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Like other fake security software, Antivirus Scan is distributed with the help of trojans or other malicious software. Moreover, the authors of of the fake program may also distribute it on social networks (Twitter, My Space, Facebook, etc) and spam emails. Please be careful when opening attachments and downloading files or otherwise you can end up with a rogue program on your computer. Remember that the rogue is a highly dangerous application and you need remove Antivirus Scan as soon as possible!
During installation, the rogue will be configured to start automatically when Windows loads. Once Antivirus Scan is started, it will imitate a system scan and detect a lot of various infections that will not be fixed unless you first purchase the program. Important to know, all of these reported infections are fake and don’t actually exist on your computer! So you can safely ignore the scan results that Antivirus Scan gives you.
While Antivirus Scan is running, it will flood your computer with warnings and fake security alerts. Some of the alerts:
Windows Security alert
Windows reports that computer is infected. Antivirus software
helps to protect your computer against viruses and other
security threats. Click here for the scan your computer. Your
system might be at risk now.
INFILTRATION ALERT
Your computer is being attacked by a Internet
Virus. It could be a password stealing attack, a
trojan – dropper or similar.
Moreover, Antivirus Scan will hijack Internet Explorer so that it will randomly show a warning page which states:
Internet Explorer Warning – visiting this web site may harm your computer!
Most likely causes:
The website contains exploits that can launch a malicious code on your computer
Suspicious network activity detected
There might be an active spyware running on your computer
Of course, like false scan results above, all of these alerts are just a fake. All of them are created in order to convince you that you must purchase the full version of Antivirus Scan and, thus, fix the entire system. So, you can safely ignore the fake warnings and alerts.
As you can see, all Antivirus Scan does is fake and you should stay away from the malicious application! If your PC has been infected with the rogue, then ignore all it gives you and follow the removal instructions below in order to remove Antivirus Scan and any associated malware from your computer for free.
O4 – HKCU\..\Run: [{RANDOM}] %Temp%\{RANDOM}\{RANDOM}.exe
Step 1. Reboot your computer in Safe mode with networking
Restart your computer.
After hearing your computer beep once during startup, start pressing the F8 key on your keyboard. On a computer that is configured for booting to multiple operating systems, you can press the F8 key when the Boot Menu appears.
Instead of Windows loading as normal, Windows Advanced Options menu appears similar to the one below.
Windows Advanced Options menu
When the Windows Advanced Options menu appears, select Safe mode with networking and then press ENTER.
Step 2. Reset Internet Explorer Proxy options
Run Internet Explorer, Click Tools -> Internet Options as as shown in the screen below.
Internet Explorer – Tools menu
You will see window similar to the one below.
Internet Explorer – Internet options
Select Connections Tab and click to Lan Settings button. You will see an image similar as shown below.
Internet Explorer – Lan settings
Uncheck “Use a proxy server” box. Click OK to close Lan Settings and Click OK to close Internet Explorer settings.
Step 3. Stop Antivirus Scan from running
Download HijackThis from here. Run it and click Scan button. Look for lines that looks like:
O4 – HKCU\..\Run: [{RANDOM}] {PATH}\Temp\{RANDOM}.exe
Example:
O4 – HKLM\..\Run: [audpdogk] c:\docume~1\user\locals~1\temp\akotrowvc\bcgcihiagnz.exe
O4 – HKCU\..\Run: [audpdogk] C:\Users\User\AppData\Local\akotrowvc\bcgcihiagnz.exe
Note: list of infected items may be different. If you unsure, then check it in Google. Skip this step, if you does not find any malicious lines.
Place a checkmark against each of them. Once you have selected all entries, close all running programs then click once on the “fix checked” button. Close HijackThis.
Step 4. Remove Antivirus Scan associated malware
Download MalwareBytes Anti-malware (MBAM). Close all programs and Windows on your computer.
Double Click mbam-setup.exe to install the application. When the installation begins, keep following the prompts in order to continue with the installation process. Do not make any changes to default settings and when the program has finished installing, make sure a checkmark is placed next to Update Malwarebytes’ Anti-Malware and Launch Malwarebytes’ Anti-Malware, then click Finish.
If an update is found, it will download and install the latest version.
Once the program has loaded you will see window similar to the one below.
Malwarebytes Anti-Malware Window
Select Perform Quick Scan, then click Scan, it will start scanning your computer. This procedure can take some time, so please be patient.
When the scan is complete, click OK, then Show Results to view the results. You will see a list of infected items similar as shown below. Note: list of infected items may be different than what is shown in the image below.
