ALIASES:

Trojan:Win32/Gatak.DR (Microsoft)

 PLATFORM:

Windows

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • 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: 419,328 bytes
File Type: EXE
Initial Samples Received Date: 16 Dec 2014

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 files:

  • %User Temp%\~{number}.tmp - deleted afterwards

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Other Details

This spyware connects to the following possibly malicious URL:

  • http://{BLOCKED}7.{BLOCKED}6.232.49/report_{OS architecture,OS version,computer name, User name, location and file name of the malware, list of running processes}
  • http://www.{BLOCKED}esup.net/?di=814183680408
  • http://{BLOCKED}npost.org/uploads/fdaebb9b94050e4c16972bb31c40fba0.png

It deletes the initially executed copy of itself

NOTES:

It executes the following command:

  • CMD /C SYSTEMINFO && SYSTEMINFO && SYSTEMINFO && SYSTEMINFO && SYSTEMINFO && DEL {original malware copy}