PLATFORM:

Windows 98, ME, NT, 2000, XP, Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type:

  • Destructiveness:

  • Encrypted:

  • In the wild: Yes


  TECHNICAL DETAILS

Tamaño del archivo 307213 bytes
Fecha de recepción de las muestras iniciales 18 Mar 2010

Other System Modifications


This Trojan adds the following registry keys:



Other Details


This Trojan adds the following lines or registry entries as part of its routine:


      SOLUTION


    Step 1


    Terminate the malware/grayware/spyware process:

    [ Learn More ]
    Notes=
  • For Windows 98 and ME users, Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  • If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  • If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.


  • 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. Before you could do this, you must restart in Safe Mode. For instructions on how to do this, you may refer to this page If the preceding step requires you to restart in safe mode, you may proceed to edit the system registry.

    • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Explorer\Browser Helper Objects\
      • AFD4AD01-58C1-47DB-A404-FBE00A6C5486


    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.

    • HKEY_CLASSES_ROOT\AppID\U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-
      • (Default)=Browser Helper Object
    • HKEY_CLASSES_ROOT\AppID\main.DLL
      • AppID=U+)+A0E1054B-01EE-4D57-A059-4D99F339709FU+)-
    • HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Explorer\Browser Helper Objects\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}
      • (Default)=
      • NoExplorer=1
    • HKEY_CLASSES_ROOT\main.BHO.1
      • (Default)=Browser Helper Object
    • HKEY_CLASSES_ROOT\main.BHO.1\CLSID
      • (Default)={AFD4AD01-58C1-47DB-A404-FBE00A6C5486}
    • HKEY_CLASSES_ROOT\main.BHO\CLSID
      • (Default)={AFD4AD01-58C1-47DB-A404-FBE00A6C5486}
    • HKEY_CLASSES_ROOT\main.BHO\CurVer
      • (Default)=main.BHO.1
    • HKEY_CLASSES_ROOT\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}
      • (Default)=Browser Helper Object
      • AppID=??????(
    • HKEY_CLASSES_ROOT\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\ProgID
      • (Default)=main.BHO.1
    • HKEY_CLASSES_ROOT\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\InprocServer32
      • (Default)={malware path and filename}
      • ThreadingModel=Apartment
    • HKEY_CLASSES_ROOT\CLSID\{AFD4AD01-58C1-47DB-A404-FBE00A6C5486}\TypeLib
      • (Default)={8E3C68CD-F500-4A2A-8CB9-132BB38C3573}
    • HKEY_CLASSES_ROOT\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0
      • (Default)=mainLib
    • HKEY_CLASSES_ROOT\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\FLAGS
      • (Default)=0
    • HKEY_CLASSES_ROOT\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\win32
      • (Default)={malware path and filename}
    • HKEY_CLASSES_ROOT\TypeLib\{8E3C68CD-F500-4A2A-8CB9-132BB38C3573}\1.0\HELPDIR
      • (Default)=%Current%\
    • HKEY_CLASSES_ROOT\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}
      • (Default)=IBHO
    • HKEY_CLASSES_ROOT\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid
      • (Default)={00020424-0000-0000-C000-000000000046}
    • HKEY_CLASSES_ROOT\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\ProxyStubClsid32
      • (Default)={00020424-0000-0000-C000-000000000046}
    • HKEY_CLASSES_ROOT\Interface\{986A8AC1-AB4D-4F41-9068-4B01C0197867}\TypeLib
      • (Default)={8E3C68CD-F500-4A2A-8CB9-132BB38C3573}
      • Version=1.0


    Step 4


    Scan your computer with your Trend Micro product to delete files detected as
    TROJ_BHO.SMIA


    *Note: 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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