Analysis by: Jeanne Jocson
 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Downloaded from the Internet, Dropped by other malware, Manually installed by user

This potentially unwanted application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.

  TECHNICAL DETAILS

File Size: 2,167,552 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 30 Sep 2016
Payload: Downloads files, Connects to URLs/IPs

Arrival Details

This potentially unwanted application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It may be manually installed by a user.

Other System Modifications

This potentially unwanted application adds the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Webitar Production Inc.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder

It adds the following registry entries:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder
DisplayName = "FileFinder"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder
DisplayVersion = "1.0.1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder
Publisher = "Webitar Production Inc."

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder
UninstallString = ""C:\ProgramData\Webitar Production Inc.\products\FileFinder\uninstall\uninstall.exe""

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder
QuietUninstallString = ""C:\ProgramData\Webitar Production Inc.\products\FileFinder\uninstall\uninstall.exe" -s"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder
DisplayIcon = ""C:\Program Files\FileFinder\icon.ico""

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder
NoModify = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Uninstall\
FileFinder
NoRepair = "1"

HKEY_LOCAL_MACHINE\SOFTWARE\Webitar Production Inc.
uuid = "{UUID}"

Dropping Routine

This potentially unwanted application drops the following files:

  • %Program Files%\FileFinder\FileFinder.exe
  • %Program Files%\FileFinder\icon.ico
  • %Program Files%\FileFinder\libeay32.dll
  • %Program Files%\FileFinder\ssleay32.dll
  • %Desktop%\FileFinder.lnk
  • %Start Menu%\FileFinder\FileFinder.lnk
  • %ProgramData%\Webitar Production Inc\products\FileFinder\uninstall\uninstall.cfg
  • %ProgramData%\Webitar Production Inc\products\FileFinder\uninstall\uninstall.arc
  • %ProgramData%\Webitar Production Inc\products\FileFinder\uninstall\uninstall.exe
  • %ProgramData%\Webitar Production Inc\products\FileFinder\installed.tag

(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Start Menu% is the Start Menu folder, where it usually is C:\Documents and Settings\{user name}\Start Menu on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming\Microsoft\Windows\Start Menu on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %ProgramData% is the Program Data folder, where it usually is C:\Program Files in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\ProgramData in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Download Routine

This potentially unwanted application connects to the following URL(s) to download its component file(s):

  • http://dl1.{BLOCKED}ind.net/archive.php

Other Details

This potentially unwanted application does the following:

  • It reports the installation to the following URLs:
    • http://dl1.{BLOCKED}ind.net/win/post
    • http://dl1.{BLOCKED}ind.net/win/report

NOTES:

It appears with the GUI(Graphic User Interface) of File Finder upon execution:

It connects to the following URL upon execution of the installer while the user hasn't yet clicked the "I Agree" button: http://dl1.{BLOCKED}ind.net/win/post

The installer doesn't give an option to the user to cancel the installation.

Installed FileFinder Software GUI:

  SOLUTION

Minimum Scan Engine: 9.800
SSAPI PATTERN File: 1.769.00
SSAPI PATTERN Date: 22 Sep 2016

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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

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.

 
  • In HKEY_LOCAL_MACHINE\SOFTWARE\Webitar Production Inc.
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\FileFinder

Step 4

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %Program Files%\FileFinder\FileFinder.exe
  • %Program Files%\FileFinder\icon.ico
  • %Program Files%\FileFinder\libeay32.dll
  • %Program Files%\FileFinder\ssleay32.dll
  • %Desktop%\FileFinder.lnk
  • %Start Menu%\FileFinder\FileFinder.lnk
  • %ProgramData%\Webitar Production Inc\products\FileFinder\uninstall\uninstall.cfg
  • %ProgramData%\Webitar Production Inc\products\FileFinder\uninstall\uninstall.arc
  • %ProgramData%\Webitar Production Inc\products\FileFinder\uninstall\uninstall.exe
  • %ProgramData%\Webitar Production Inc\products\FileFinder\installed.tag

Step 5

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