Analysis by: Rhena Inocencio
ALIASES:

a variant of Win32/Etchfro.D trojan (ESET), Troj/Tubs-A (Sophos)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan may arrive bundled with malware packages as a malware component. It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size: 91,576 bytes
File Type: DLL
Initial Samples Received Date: 19 Jun 2014

Arrival Details

This Trojan may arrive bundled with malware packages as a malware component.

It 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 Trojan drops the following files:

  • {All Users Profile}\Application Data\{random folder name}\{random filename}
  • %ProgramData%\{random folder name}\{random filename}
  • {Pictures Default Folder}\{random folder name}\{random filename}
  • {Music Default Folder}\{random folder name}\{random filename}
  • {Favorites Default Folder}\{random folder name}\{random filename}
  • {All Users Profile}\Application Data\Windows NT\wp.dat
  • {All Users Profile}\Application Data\Windows NT\config.dat
  • {All Users Profile}\Application Data\Windows NT\del.bat
  • %ProgramData%\Windows NT\wp.dat
  • %ProgramData%\Windows NT\config.dat
  • %ProgramData%\Windows NT\del.bat

(Note: %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This is usually C:\ProgramData in Windows Vista and 7, or C:\Program Files on Windows 2000, XP (32-bit), and Server 2003, or C:\Program Files (x86) on Windows XP (64-bit).)