ALIASES:

Trojan-Downloader.Win32.Tibs.ta (Kaspersky), Downloader.MisleadApp (Symantec), WORM/Zhelatin.Gen (Avira), Mal/TibsPk-D (Sophos)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: Others

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  TECHNICAL DETAILS

Heuristic Detection

This is the Trend Micro heuristic detection for suspicious files that manifest similar behavior and characteristics as the following malware:

If your Trend Micro product detects a file under this detection name, do not execute the file.

  SOLUTION

Minimum Scan Engine: 9.300
VSAPI OPR PATTERN File: 5.379.00
VSAPI OPR PATTERN Date: 01 Jul 2008

Scan your computer with your Trend Micro product to delete files detected as MAL_NAIX-5. 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.

NOTES:

Note: If your Trend Micro product detects a file under this detection name, do not execute the file. Delete it immediately especially if it came from an untrusted or an unknown source (e.g., a Web site of doubtful nature). However, if you have reason to believe that the detected file is non-malicious, you can submit a sample for analysis. Detailed analysis will be done on submitted samples, and corresponding removal instructions will be provided, if necessary.

Submitting Samples

Sample files for submission must be in ZIP format and should be password-protected. To submit a ZIP file, file compression software such as Winzip must be used. A trial version of Winzip is available at www.winzip.com.

To compress a file, please follow the steps below:

  1. Right-click on the file and select Add to Zip.
  2. Enter a file name for the zip file.
  3. On the Options menu, choose Encrpyt. In the input box, type virus. This serves as the password for the zip file.
  4. Send the sample through the following channels:
    • For Trend Micro Premium customers, please submit a virus support case by clicking here:
    https://premium.trendmicro.com/premiumsupport/en/US/PSP/logon/logon.asp
    • For Trend Micro non-Premium customers, please contact your local support network here:
    http://www.trendmicro.com/en/about/contact/overview.htm


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