Trojan:Win32/Sirefef.AN DescriptionTrojan:Win32/Sirefef.AN is a pernicious infection that may bring in chaotic condition to the target computer. When you download the supposedly legit application from unfamiliar websites, chances that this malware may be masqueraded as a useful and free update or player program. On the other hand, Sirefef Trojan dropper also tends to pack in this piece. The installment will completes immediately when the pirated program installs, during which a start-up entry will be added to guarantee an automatic activation as longs as Windows gets loaded.
Trojan:Win32/Sirefef.AN is created to allow the unauthorized entry of remote hacker to track all your online activities on this computer and gather valuable information for further attack or other malicious commercial purposes. Besides, it also modifies browser settings to reroute your web search queries to several preset pages which looks innocent and plain at first sight. Similar tricks will be reflected on out-of-nowhere ads popups that are associated with spam sites.
Sirefef.AN also eats up system resources and severely slows even freezes the computer especially when playing online games or downloading files. Lat but not least, the Trojan downgrades system defense capabilities which may be exploited by other opportunistic cyber bugs. All will be result in a defenseless machine that is unable to perform most tasks, as well as the risk of violation of stored files and personal data. Therefore users are required to completely remove Trojan:Win32/Sirefef.AN once upon the detection.
Trojan:Win32/Sirefef.AN Removal GuidesAs mentioned above, the Trojan is quite stubborn and destructive otherwise it won't stay active for so long a time. You may wonder how does the nasty virus make to be running with scissors of so many updated antivirus. Such toughness should be credited to the mature and crafty hiding tactics and its own timely update. Apparently, manual removal is a preferred means to eliminate Sirefef.AN Trojan under this circumstance.
Referential steps on How to Manually Remove Trojan:Win32/Sirefef.AN
Step 1 : Go to Task Manager with Alt+Ctrl+Delete and stop its process.
Step 2: Search for and delete its related files in Local Disk C:
%Documents and Settings%\[UserName]\Application Data\[random]
Step 3: Navigate to remove the registry entries associated as below in Registry Editor:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\”Shell” = “[random].exe”
Notes: If you are still confused with above procedure, please click here to talk with an online expert for more details.