Analysis by: Rika Joi Gregorio
ALIASES:

Backdoor:Win32/Thoper.E(Microsoft), Win32/Korplug.J trojan((Eset)

 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:

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This backdoor arrives as a component bundled with malware/grayware packages.

  TECHNICAL DETAILS

File Size: 225,280 bytes
File Type: DLL
Memory Resident: Yes
Initial Samples Received Date: 10 Apr 2013

Arrival Details

This backdoor arrives as a component bundled with malware/grayware packages.

Other System Modifications

This backdoor adds the following registry keys:

HKEY_CLASSES_ROOT\SS

It adds the following registry entries:

HKEY_CLASSES_ROOT\SS
CLSID = "{random value}"

Other Details

This backdoor connects to the following possibly malicious URL:

  • http://{BLOCKED}t.{BLOCKED}k-sec.net