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Threat Encyclopedia

RTKT_ZACESS.SM1

ANALYSIS BY

Kathleen Notario


ALIASES:

Trojan.Win32.Olmarik.agn (Sunbelt)

PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type:Trojan

  • Destructiveness:No

  • Encrypted: Yes

  • In the wild: Yes

OVERVIEW

TECHNICAL DETAILS

SOLUTION

Minimum Scan Engine:

9.200

VSAPI OPR PATTERN File:

8.425.00

VSAPI OPR PATTERN Date:

14 Sep 2011

Step 1

AUTOMATIC REMOVAL INSTRUCTIONS

To automatically remove this malware from your system, use Trend Micro's special http://www.trendmicro.com/ftp/products/pattern/spyware/fixtool/FIX_RTKT_ZACESS.SM1.zip

>fixtool. Download, extract, and run the said fixtool in the same folder where your latest Trend Micro pattern file is located. For more details, refer to the fixtool's incorporated text file.

MANUAL REMOVAL INSTRUCTIONS

Step 2

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 3

Remove the malware/grayware file that dropped/downloaded RTKT_ZACESS.SM1

     TROJ_OLMARIK.EFF

Step 4

Remove malware files dropped/downloaded by RTKT_ZACESS.SM1

    TROJ_DROPPR.EFF

Step 5

Identify and delete files detected as RTKT_ZACESS.SM1 using either the Startup Disk or Recovery Console

[ Learn More ]

Step 6

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\SYSTEM\CurrentControlSet\Services\
    • {malware filename}
  • In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\
    • *PNP0296

Step 7

Restore this modified 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_CLASSES_ROOT\CLSID\{4FA18276-912A-11D1-AD9B-00C04FD8FDFF}\InprocServer32
    • From: @ = %WINDOWS%\WinSxS\x86_Microsoft.Windows.Shell.HWEventDetector_6595b64144ccf1df_5.2.2.3_x-ww_5390e909\shsvcs.dll
      To: %System%\wbem\wbemcore.dll.)
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{4FA18276-912A-11D1-AD9B-00C04FD8FDFF}\InprocServer32
    • From: @ = %WINDOWS%\WinSxS\x86_Microsoft.Windows.Shell.HWEventDetector_6595b64144ccf1df_5.2.2.3_x-ww_5390e909\shsvcs.dll
      To: %System%\wbem\wbemcore.dll.)

Step 8

Scan your computer with your Trend Micro product to delete files detected as RTKT_ZACESS.SM1. 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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