Analysis by: rolandde

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This spyware searches the local drive of an infected system for MS Word and MS Excel documents. The collected documents are then archived and saved. It then uploads the created archive to the website, sendspace.com.

To get a one-glance comprehensive view of the behavior of this Spyware, refer to the Threat Diagram shown below.

Upon sucessfully uploading the archive, it sends the generated download link and archive password to a C&C server. This routine exposes data, which may be used for malicious purposes to unknown users.

This spyware may be downloaded from remote sites by other malware.

  TECHNICAL DETAILS

File Size: 544,768 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 01 Feb 2012

Arrival Details

This spyware may be downloaded from remote site(s) by the following malware:

  • TROJ_DOFOIL.GE

Installation

This spyware drops the following files:

  • %User Temp%\{random}.zip

(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.)

NOTES:

It searches the local drive of an affected system for MS Word and MS Excel documents. The collected documents are then archived and saved using a random-generated password and archive name:

  • %User Temp%\{random}.zip

It then uploads the created archive to the website sendspace.com.

Upon sucessfully uploading the archive, it then sends the generated download link and archive password to the C&C server http://www.{BLOCKED}483825.ru/send/log.php.

  SOLUTION

Minimum Scan Engine: 9.200
VSAPI OPR PATTERN File: 8.753.00
VSAPI OPR PATTERN Date: 04 Feb 2012

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

Remove the malware/grayware file dropped/downloaded by TSPY_SPCESEND.A

Step 3

Search and delete this file

[ Learn More ]
There may be some 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.
  • %User Temp%\{random}.zip

Step 4

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