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TROJ_JORIK.ECC

February 20, 2013
 Modified by: Nikko Tamana
 ALIASES:

VirTool:Win32/DelfInject.gen!X (Microsoft); Trojan.Win32.Jorik.Vobfus.gldy (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse Generic31.AJTV (AVG)

 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: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

412,672 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

14 Feb 2013

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Download Routine

This Trojan accesses the following websites to download files:

  • http://{BLOCKED}oseu.dominiotemporario.com/fugi/Instal.teaz

It saves the files it downloads using the following names:

  • All Users' %User Startup%\Instal.teaz

(Note: %User Startup% is the current user's Startup folder, which is usually C:\Windows\Profiles\{user name}\Start Menu\Programs\Startup on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu\Programs\Startup on Windows NT, and C:\Documents and Settings\{User name}\Start Menu\Programs\Startup.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}oseu.{BLOCKED}otemporario.com/fugi/Instal.xml

However, as of this writing, the said sites are inaccessible.