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TSPY_FRESMIT.A

April 30, 2016
 Analysis by: Francis Xavier Antazo
 ALIASES:

Win32/Dridex.AA trojan (ESET);

 PLATFORM:

Windows

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

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 connects to certain websites to send and receive information.

  TECHNICAL DETAILS

File Size:

229,376 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

16 Mar 2016

Payload:

Connects to URLs/IPs

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.

Information Theft

This spyware gathers the following data:

  • Computer Name
  • User Name
  • Date Installed
  • OS Version
  • Running Privilege
  • list of all installed applications (application name and version)

Other Details

This spyware connects to the following website to send and receive information:

  • {BLOCKED}.{BLOCKED}.239.28:4843
  • {BLOCKED}.{BLOCKED}.199.33:4843
  • {BLOCKED}.{BLOCKED}.155.148:1234

NOTES:
It gathers the info from the following filepath:

  • HKEY_LOCAL_MACHINE\SOFTWARE\TrendMicro\Vizor\ProductPath

It tries to load the following dll:

  • {Product path}\\VizorUniclientLibrary.dll

It gathers the information from the installed applications by quering the registry:

  • HKEY_LOCAL_MACHINESOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

  SOLUTION

Minimum Scan Engine:

9.800

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

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