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PUA:Win32/SpeedChecker

First posted on 07 July 2016.
Source: Microsoft

Aliases :

There are no other names known for PUA:Win32/SpeedChecker.

Explanation :

Installation

This application can be downloaded from websites that offer third-party software downloads. For example, we have seen it downloaded from:

• www.wifiprotector.com
• gsf-cf.softonic.com
• dl.pcspeeduppro.co
• ftp-stahuj.centrum.cz
• cdn2727.pcspeeduppro.com

We have seen this application use the following file names:

• pcspsetuprc.exe
• wifiprotector.exe
• pcspsncwros_us7.exe
• pcspsetupnad2.exe
• pcspsetuprmimr.exe
• pcspsncwros_us3.exe
• pcspsncwrous7.exe
• pcspsncwsec_us7.exe
• pcspsetuprc (1).exe

It can be digitally signed by the following vendors:

• PC Speedup Pro
• Optimal Software s.r.o.
• Safe Download Limited
• COMODO Time Stamping Signer
• Safe Download Ltd.

We have seen this application using product names such as:

• PC Speedup-Pro
• PC Speedup Pro
• PC Speed Up
• PC-Speedup-Pro
• PC Speed Up

This application communicates with domains such as:

• cc.pcspeeduppro.net
• trkr.pcspeeduppro.net
• link.justcloud.com
• www.boorsekala.com
• 167.114.14.108

For example:

• cc.pcspeeduppro.net/ProductPrice.svc/getcountrycode
• link.justcloud.com/5638ad0548cd7/click
• www.boorsekala.com:8080/rss.php?

Payload

Exhibits suspicious behaviors

We have observed this application exhibit the following potentially unwanted behavior on PCs:

• Installs programs that start automatically when your PC starts
• Injects into other processes on your system
• Changes your Internet Explorer proxy auto-configuration setting - we often see this used to inject ads in your browser as you browse the web
• Injects code into your browsers - this suspicious behavior is often used to bypass firewall settings or to change how your browser works
• Modifies your DNS settings - we sometimes see this used to inject ads into your browser as you browse the web

Installs other programs

We have seen this application install other software on your PC. Some of these applications might be bundled during the installation process and not intended to be installed. We have seen it installing programs such as:

• PC Speed Up
• WiFi Protector
• Search Protect
• Social2Search
• Universal Driver Updater
• Advanced Password Manager
• Caster
• SpeedChecker Service
• Max Driver Updater

This description was published using automated analysis.

Last update 07 July 2016

 

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