Home Malware Programs Potentially Unwanted Programs (PUPs) RinoReader

RinoReader

Posted: May 4, 2015

Threat Metric

Ranking: 13,455
Threat Level: 1/10
Infected PCs: 684
First Seen: May 4, 2015
Last Seen: August 29, 2023
OS(es) Affected: Windows

RinoReader is an adware program that provides some legitimate features to justify its injection of new, sponsored content into your browser. Potentially Unwanted Programs (PUPs) like RinoReader may be evaluated individually, but may turn into unintended threats to your browser's security or sources of harm to your Web-surfing experience. In most cases, malware researchers see few to no reasons not to delete RinoReader with a qualified anti-adware program and find less advertising-heavy sources of its features.

Reading PDFs with a Rhino's Weight in Advertisements

RinoReader markets itself as an alternative to other brands of PDF-reading tools, such as Acrobat, albeit only as an add-on for your default Web browser. In addition to this feature, malware experts also saw RinoReader including features characteristic of Potentially Unwanted Programs that could harm your browsing experience, both in terms of security and quality of life. They narrowed the most notable of these side effects from RinoReader down as follows:

  • RinoReader may inject sponsored advertisements into your browser's Web pages, potentially interfering with the format of the websites in question.
  • RinoReader may reset your browser's homepage or new tab settings, a function also called a browser hijack.
  • RinoReader may install additional software besides itself, including, but not limiting to other browser add-ons or toolbars.

Along with these highly visible symptoms, RinoReader also may be identified through its files, which you can locate in the 'rinoreader' subdirectory of your Program Files folder. Unlike some adware, malware researchers have failed to find any signs of RinoReader's mislabeling its files for concealment purposes.

Since most of these side effects run the risk of exposing you to other, unwanted software or reduce your control over your Web browser, malware experts have classified RinoReader as a Potentially Unwanted Program. Although investigations are still verifying all the browsers modifiable by RinoReader, this adware only has been seen on Windows systems, including Windows Vista, 7 and 8.

Ducking Away from Charging Advertrisements

Despite RinoReader being installable at its website, RinoReader also may make use of alternate distribution methods, such as being bundled with third-party freeware on other sites. Many of these bundle-based installation tools can be identified by qualified PC security products. However, after being installed, RinoReader may install additional software, on its own, in addition to any changes RinoReader makes to your Web browser. The full consequences of any individual RinoReader installations are, therefore, highly variable.

Malware researchers rarely find any software benefits worth taking the risk of allowing third parties to control your Web browser or what applications are on your machine. While PDF readers provide valuable services for viewing specialized Web content, in no case should their functions be forced to include homepage hijackings, advertisement injections or other 'features' typical to RinoReader. Unless you've chosen to install this adware intentionally, using proper anti-adware solutions to delete RinoReader naturally should be considered as your first response.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



C:\Program Files\RinoReader\uninst.exe File name: C:\Program Files\RinoReader\uninst.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
C:\Program Files\rinoreader\rinoreader.exe File name: C:\Program Files\rinoreader\rinoreader.exe
MD5: 974375d436ff17602501eef7f1fe0333
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
pdfium.dll File name: pdfium.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
PdfiumViewer.dll File name: PdfiumViewer.dll
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\..\..{RegistryKeys}Software\Classes\RinoReaderSOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\RinoReader.exeSoftware\RinoReaderSOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\App Paths\RinoReader.exeHKEY_LOCAL_MACHINE\Software\[APPLICATION]\Microsoft\Windows\CurrentVersion\Uninstall..{Uninstaller}RinoReader

Additional Information

The following directories were created:
%APPDATA%\Microsoft\Windows\Start Menu\Programs\RinoReader%PROGRAMFILES%\RinoReader%PROGRAMFILES(x86)%\RinoReader
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