Analysis by: Rhena Inocencio
ALIASES:

PUA.Maltrec.TS!g15 (Symantec), Yontoo (fs) (Sunbelt)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Adware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This adware arrives as a component bundled with malware/grayware packages. It may be manually installed by a user.

  TECHNICAL DETAILS

File Size: 317,728 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 13 Jun 2014
Payload: Connects to URLs/IPs

Arrival Details

This adware arrives as a component bundled with malware/grayware packages.

It may be manually installed by a user.

Autostart Technique

This adware registers itself as a system service to ensure its automatic execution at every system startup by adding the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight
ImagePath = "{grayware path and filename}"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight
DisplayName = "Util FindRight"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight
ObjectName = "LocalSystem"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight
Type = "10"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight
Start = "2"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight
ErrorControl = "1"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Enum\Root\LEGACY_UTIL_FINDRIGHT\
0000
Service = "Util FindRight"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Enum\Root\LEGACY_UTIL_FINDRIGHT\
0000
Legacy = "1"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Enum\Root\LEGACY_UTIL_FINDRIGHT\
0000
ConfigFlags = "0"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Enum\Root\LEGACY_UTIL_FINDRIGHT\
0000
Class = "LegacyDriver"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Enum\Root\LEGACY_UTIL_FINDRIGHT\
0000
DeviceDesc = "Util FindRight"

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Enum\Root\LEGACY_UTIL_FINDRIGHT\
0000
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"

It registers as a system service to ensure its automatic execution at every system startup by adding the following registry keys:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight\Enum

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\Util FindRight\Security

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Enum\Root\LEGACY_UTIL_FINDRIGHT

Other System Modifications

This adware adds the following registry keys:

HKEY_CURRENT_USER\Software\FindRight

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

HKEY_CURRENT_USER\Software\FindRight
is = "def_FindRight"

HKEY_CURRENT_USER\Software\FindRight
iid = "def_FindRight"

HKEY_CURRENT_USER\Software\FindRight
id = "{installation date and time}

NOTES:

It connects to the following URL to report its installation:

  • http://api.{BLOCKED}right.com/rs

This adware may display advertisements such as popups and banners in browsers.

This adware accepts the following parameter:

  • -install Service

  SOLUTION

Minimum Scan Engine: 9.700

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

Restart in Safe Mode

[ Learn More ]

Step 3

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

 
  • HKEY_CURRENT_USER\Software\
  • FindRight
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\
  • Util FindRight
  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\
  • LEGACY_UTIL_FINDRIGHT

Step 4

Restart in normal mode and scan your computer with your Trend Micro product for files detected as ADW_FINDRIGHT. 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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