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TROJ_DIPLE.SS

October 31, 2012
 Analysis by: Sabrina Lei Sioting
 ALIASES:

Trojan-Dropper.Win32.Injector.eivx (Kaspersky), VBObfus.dq (McAfee), Trojan.Win32.Generic!BT (Sunbelt), TR/Drop.Injector.eiv (Antivir), W32/Downloader.DN.gen!Eldorado (Authentium), W32/VB.DVNK!tr (Fortinet), W32/Downloader.DN.gen!Eldorado (Fprot), Trojan-Downloader.Win32.Beebone (Ikarus), Win32/TrojanDownloader.VB.PUQ (Eset),

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • 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.

As of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

20,480 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

22 May 2012

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.

Download Routine

This Trojan connects to the following website(s) to download and execute a malicious file:

  • http://{BLOCKED}te.ftp21.net:34511/a/

It saves the files it downloads using the following names:

  • start1.exe

As of this writing, the said sites are inaccessible.

  SOLUTION

Minimum Scan Engine:

9.300

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Identify and terminate files detected as TROJ_DIPLE.SS

[ Learn More ]
  1. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  2. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_DIPLE.SS. 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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