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JS_DLOADR.BPK

June 10, 2013
 ALIASES:

Mal/ExpJS-N (Sophos), JS/Exploit!JNLP (NAI)

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

This file contains a URL where it connects to possibly download other files.

  TECHNICAL DETAILS

File Size:

856 bytes

File Type:

XML

Memory Resident:

Yes

Initial Samples Received Date:

24 May 2013

Arrival Details

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

Other Details

This file contains a URL where it connects to possibly download other files. As of this writing, this file contains the following URLs:

  • http://{BLOCKED}hop.vizvaz.com/fine/believes_rights.php?ebjt=cdkjpy&xtwjq=kixjjgd
  • http://{BLOCKED}mr.vizvaz.com/fine/believes_rights.php?dhzqexj=wkseeuno&ligwnw=yrcrhdf
  • http://{BLOCKED}.{BLOCKED}.67.182/45f9e384c6506561b274372ccdeaf6e0/45f9e384c6506561b274372ccdeaf6e0/q.php?latny=fxw&jnvrnx=tfwzsv

NOTES:

It passes the following parameters:

Parameter name: val
Value: "Dyy3OjjSy.vikMoDt3wv8UvVUw%t0j.8oej?e-8"

Parameter name: prime
Value: "eveiNl8ADyiw3D3x3.b1hO6qOhvO6qO1hR.ebh_O6.O6.O60O6DO6qOh_O68O6tO6-R3b6.Rt%b-R_obi"

Parameter name: val
Value: "Dyy3Ojj_qy.V-k0lwv8UvVUw%t0j.8oej?e-8ev"

Parameter name: prime
Value: "eiNl8ADyiw3D3x8.b11O16O16O6oO6CRAebh_O6.O6.O60O6DO6qOh_O68O6tO6-Rlb6.R-VbeR-8bD"

Parameter name: val
Value: "Dyy3Ojj6hcw6h6wPBw6rhjL4.ce1rL%P4fP4P6?"

Parameter name: prime
Value: "hBL1Bh%%MeV.PefjL4.ce1rL%P4fP4P6?hBL1Bh%%MeV.PefjFw3D3xC.b11O16O16O6oO6CRleb68O16O1hO6AO6oO6DO6-O6-O6oO16Rqb6.RqSbiRASb."

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.938.04

FIRST VSAPI PATTERN DATE:

24 May 2013

VSAPI OPR PATTERN File:

9.939.00

VSAPI OPR PATTERN Date:

25 May 2013

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Close all opened browser windows

Step 3

Scan your computer with your Trend Micro product to delete files detected as JS_DLOADR.BPK. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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