ADW_EASYDOWN

 Analysis by: rolandde

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Adware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This adware may be manually installed by a user.

  TECHNICAL DETAILS

File Size:

4,652,512 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

12 Oct 2011

Payload:

Drops files, Modifies system registry, Downloads files

Arrival Details

This adware may be manually installed by a user.

Installation

This adware drops the following non-malicious files:

  • %System Root%\Documents and Settings\All Users\Desktop\Click-n-Load Quick Start.lnk
  • %System Root%\Documents and Settings\All Users\Desktop\EasyDownloads.lnk
  • %System Root%\Documents and Settings\All Users\Start Menu\EasyDownloads\Click-n-Load Quick Start.lnk
  • %System Root%\Documents and Settings\All Users\Start Menu\EasyDownloads\EasyDownloads.lnk
  • %System Root%\Documents and Settings\All Users\Start Menu\EasyDownloads\Uninstall.lnk
  • %Program Files%\Easy Downloads\click-n-load_ico.ico
  • %Program Files%\Easy Downloads\current-cloud.html
  • %Program Files%\Easy Downloads\easydl.exe
  • %Program Files%\Easy Downloads\easydownloads.exe
  • %Program Files%\Easy Downloads\gotourl.url
  • %Program Files%\Easy Downloads\htmlayout.dll
  • %Program Files%\Easy Downloads\uninstall.exe
  • %User Temp\htmlayout.dll

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

It creates the following folders:

  • %System Root%\Documents and Settings\All Users\Start Menu\EasyDownloads
  • %Program Files%\Easy Downloads

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

Autostart Technique

This adware adds the following registry entries to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
EasyDownloads = "%Program Files%\Easy Downloads\easydownloads.exe" -tray

Other System Modifications

This adware adds the following registry entries as part of its installation routine:

HKEY_CLASSES_ROOT\Magnet\DefaultIcon
@ = "%Program Files%\Easy Downloads\easydownloads.exe",0

HKEY_CLASSES_ROOT\Magnet\shell
@ = open

HKEY_CLASSES_ROOT\Magnet\shell\
open\command
@ = "%Program Files%\Easy Downloads\easydownloads.exe" "%1"

HKEY_CLASSES_ROOT\Magnets
@ = Magnets URI

HKEY_CLASSES_ROOT\Magnets
Content Type = application/x-magnets

HKEY_CLASSES_ROOT\Magnets\DefaultIcon
@ = "%Program Files%\Easy Downloads\easydownloads.exe",0

HKEY_CLASSES_ROOT\Magnets\shell
@ = open

HKEY_CLASSES_ROOT\Magnets\shell\
open\command
@ = "%Program Files%\Easy Downloads\easydownloads.exe" "%1"

HKEY_CURRENT_USER\Software\EasyDownloads
version = tr74adv5

HKEY_CURRENT_USER\Software\EasyDownloads
userid = {user ID}

HKEY_CURRENT_USER\Software\EasyDownloads
date = {encoded value}

HKEY_CURRENT_USER\Software\EasyDownloads
installdate = {hex values}

HKEY_CURRENT_USER\Software\EasyDownloads
SoftID = {SID}

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\ProtocolExecute\magnet
WarnOnOpen dword:00000000 = 0

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\ProtocolExecute\magnets
WarnOnOpen = 0

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
EasyDownloads
DisplayName = EasyDownloads - fastest downloads in two clicks!

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
EasyDownloads
UninstallString = "%Program Files%\Easy Downloads\uninstall.exe"

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
EasyDownloads
DisplayIcon = %Program Files%\Easy Downloads\easydownloads.exe

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
EasyDownloads
Publisher = http://izloader.com/

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
EasyDownloads
InstallLocation = %Program Files%\Easy Downloads

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
EasyDownloads
URLInfoAbout = http://izloader.com/

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
EasyDownloads
DisplayVersion = 1.0.0.1

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
%Program Files%\Easy Downloads\easydownloads.exe = %Program Files%\Easy Downloads\easydownloads.exe:*:Enabled:EasyDownloads

HKEY_CLASSES_ROOT\Magnet
@ = Magnet URI

HKEY_CLASSES_ROOT\Magnet
Content Type = application/x-magnet

HKEY_CLASSES_ROOT\Magnet
URL = Protocol

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
%Program Files%\Easy Downloads\easydl.exe = %Program Files%\Easy Downloads\easydl.exe:*:Enabled:EasyDownloadsDL

It adds the following registry keys as part of its installation routine:

HKEY_CLASSES_ROOT\Magnets\DefaultIcon

HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Uninstall\
EasyDownloads

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\ProtocolExecute\magnet

HKEY_CLASSES_ROOT\Magnets\shell

HKEY_CLASSES_ROOT\Magnet\shell

HKEY_CLASSES_ROOT\Magnet

HKEY_CLASSES_ROOT\Magnets

HKEY_CLASSES_ROOT\Magnet\DefaultIcon

HKEY_CLASSES_ROOT\Magnets\shell\
open

HKEY_CLASSES_ROOT\Magnets\shell\
open\command

HKEY_CURRENT_USER\Software\EasyDownloads

HKEY_LOCAL_MACHINE\SOFTWARE\EasyDownloads

HKEY_CURRENT_USER\Software\Microsoft\
Internet Explorer\ProtocolExecute\magnets

NOTES:
It is a download manager software that is configured to download a file named "La signora in giallo" from the following torrent site:

  • http://{BLOCKED}tz.eu/

As of writing, it fails to download the said file. It connects to the following sites:

  • http://{BLOCKED}n-load.com/software/ - software download site
  • http://www.{BLOCKED}r.com/ - torrent site

It may also install a bundled browser toolbar software.

  SOLUTION

Minimum Scan Engine:

9.200

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

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

Step 3

Remove ADW_EASYDOWN by using its own Uninstall option

[ Learn More ]
To uninstall the grayware process


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