Common Symptoms of an Infected System

This section provides a quick introduction of some common symptoms on Windows systems infected by malware (Malicious Software).

If your Windows system is infected by a malware (Malicious Software), what are common symptoms. Here is a summary of common symptoms of malware infected in Windows systems based on my experiences:

Anti-Virus Scan Alerts - Obviously, if your anti-virus tool displays a security alert message, it's most likely that your system is infected.

Windows Firewall Alerts - Obviously, if the Windows Firewall displays a security alert message, it's most likely that your system is infected.

Automatic Pop-Up Windows - If see a pop-up window showing up automatically with an advertisement or a faked Windows system message, it's most likely that your system is infected.

Automatic Play of Audio Ads - If you hear an audio advertisement automatically played in the background, it's most likely that your system is infected.

Sudden Slowness - If you experience a sudden slowness on your computer system, it's very likely that your system is infected.

Sudden Change Of Browser Behavior - If you notice a sudden change of your browser behavior, like a new start up web page, a new tool bar, a new search engine, extra advertisements on web pages, strange web page layouts, etc., it's very likely that your browser is infected.

Friends Receiving Spamming Emails from You - If your friends are receiving spamming emails from you, it's very likely that your system is infected

Unexpected System Behavior - If you experience some unexpected behaviors from your Windows system, like error message box when you start or shutdown the system, it's very likely that your system is infected.

Unexpected Application Behavior - If you experience some unexpected behaviors when you run your daily applications like failed to start your email application or word processing application, it's likely that your system is infected.

Table of Contents

 About This Windows Security Book

 Windows 8: System Security Review

 Windows 8: System Security Protection

 Windows 8 System Recovery

 Windows 8 Defender for Real-Time Protection

 Windows 7: System Security Review

 Windows 7: System Security Protection

 Windows 7 System Recovery

 Windows 7 Forefront Client Security

 Norton Power Eraser - Anti-Virus Scan Tool

 McAfee Virus and Malware Protection Tools

 Spybot - Spyware Blocker, Detection and Removal

 Keeping Firefox Secure

 Keeping IE (Internet Explorer) Secure

Malware (Adware, Spyware, Trojan, Worm, and Virus)

 What Is Malware (Malicious Software)?

 Common Ways of Getting Infected

Common Symptoms of an Infected System

 Common Ways of Malware Executions

 Malware Removal by Anti-Virus Tools

 Identify Malware Process Manually

 Delete Malware Program Files Manually

 HijackThis - Browser Hijacker Diagnosis Tool

 IE Add-on Program Listing and Removal

 "Conduit Search" - Malware Detection and Removal

 "Tube Dimmer", "Scorpion Saver" or "Adpeak" Malware

 Malware Manual Removal Experience

 Vundo (VirtuMonde/VirtuMundo) - vtsts.dll Removal

 Trojan and Malware "Puper" Description and Removal

 VSToolbar (VSAdd-in.dll) - Description and Removal

 PWS (Password Stealer) Trojan Infection Removal

 MS08-001 Vulnerability on Windows Systems

 Antivirus System PRO

 References

 PDF Printing Version