Should I block it?

98%
Yes, 98% block recommendation.
Possible reasons:
Multiple malware detections
Performance resource utilization

Relationships

NPp5Stub.dll

Popular Screensavers Plugin Stub by Mindspark Interactive Network (Signed)

Remove NPp5Stub.dll
Version:   2,0,0,0
MD5:   df2b8cf613b10039bc2a8557642ca041
SHA1:   6d2d5521f8c15d587f05119c714f0a431d053be9
SHA256:   98cf43a1b904dfafb73f0d27b45979e9bfbf70789d1e7a0346ac404f5d3c0743
Warning 4 antivirus scanners has detected malware.

Overview

npp5stub.dll is malware that is loaded as dynamic link library that runs in the context of the Google Chrome web browser. It is installed with a couple of know programs including Popular Screensavers published by Mindspark Interactive Network and PopularScreensavers published by Mindspark Interactive Network. The file is digitally signed by Mindspark Interactive Network which was issued by the VeriSign certificate authority (CA).

DetailsDetails

File name:npp5stub.dll
Publisher:popularscreensavers.com
Product name:Popular Screensavers Plugin Stub
Description:Popular Screensavers Plugin Stub for 32-bit Windows
Typical file path:C:\Program Files\popularscreensavers\npp5stub.dll
File version:2,0,0,0
Size:30.72 KB (31,456 bytes)
Certificate
Issued to:Mindspark Interactive Network
Authority (CA):VeriSign
Effective date:Monday, April 9, 2012
Expiration date:Wednesday, May 6, 2015
Digital DNA
File packed:No
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
Mindspark Interactive Network
  69% remove
This is a web browser extension/toolbar that will modify the user's home page and search provider to Ask.com.
Mindspark Interactive Network
  65% remove
Installs a potentailly unwanted Ask.com powered toolbr - "As part of the download process for the Toolbar, you may be given the option to reset your homepage and/or reset your new tab page to an Ask® home page and new tab product. This provides relevant links and results when you make a search request in your browser address bar or if your browser address (DNS) request is invalid, misspelled or incorrectly formatted. This is a search bo...

BehaviorsBehaviors

Mozilla plugins
  • @popularscreensavers.com/Plugin
Google Chrome plugins
Stored per user in the directory 'Google\Chrome\User Data\Default\Preferences'
  • Name: 'NPp5Stub.dll'

MalwareMalware detections

Based on 40+ industry antivirus scanners, 4 of them detected the following malware.
Antivirus engineEngine versionDetection
AVG 2014.0.3629 Zango
Kaspersky 9.0.0.837 not-a-virus:WebToolbar.Win32.MyWebSearch.rn
Trend Micro HouseCall 9.700.0.1001 TROJ_GEN.F47V0409
VIPRE Antivirus 19448 MyWebSearch.J (v) (not malicious)

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 37.50%
Windows 8 37.50%
Windows 7 Professional 12.50%
Windows Vista Home Basic 12.50%

Distribution by countryDistribution by country

United States installs about 50.00% of Popular Screensavers Plugin Stub.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 40.00%
Acer 40.00%
Toshiba 20.00%
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