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TSPY_KYMBER.SMDV

July 05, 2013
 Analysis by: Sabrina Lei Sioting
 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

  OVERVIEW

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

It deletes the initially executed copy of itself.

  TECHNICAL DETAILS

File Size:

58,228 bytes

File Compression:

UPX

Memory Resident:

No

Initial Samples Received Date:

08 Jun 2011

Arrival Details

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

Installation

This spyware drops the following copies of itself into the affected system:

  • %User Temp%\kb00712295.tmt
  • %Program Files%\Common Files\System\kb00712295.tmt

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)

Autostart Technique

This spyware saves the original file as the following:

  • %System%\ddraw.dll.{random 4 letter}
  • %System%\dllcache\ddraw.dll.{random 4 letter}

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

Other System Modifications

This spyware modifies the following file(s):

  • %System%\ddraw.dll
  • %System%\dllcache\ddraw.dll

(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)

Other Details

This spyware deletes the initially executed copy of itself

  SOLUTION

Minimum Scan Engine:

9.200

VSAPI OPR PATTERN File:

8.209.00

VSAPI OPR PATTERN Date:

08 Jun 2011

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

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%\ddraw.dll
%System%\dllcache\ddraw.dll

Step 3

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

NOTES:

To Restore Files to its Original Location:

Open the following folders and rename the files as follows:

If operating system major version is 5 (XP, 2000, 2003):

From: %System%\ddraw.dll.{random 4 letter}

To: %System%\ddraw.dll

From: %System%\dllcache\ddraw.dll.{random 4 letter}

To: %System%\dllcache\ddraw.dll

If operating system major version is 6 (Vista, 2008, 7)

From: %System%\ddraw.dll.{random 4 letter}

To: %System%\ddraw.dll


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