Analysis by: kathleenno
ALIASES:

Spyware.LympexPcSpy (Symantec)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  TECHNICAL DETAILS

File Size: 63,488 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 17 Oct 2010

Installation

This spyware drops the following non-malicious file:

  • %System%\Xpocx.ocx

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)

Other System Modifications

This spyware adds the following registry keys as part of its installation routine:

HKEY_CLASSES_ROOT\xpOcx.XPButton

HKEY_CLASSES_ROOT\CLSID\{F36C603A-5FC0-4AF8-A1FD-DB40DB9E2F9B}

HKEY_CLASSES_ROOT\Interface\{4AD58ECF-DF94-41AF-832E-DDB44D602754}

HKEY_CLASSES_ROOT\Interface\{B1DF96EB-D536-403F-8F54-039A8D0A50CB}

HKEY_CLASSES_ROOT\TypeLib\{1292FDC1-6231-407E-A10D-F419BBFDA432}

NOTES:

It captures screenshots from the affected system and saves them in intervals specified by the user. The location where the screenshots is saved can also be configured.

  SOLUTION

Minimum Scan Engine: 8.900
FIRST VSAPI PATTERN FILE: 7.549.00
FIRST VSAPI PATTERN DATE: 17 Oct 2010

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

Restart in Safe Mode

[ Learn More ]

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. 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.

  • In HKEY_CLASSES_ROOT
    • xpOcx.XPButton
  • In HKEY_CLASSES_ROOT\CLSID
    • {F36C603A-5FC0-4AF8-A1FD-DB40DB9E2F9B}
  • In HKEY_CLASSES_ROOT\Interface
    • {4AD58ECF-DF94-41AF-832E-DDB44D602754}
  • In HKEY_CLASSES_ROOT\Interface
    • {B1DF96EB-D536-403F-8F54-039A8D0A50CB}
  • In HKEY_CLASSES_ROOT\TypeLib
    • {1292FDC1-6231-407E-A10D-F419BBFDA432}

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. %System%\Xpocx.ocx

Step 5

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