Analysis by: Rhena Inocencio
ALIASES:

Trojan.WinREG.LowZones.H (Bitdefender), Malware.JS.Generic (Sunbelt)

 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 as a component bundled with malware/grayware packages. It may be hosted on a website and run when a user accesses the said website.

It redirects browsers to certain sites.

  TECHNICAL DETAILS

File Size: Varies
File Type: Script
Initial Samples Received Date: 22 Dec 2011

Arrival Details

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

It may be hosted on a website and run when a user accesses the said website.

Other Details

This Trojan redirects browsers to the following sites:

  • http://{BLOCKED}t.{BLOCKED}ash.com/js/a376ab73/a178af72.js
  • http://{BLOCKED}t.{BLOCKED}ash.com/js/a372a171/a178ac7b.js
  • http://{BLOCKED}e.com/ist/scripts/prompt.php?retry=2&loadfirst=0&delayload=20&account_id=159080&recurrence=always&adid=a1128234476&event_type=onload
  • http://{BLOCKED}e.com/ist/scripts/prompt.php?retry=2&loadfirst=0&delayload=10&account_id=158634&recurrence=always&adid=a1128233772&event_type=onload&signature=adult
  • http://www.{BLOCKED}b.com/ist/scripts/ysb_prompt.php?retry=2&loadfirst=0&delayload=5&software_id=10&account_id=1004115&recurrence=always&adid=a1128233582&event_type=onload&user_level=3