Analysis by: Jimelle Monteser
ALIASES:

Exploit.MS04.CVE-2004-0210-2012-1723.JX (Ikarus), HEUR:Exploit.Java.CVE-2012-1723.gen (Kaspersky), Exploit:Java/CVE-2013-0422, Exploit:Java/CVE-2013-0422, Exploit:Java/CVE-2013-0422, Exploit:Java/CVE-2013-0422, Exploit:Java/CVE-2013-0422, TrojanDownloader:Java/OpenStream.BY (Microsoft), Java/Exploit.Agent.NPZ trojan (NOD32)

 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:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

  TECHNICAL DETAILS

File Size: 12,376 bytes
File Type: JAR
Initial Samples Received Date: 21 May 2014

Arrival Details

This Trojan may arrive bundled with malware packages as a malware component.

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

Download Routine

This Trojan downloads a possibly malicious file from a certain URL. The URL where this malware downloads the said file depends on the following parameter(s) passed on to it by its components:

  • EmUWSYsqO

Other Details

This Trojan requires the following additional components to properly run:

  • WDkma.class

  SOLUTION

Minimum Scan Engine: 9.700
FIRST VSAPI PATTERN FILE: 10.808.01
FIRST VSAPI PATTERN DATE: 21 May 2014
VSAPI OPR PATTERN File: 10.809.00
VSAPI OPR PATTERN Date: 22 May 2014

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 JAVA_EXPLOYT.YYP. 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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