Malwarebytes Anti-malware, list of infected items
Make sure all entries have a checkmark at their far left and click “Remove Selected” button to remove Antivirus Scan. MalwareBytes Anti-malware will now remove all of associated Antivirus Scan files and registry keys and add them to the programs’ quarantine. When MalwareBytes Anti-malware has finished removing the infection, a log will open in Notepad and you may be prompted to Restart.
Note 1: if you can not download, install, run or update Malwarebytes Anti-malware, then follow the steps: Malwarebytes won`t install, run or update – How to fix it.
Note 2: if you need help with the instructions, then post your questions in our Spyware Removal forum.
Note 3: your current antispyware and antivirus software let the infection through ? Then you may want to consider purchasing the FULL version of MalwareBytes Anti-malware to protect your computer in the future.
%Temp%\{RANDOM}\
%Temp%\{RANDOM}\{RANDOM}.exe
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PhishingFilter | “Enabled” = “0?
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings | “ProxyOverride” = “”
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings | “ProxyServer” = “http=127.0.0.1:30215?
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings | “ProxyEnable” = “1?
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | {RANDOM}
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run | {RANDOM}
Internet Antivirus 2011 is a fake (rogue) security application. It pretends to be a legitimate antivirus software that is used to detect and remove viruses, malware, worms and trojans but, in reality, is a totally scam. The rogue blocks legitimate antispyware and antivirus tools, hijacks browsers, redirects you to malicious websites, displays numerous fake security alerts and nag screens in order to trick you into thinking your computer is heavy infected. It hopes that you will next purchase the full version of the software to remove all what it found. Important to note, the fake antivirus is unable to detect and remove any infections, so do not pay for the bogus software! 
Avira AntiVir Personal Edition offre un'eccellente protezione da virus, spyware e rootkit minacce. E molto leggero sulle risorse e lavora duro per rilevare eventuali malware nel vostro sistema. In realtà, alcuni dicono che questo è meglio che quasi ogni altro programma antivirus gratuito. Tuttavia, Avira AntiVir non avere web o capacità di scansione di posta elettronica. Questa funzione è disponibile nella versione completa, che devi pagare per ottenere solo. Ma non iniziare a cercare lontano ancora perché la mancanza di e-mail, funzionalità di scansione di questo software significa solo che non avvertirà preventivamente in apertura un e-mail infetto. Se si apre uno, il software inizia corso balistici su questo malware e avvisa su di esso.Da l?, è possibile scegliere che cosa fare con le opzioni offerte. 
Avast! Antivirus gratuito è anche uno dei più noto software oggi. Il tasso di rilevamento di virus è uguale con Avira AntiVir.Questo antivirus gratis ha molti, se non la maggior parte, dispone di funzionalità in tempo reale, inclusi chat, web, e-mail, scudi P2P e rete, scansione di avvio e bloccanti comportamentale. Come Avira AntiVir, è anche luce sulla memoria. 
AVG Antivirus Free Edition è anche tra i più popolari del suo genere.Esso è ampiamente utilizzato da parte del pubblico a causa di un suo tasso di rilevamento buona. Tuttavia, negli ultimi tempi, molti analisti dicono che in qualche modo, questo software è stato lasciato dagli altri grazie alla sua velocità di scansione lenta. E diventata anche significativamente enorme utilizzando una gran parte delle risorse del sistema. 
Microsoft Security Essentials (MSE) ha tassi di rilevazione eccezionale, soprattutto di rootkit. E apprezzato per la sua accuratezza e poco rilevamento positivo falso. Si è anche ottimo per rimuovere qualsiasi malware esistente e si occupa di una piccola porzione di memoria.E facile da usare e molto adatto per principianti e utenti medi. Con l'interazione dell'utente minima, aggiornamenti automatici e rimozione di minacce, non è necessario per l'utente a fare cose manualmente con questo software. Come AVG, Microsoft Security Essentials ha velocità di scansione lenta e richiede molto tempo per mettere in quarantena un malware. Inoltre, una copia autentica di Windows è necessaria per MSE essere installato a causa di convalida necessario per il sistema operativo (OS).
RISING Antivirus Free Edition inoltre protegge il computer da tutti i tipi di virus come Trojan e worm, rootkit e moltissimi altri programmi maligni.Il software controlla anche i file, e-mail, controllo dell'applicazione e dischi esterni.Ha anche una scansione incorporato e autoprotezione.Tecnologia di difesa attiva con antivirus brevettato, pulizia e aggiornamento funzionalità rendono il sistema degni di nota.E facile da usare.Basta installare, dimenticare che è l? e fare qualunque cosa che dovete fare.