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TROJ_DLOADE.EFX

October 23, 2012
 ALIASES:

Downloader.a!cpc (McAfee); Trojan.Gen.2 (Symantec); BehavesLike.Win32.Malware.bph (mx-v) (Sunbelt)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 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.

  TECHNICAL DETAILS

File Size:

142,336 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

23 Oct 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.

Installation

This Trojan creates the following folders:

  • %System Root%\hzsoft

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://dl.{BLOCKED}5.info/dls/axrrc.exe
  • http://dl.{BLOCKED}5.info/dls/qqcores.exe
  • http://dl.{BLOCKED}8.com/pv/IFoxInstall_3.2.0.0-s-c203023.exe
  • http://down4.{BLOCKED}n.com/hzsoft/youdaodict.rar

This report is generated via an automated analysis system.

  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

Search and delete this folder

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result.
  • %System Root%\hzsoft

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_DLOADE.EFX. 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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