Jump to content

Removal instructions for AV Security 2012

Recommended Posts

  • Staff

What is AV Security 2012?

The Malwarebytes research team has determined that AV Security 2012 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 AV Security 2012?

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


You will find these icons on your desktop and in your taskbar:


And see these warnings:




How did AV Security 2012 get on my computer?

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

How do I remove AV Security 2012?

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.
  • Download the mbam-setup.exe to your desktop.
  • Now make sure extensions are shown. To do this, please look here
  • Then rename the mbam-setup.exe: mbamsetupexe.png to iexplore.exe
  • Then launch iexplore.exe in order to install Malwarebytes' Anti-malware
  • 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 iexplore.exe
  • Now doubleclick iexplore.exe to launch Malwarebytes' Anti-malware.
  • Click the "Update" tab and click the "Check For updates" button.
  • Once the program has loaded and updates were downloaded, 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 AV Security 2012?

  • The rogue replaces your hosts file, so you may have to restore the old one. You can find third-party hosts file alternatives at hpHosts or at mvps.org or you can simply reset the default hosts file as outlined here by Microsoft.

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 AV Security 2012 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:\WINDOWS\system32\AV Security 2012v121.exe

O1 - Hosts: google.com
O1 - Hosts: yahoo.com
O1 - Hosts: bing.com
O1 - Hosts: facebook.com
O4 - HKLM\..\Run: [GujQA5ymZy8234A] C:\WINDOWS\system32\AV Security 2012v121.exe

Note: the startup name is random

Alterations made by the installer:

File System
In the existing folder C:\Documents and Settings\{username}\Application Data
Adds the file ldr.ini"="10:18 12/11/11 1211 bytes
Adds the folder C:\Documents and Settings\{username}\Application Data\lrfbI2evJwcHaGp
Adds the folder C:\Documents and Settings\{username}\Application Data\s3rfbK2dU2dUwYq
Adds the file AV Security 2012.ico"="10:18 12/11/11 12878 bytes
Adds the folder C:\Documents and Settings\{username}\Application Data\SlEDVikS6jA5m4n
In the existing folder C:\Documents and Settings\{username}\Desktop
Adds the file AV Security 2012.lnk"="10:18 12/11/11 1764 bytes
Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\AV Security 2012
Adds the file AV Security 2012.lnk"="10:18 12/11/11 1776 bytes
In the existing folder C:\WINDOWS\system32
Adds the file AV Security 2012v121.exe"="10:18 12/11/11 2458624 bytes

"GujQA5ymZy8234A"="'C:\WINDOWS\system32\AV Security 2012v121.exe'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware

Database version: 8145

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

11/12/2011 10:34:44 AM
mbam-log-2011-11-12 (10-34-44).txt

Scan type: Quick scan
Objects scanned: 140447
Time elapsed: 1 minute(s), 9 second(s)

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

Memory Processes Infected:
c:\WINDOWS\system32\av security 2012v121.exe (Trojan.FakeMS1) -> 1140 -> Unloaded process successfully.

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GujQA5ymZy8234A (Trojan.FakeMS1) -> Value: GujQA5ymZy8234A -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
c:\WINDOWS\system32\av security 2012v121.exe (Trojan.FakeMS1) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\application data\ldr.ini (Malware.Trace) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\Desktop\av security 2012.lnk (Rogue.AVSecurity2012) -> 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.

Link to post
Share on other sites

  • Recently Browsing   0 members

    • No registered users viewing this page.
Back to top
  • Create New...

Important Information

This site uses cookies - We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.