TROJ_KILLFILE.JD

May 09, 2014
 Analysis by: RonJay Kristoffer Caragay
 ALIASES:

TR/Poison.A.9(AntiVir)

 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.

  TECHNICAL DETAILS

File Size:

115,101 bytes

File Type:

DLL

Initial Samples Received Date:

07 May 2014

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.

Installation

This Trojan drops the following files:

  • %All Users Profile%\Application Data\Javame\Java\Jre\helper\Adobe Flash Updated { {random characters}}.lnk
  • %All Users Profile%\Application Data\F1ash Update Back\1sass.exe
  • %All Users Profile%\Application Data\F1ash Update Back\chrome_frame_helper.dll
  • %All Users Profile%\Application Data\Sun Orcal\Java\Jre\DATA\chrome_frame_helper.dll
  • %All Users Profile%\Application Data\Sun Orcal\Java\Jre\DATA\services.exe
  • %All Users Profile%\Application Data\uperror.log

(Note: %All Users Profile% is the All Users or Common profile folder, which is C:\Documents and Settings\All Users in Windows 2000, XP, and Server 2003, and C:\ProgramData in Windows Vista and 7.)

It creates the following folders:

  • %All Users Profile%\Application Data\F1ash Update Back
  • %All Users Profile%\Application Data\Sun Orcal
  • %All Users Profile%\Application Data\Sun Orcal\Java
  • %All Users Profile%\Application Data\Sun Orcal\Java\Jre
  • %All Users Profile%\Application Data\Sun Orcal\Java\Jre\DATA
  • %All Users Profile%\Application Data\Javame
  • %All Users Profile%\Application Data\Javame\Java
  • %All Users Profile%\Application Data\Javame\Java\Jre
  • %All Users Profile%\Application Data\Javame\Java\Jre\helper

(Note: %All Users Profile% is the All Users or Common profile folder, which is C:\Documents and Settings\All Users in Windows 2000, XP, and Server 2003, and C:\ProgramData in Windows Vista and 7.)

NOTES:
It continuously deletes the files and/or folders inside the malware path.