![]() What is Network Discovery? For example, network discovery could be turned on, but you or your system administrator might have disabled a firewall exception that affects network.
![]() Vista Security is another malicious rogue antispyware program that appears on computer systems named. It’s a malicious application that enters random computer. It is an order of magnitude improvement in usablity. Published: June 1, 2005. By Tony Northrup. Security threats. Network discovery requires that the dnscache, fdrespub, ssdpsrv, and upnphost services are started, that the Windows Firewall exception for network discovery is enabled, and that other firewalls are not interfering with network discovery. If some but not. all of these are true, the network discovery state will be shown as Custom. Windows Vista Security Software ProvidersProtect Your PC with New Security Features in Windows Vista. Windows Vista. Protect Your PC with New Security Features in Windows Vista. Justin Harrison. At a Glance: Using Windows Security Center. Configuring and managing User Account Control settings. Scanning for spyware with Windows Defender. Several years ago, Microsoft Chairman (and then Chief Software Architect) Bill Gates called on employees to make trustworthy computing the company's highest priority. Along with. this announcement came a series of changes in how Microsoft developed software. All of these changes mean that Windows Vista is the most secure Windows. In this article I'll discuss the new security Control Panel applet, Windows Security Center, and the built- in protection including Windows Defender, Windows Firewall, and User Account Control. The Security Control Panel. When you open the Control Panel in Windows Vista you'll notice that it is arranged into ten areas of functionality, with most of the security- related applets spread between Security, Programs, and Network and Internet. You can use the Security applet to access many of the new security technologies that protect you in Windows Vista, as shown in Figure 1. Function. Description. Security Center. Check for updates; check security status; turn on automatic updating; check firewall status; require a password on wake up. Windows Firewall. Turn Windows Firewall on or off; allow a program through Windows Firewall. Windows Update. Turn on automatic updating; check for updates; view installed updates. Windows Defender. Scan for spyware and other potentially unwanted software. Internet Options. Change security settings; delete cookies; clear history. Parental Controls. Set up parental controls for any user; view activity reports. Bit. Locker Drive Encryption. Turn on Bit. Locker Drive Encryption. You can also check for Windows Updates, turn on Bit. Locker. Now, Security Center is all you need to manage important Windows security settings in one place, and it's even more useful in Windows Vista. Windows Security Center runs in the background and actively monitors four categories of functionality, as shown in Figure 2: Firewall, Automatic updating, Malware (viruses and spyware) protection, and Other security settings (Internet and User Account Control settings). Figure 2 Manage Security Settings in One Place (Click the image for a larger view)With Windows Security Center, you can see which application is acting as your computer's firewall or anti- spyware and antivirus solution. You can also check the status of firewall, automatic update, and user account control settings. Windows Security Center is unique in that it monitors the status of third- party applications in addition to built- in Windows technologies. It checks for the following items. Whether a firewall is installed and whether it is turned on. Whether an antivirus program is installed and if the definitions are up to date and real- time scanning is enabled. Whether an anti- spyware program is installed and if the definitions are up to date and real- time scanning is enabled. Windows Security Center uses two approaches to detect third- party antivirus and firewall applications. In manual mode, Windows Security Center searches for registry keys and files that let it detect the status of the software. It also queries Windows Management Instrumentation (WMI) providers made available by participating vendors that return the status of features. This means you can use non- Microsoft solutions for antivirus, anti- spyware, or firewall issues and still use Windows Security Center to monitor and protect your computer. Windows Security Center can be controlled by Group Policy. By default, it is disabled in domain environments. To turn on Windows Security Center, access the Computer Configuration\Administrative Templates\Windows Components\Security Center node. The name of the policy to turn it on is Turn on Security Center (Domain PCs only). Windows Security Center also monitors the status of User Account Control settings and Internet security settings. User Account Control lets you use your computer as a standard user rather than as an administrator, which is much safer. As a standard user, any changes you make can't affect the entire system and any software you install can only do so much damage. In Windows Vista, if you are running as a standard user on a computer that is not part of a domain and software needs to perform an action that affects the entire system, the OS prompts for the password of an administrator account. If you are running as an administrator, Windows Vista