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TROJ_VUNDO.JXS

January 23, 2013
 Analysis by: Anthony Joe Melgarejo
 ALIASES:

Trojan:Win32/Vundo.gen!AV (Microsoft), Trojan.Vundo!gen9 (Symantec), Win32/Kryptik.NDC trojan (ESET), Trojan.Win32.Kryptik.laq (Sunbelt), W32/Kryptik.NPN!tr (Fortinet), W32/Virtumonde.CH.gen!Eldorado (FProt)

 PLATFORM:

Windows 2000, Windows XP (32-bit and 64-bit), Windows Server 2003, Windows Vista (32-bit and 64-bit), Windows 7 (32-bit and 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. It arrives as a component bundled with malware/grayware packages.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

126,976 bytes

File Type:

DLL

Initial Samples Received Date:

18 Jan 2013

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.

It arrives as a component bundled with malware/grayware packages.

Other Details

This Trojan requires its main component to successfully perform its intended routine.

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.644.04

FIRST VSAPI PATTERN DATE:

18 Jan 2013

VSAPI OPR PATTERN File:

9.645.00

VSAPI OPR PATTERN Date:

19 Jan 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

Scan your computer with your Trend Micro product to delete files detected as TROJ_VUNDO.JXS. 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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