Analysis by: Michael Jay Villanueva
ALIASES:

PUP.Optional.RebateInformer (Malwarebytes); Tool.InstallToolbar.220 (DrWeb);

 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This potentially unwanted application may arrive bundled with malware packages as a malware component. It may be manually installed by a user.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

Tamaño del archivo 1,340,376 bytes
Tipo de archivo DLL
Residente en memoria No
Fecha de recepción de las muestras iniciales 06 Oct 2015

Arrival Details

This potentially unwanted application may arrive bundled with malware packages as a malware component.

It may be manually installed by a user.

Other System Modifications

This potentially unwanted application adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
RebateI.CoRebateJS
(Default) = Rebate Informer

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
RebateI.CoRebateJS\Clsid
(Default) = {GUID 1}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
RebateI.Rebate Informer BHO\Clsid
(Default) = {GUID 2}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
RebateI.RebateInformImageGen\Clsid
(Default) = {GUID 3}

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PROTOCOLS\Handler\rebinfo
(Default) = rebinfo

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PROTOCOLS\Handler\rebinfo
CLSID = {GUID 3}

HKEY_CLASSES_ROOT\RebateI.CoRebateJS
(Default) = Rebate Informer

HKEY_CLASSES_ROOT\RebateI.CoRebateJS\Clsid
(Default) = {GUID 1}

HKEY_CLASSES_ROOT\RebateI.Rebate Informer BHO\Clsid
(Default) = {GUID 2}

HKEY_CLASSES_ROOT\RebateI.RebateInformImageGen\Clsid
(Default) = {GUID 3}

HKEY_CLASSES_ROOT\PROTOCOLS\Handler\
rebinfo
(Default) = rebinfo

HKEY_CLASSES_ROOT\PROTOCOLS\Handler\
rebinfo
CLSID = {GUID 3}

Other Details

This potentially unwanted application requires its main component to successfully perform its intended routine.

It does the following:

  • It can monitor the visited web pages of the user.
  • It can affect system performance, security, and privacy.

  SOLUTION

Motor de exploración mínimo 9.800
Primer archivo de patrones de VSAPI 1.668.02
Primera fecha de publicación de patrones de VSAPI 15 Oct 2015
Versión de patrones OPR de VSAPI 1.669.00
Fecha de publicación de patrones OPR de VSAPI 16 Oct 2015

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 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\Classes\RebateI.CoRebateJS
    • (Default) = Rebate Informer
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\RebateI.CoRebateJS\Clsid
    • (Default) = {GUID 1}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\RebateI.Rebate Informer BHO\Clsid
    • (Default) = {GUID 2}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\RebateI.RebateInformImageGen\Clsid
    • (Default) = {GUID 3}
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\PROTOCOLS\Handler\rebinfo
    • (Default) = rebinfo
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\PROTOCOLS\Handler\rebinfo
    • CLSID = {GUID 3}
  • In HKEY_CLASSES_ROOT\RebateI.CoRebateJS
    • (Default) = Rebate Informer
  • In HKEY_CLASSES_ROOT\RebateI.CoRebateJS\Clsid
    • (Default) = {GUID 1}
  • In HKEY_CLASSES_ROOT\RebateI.Rebate Informer BHO\Clsid
    • (Default) = {GUID 2}
  • In HKEY_CLASSES_ROOT\RebateI.RebateInformImageGen\Clsid
    • (Default) = {GUID 3}
  • In HKEY_CLASSES_ROOT\PROTOCOLS\Handler\rebinfo
    • (Default) = rebinfo
  • In HKEY_CLASSES_ROOT\PROTOCOLS\Handler\rebinfo
    • CLSID = {GUID 3}

Step 4

Scan your computer with your Trend Micro product to delete files detected as PUA_REBATEINFORMER.GA. 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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