Full description

Virus:	EXP/JS.Blackhole.K
Date discovered:	02/10/2012
Type:	Exploit
In the wild:	No
Reported Infections:	Low
Distribution Potential:	Low
Damage Potential:	Low
VDF version:	7.11.44.246 - Tuesday, October 2, 2012
IVDF version:	7.11.44.246 - Tuesday, October 2, 2012

General Method of propagation:
   • No own spreading routine

Aliases:
   • Mcafee: trojan
   • Kaspersky: Trojan-Downloader.JS.Expack.aex
   • Grisoft: Script/Exploit.Kit

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
   • Windows Vista
   • Windows Server 2008
   • Windows 7

Side effects:
   • Can be used to execute malicious code
   • Drive-by download

Files It tries to download a file:

– The location is the following:
• http://146.**********.**********.244/font.php
It is saved on the local hard drive under: %temp%/wlsidten.dll Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Winlock.HM

File details Programming language:
• JavaScript

Encryption:
Encrypted - The virus code inside the file is encrypted.

Description inserted by Wensin Lee on 4 Ekim 2012 Perşembe
Description updated by Wensin Lee on 8 Ekim 2012 Pazartesi

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