Files%\ImgBurn\ImgBurn.exe"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
DisplayName = "ImgBurn"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
DisplayName = "ImgBurn"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
DisplayVersion = "2.5.8.0"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
HelpLink = "http://forum.imgburn.com/"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
InstallDate = "{date installed}"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
InstallLocation = "%Program Files%\ImgBurn"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
NoRepair = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
Publisher = "LIGHTNING UK!"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
StartMenuDirectory = "ImgBurn"

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

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
URLInfoAbout = "http://www.imgburn.com/"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
ImgBurn
URLUpdateInfo = "http://www.imgburn.com/"

HKEY_LOCAL_MACHINE\SOFTWARE\RegisteredApplications
ImgBurn = "SOFTWARE\ImgBurn\Capabilities"

Other Details

This potentially unwanted application connects to the following website to send and receive information:

  • http://api.{BLOCKED}ndy.com{data}

NOTES:

During the installation, this adware offers a bundled AVG and Opera Browser product to the user with pre-populated check box:

The installer installs the ImgBurn application:

  SOLUTION

Minimum Scan Engine:

9.800

SSAPI PATTERN File:

1.458.00

SSAPI PATTERN Date:

28 Nov 2013

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

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_CURRENT_USER\Software
    • ImgBurn
  • In HKEY_LOCAL_MACHINE\SOFTWARE
    • ImgBurn
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes
    • ImgBurn.AssocFile.{extension}

Step 4

Search and delete this file

[ Learn More ]
There may be some 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.
  • %Program Files%\ImgBurn\ImgBurn.exe
  • %Program Files%\ImgBurn\ImgBurnPreview.exe
  • %Program Files%\ImgBurn\ReadMe.txt
  • %Program Files%\ImgBurn\uninstall.exe
  • %Start Menu%\Programs\ImgBurn\ImgBurn Read Me.lnk
  • %Start Menu%\Programs\ImgBurn\ImgBurn.lnk
  • %Start Menu%\Programs\ImgBurn\Uninstall.lnk
  • %Program Files%\ImgBurn\Sounds\Error.wav
  • %Program Files%\ImgBurn\Sounds\Success.wav
  • %User Temp%\nsi116.tmp\OCSetupHlp.dll

Step 5

Scan your computer with your Trend Micro product to delete files detected as ADW_OPENCANDY.GE. 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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