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[Metallica]

Content is republished with permission from Malwarebytes.

What is Antivirus Clean 2011?

The Malwarebytes research team has determined that Antivirus Clean 2011 is a fake anti-malware application. These so-called "rogues" use intentional false positives to convince users that their systems have been compromised. Then they try to sell you their software, claiming it will remove these threats. In extreme cases the false threats are actually the very trojans that advertise or even directly install the rogue. You are strongly advised to follow our removal instructions below.

How do I know if I am infected with Antivirus Clean 2011?

This is how the main screen of the rogue application looks:



You will find this icon in your taskbar:



And see these warnings:







How did Antivirus Clean 2011 get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was installed by a fake online scanner.

How do I remove Antivirus Clean 2011?

Our program Malwarebytes' Anti-Malware can detect and remove this rogue application.

• Please download Malwarebytes' Anti-Malware from here
  If you are unable to do this from the infected computer directly, transfer the file from another computer.
• Double-click mbam-setup.exe and follow the prompts to install the program.
• At the end, be sure a check-mark is placed next to the following:
  
  
  • Update Malwarebytes' Anti-Malware
• Then click Finish.
• If an update is found, it will download and install the latest version.
• Now make sure extensions are shown. To do this, please look here
• Once Malwarebytes' Anti-Malware is installed, navigate to your Program Files\Malwarebytes' Anti-Malware folder and locate the mbam.exe in there.
  
• Rename it to explorer.exe
  
• Now doubleclick explorer.exe to launch Malwarebytes' Anti-malware.
• Once the program has loaded, select "Perform Quick Scan", then click Scan.
• The scan may take some time to finish, so please be patient.
• When the scan is complete, click OK, then Show Results to view the results.
• Make sure that everything is checked, and click Remove Selected.
• When disinfection is completed, a log will open in Notepad and you may be prompted to Restart, so please allow MBAM to restart.
• The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.

Is there anything else I need to do to get rid of Antivirus Clean 2011?

• No, Malwarebytes' Anti-Malware removes Antivirus Clean 2011 completely.

How would the full version of Malwarebytes' Anti-Malware help protect me?

We hope our application has helped you eradicate this malicious software. If your current security solution let this infection through, you might please consider purchasing the FULL version of Malwarebytes' Anti-Malware for additional protection.

As you can see below the full version of Malwarebytes' Anti-Malware would have protected you against the Antivirus Clean 2011 rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

Technical details for experts

Signs in a HijackThis log:

C:\Program Files\Antivirus Clean 2011\uH2mQ1pG3aP8.exe
C:\Program Files\Antivirus Clean 2011\avservice.exe

O4 - HKLM\..\Run: [AntivirusClean] C:\Program Files\Antivirus Clean 2011\uH2mQ1pG3aP8.exe
O4 - HKLM\..\Run: [avservice] C:\Program Files\Antivirus Clean 2011\avservice.exe

Alterations made by the installer:

  File System
  ===============
    Adds the folder C:\Program Files\Antivirus Clean 2011
      Adds the file uH2mQ1pG3aP8.exe"="12:25 13/04/11 1062912 bytes
      Adds the file avservice.exe"="12:25 13/04/11 157184 bytes

  Registry
  ===============
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
      "AntivirusClean"="'C:\Program Files\Antivirus Clean 2011\uH2mQ1pG3aP8.exe'"
      "avservice"="'C:\Program Files\Antivirus Clean 2011\avservice.exe'"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbam.exe]
      "Debugger"="'C:\disable0.exe'"
    [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\swdoctor.exe]
      "Debugger"="'C:\disable0.exe'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 6420

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

4/22/2011 5:30:53 PM
mbam-log-2011-04-22 (17-30-53).txt

Scan type: Quick scan
Objects scanned: 131988
Time elapsed: 7 minute(s), 58 second(s)

Memory Processes Infected: 2
Memory Modules Infected: 0
Registry Keys Infected: 1
Registry Values Infected: 2
Folders Infected: 1
Files Infected: 3

Memory Processes Infected:
c:\program files\antivirus clean 2011\uh2mq1pg3ap8.exe (Trojan.Agent) -> 1712 -> Unloaded process successfully.
c:\program files\antivirus clean 2011\avservice.exe (Trojan.Agent) -> 564 -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mbam.exe (Security.Hijack) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AntivirusClean (Trojan.Agent) -> Value: AntivirusClean -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\avservice (Trojan.Agent) -> Value: avservice -> Quarantined and deleted successfully.

Folders Infected:
c:\program files\antivirus clean 2011 (Rogue.AntiVirusClean2011) -> Quarantined and deleted successfully.

Files Infected:
c:\program files\antivirus clean 2011\uh2mq1pg3ap8.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\program files\antivirus clean 2011\avservice.exe (Trojan.Agent) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\Desktop\antivirusclean2011setup.exe (Trojan.FakeAlert) -> Quarantined and deleted successfully.

As mentioned before the full version of Malwarebytes' Anti-Malware could have protected your computer against this threat.
We use different ways of protecting your computer(s):

• Dynamically Blocks Malware Sites & Servers
• Malware Execution Prevention

Save yourself the hassle and get protected.