prompts for permission to execute the system- wide action so that you are aware of (and consent to) the action before it takes place. User Account Control is managed by Group Policy in a domain environment. If your computer is not part of a domain, it is handled by Local Security Policy. Policy settings are found under Computer Configuration\System Settings\Local Policies\Security Options in the Local Security Policy editor or Group Policy editor. You'll find the Local Security Policy editor in Control Panel under System and Maintenance . Click here to change your security settings.. You do this by clicking Restore my Internet security settings now, as shown in Figure 5. Figure 5 Eliminating a Risky Setting (Click the image for a larger view)Windows Defender. Rootkits, trojans, spyware, and other malicious software have become a huge problem. They put your information at risk, decrease your computer's performance, and can cause system crashes. Microsoft acquired Giant Software in 2. You can find this new technology built into Windows Vista as Windows Defender (which is also available as a download for Windows XP). After installing Windows Vista, you don't need to change any of your Windows Defender settings immediately. Since Windows Defender comes configured to provide maximum security with minimal interruption, you can focus on using your computer rather than securing it. Windows Defender provides real- time protection as soon as it is started, and it will automatically check for and download updated spyware definitions every night around 2 A. M., and automatically remove all high- threat risks. You can adjust the settings by selecting Tools . It uses the nine security agents listed in Figure 6 to monitor different parts of your system for application behavior that is characteristic of spyware. Together, the Windows Defender security agents monitor almost all common entry points of spyware. Agent. Monitors. Internet Explorer configuration. Browser security settings. Internet Explorer downloads. Applications that work with Internet Explorer, such as Active. X controls and software installation applications. Internet Explorer add- ons (browser helper objects)Applications that automatically run when you start Internet Explorer. Auto Start. Applications that start when Windows starts, including applications that start via the registry and the Windows start- up folder. System configuration. Security- related settings in Windows. Services and drivers. Services and drivers as they interact with Windows and applications. Windows add- ons. Software utilities that integrate with Windows. Application execution. Applications when they start, and their execution. Application registration (API hooks)Files and tools in the operating system where applications can insert themselves to run. Threat Response. Windows Defender alerts you when it finds potentially unwanted software or detects suspicious behavior. When innocuous (low threat) changes occur, Windows Defender lets you know by displaying an exclamation point in the system tray. For more severe threats (medium or high), Windows Defender displays a yellow or red dialog depending upon the threat level, as shown in Figure 7. These kinds of threats require an immediate response. Figure 7 Red Window Indicates High- Level Threat (Click the image for a larger view)All actions Windows Defender performs are logged in the System Event Log with source . Such actions include definition updates and spyware scans and removals. Windows Defender threat alerts are intelligent, so you can continue working through them. Multiple threats can be listed and you can choose to respond to all threats (. You can also configure threat alerts to react differently based upon unclassified threats and known software that is allowed to run. To configure threat alerts, open Windows Defender and click Tools . Scroll down to . If the application is being mistaken for spyware, you can report a false positive at microsoft. Protection On Demand. Windows Defender watches carefully for potentially unwanted software, but you can also start spyware scans whenever you think it's necessary. Windows Defender offers three types of scans. A Quick Scan rapidly checks places on your computer that spyware is most likely to infect. A Full Scan scans all files on your hard disk, running applications, the registry, and other places. A Custom Scan lets you scan specific files or folders; it automatically runs a Quick Scan when it begins. To initiate a scan, start Windows Defender and click the down arrow next to the Scan button; then select the type of scan you'd like to start, as shown in Figure 8. Figure 8 Choose the Type of Scan (Click the image for a larger view)When Windows Defender detects a threat during a scan, it displays a description of the threat and actions you can take to resolve the threat. By default, it displays the best action to take. If multiple threats are found, you can select responses and apply them all at once by clicking Apply Actions, or you can remove all threats by clicking Remove All. Among the actions you can take are. Remove—Remove the threat from your system completely. Ignore—Ignore the threat. The next time you scan, Windows Defender will detect the threat again. Quarantine—Temporarily disables the threat. You can use this to test whether removing the threat has any ill affects on your system.
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