TR/Sirefef.AG.9 is a Trojan with Sirefef rootkit functionalities that can access the corrupted PC secretly via social networks, freeware, shareware, infected websites, spam email attachments, and can come packaged with other malware infections. TR/Sirefef.AG.9 may be associated with rogue anti-spyware applications and used to distribute counterfeit security programs. TR/Sirefef.AG.9 may display disturbing pop-up ads on the desktop of the affected computer. TR/Sirefef.AG.9 may gather information about the victim's online actions by retrieving logs from the Windows Registry and browser history. The gathered information may be then sent to a distant server controlled by cybercrooks. TR/Sirefef.AG.9 may be also able to cause unwanted redirects to suspicious websites on the hacked Internet browser.
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Security Doesn't Let You Download SpyHunter or Access the Internet?
Solutions: Your computer may have malware hiding in memory that prevents any program, including SpyHunter, from executing on your computer. Follow to download SpyHunter and gain access to the Internet:
- Use an alternative browser. Malware may disable your browser. If you're using IE, for example, and having problems downloading SpyHunter, you should open Firefox, Chrome or Safari browser instead.
- Use a removable media. Download SpyHunter on another clean computer, burn it to a USB flash drive, DVD/CD, or any preferred removable media, then install it on your infected computer and run SpyHunter's malware scanner.
- Start Windows in Safe Mode. If you can not access your Window's desktop, reboot your computer in 'Safe Mode with Networking' and install SpyHunter in Safe Mode.
- IE Users: Disable proxy server for Internet Explorer to browse the web with Internet Explorer or update your anti-spyware program. Malware modifies your Windows settings to use a proxy server to prevent you from browsing the web with IE.
If you still can't install SpyHunter? View other possible causes of installation issues.