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[Metallica]

Content is republished with permission from Malwarebytes.

What is Antivirus Protection Trial?

The Malwarebytes research team has determined that Antivirus Protection Trial 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 Protection Trial?

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 Protection Trial get on my computer?

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

How do I remove Antivirus Protection Trial?

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

• Please download Malwarebytes' Anti-Malware to your desktop.
• 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
  • 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, select Perform quick scan, then click Scan.
• When the scan is complete, click OK, then Show Results to view the results.
• Be sure that everything is checked, and click Remove Selected. Reboot your computer if prompted.
• When completed, a log will open in Notepad. The rogue application should now be gone.

Is there anything else I need to do to get rid of Antivirus Protection Trial?

• No, Malwarebytes' Anti-Malware removes Antivirus Protection Trial 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 Protection Trial 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:\DOCUME~1\{username}\LOCALS~1\Temp\ltpmrmtse\nmdgobtmksm.exe

O4 - HKCU\..\Run: [telqmnsk] C:\DOCUME~1\{username}\LOCALS~1\Temp\ltpmrmtse\nmdgobtmksm.exe

Note: the folder- and file are random.

Alterations made by the installer:

  File System
  ===============
    Adds the folder C:\Documents and Settings\{username}\Local Settings\Temp\ltpmrmtse
      Adds the file nmdgobtmksm.exe"="11:05 14/04/11 405504 bytes

  Registry
  ===============
    [HKEY_CURRENT_USER\Software\sdnasdiiftf]
      "ready"="1"
      "id"="'83.1'"
      "knkd"="1"
    [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download]
      "RunInvalidSignatures"="1"
      "CheckExeSignatures"="'no'"
    [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\PhishingFilter]
      "Enabled"="0"
      "EnabledV8"="0"
    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
      "ProxyOverride"="'<local>'"
      "ProxyServer"="'http=127.0.0.1:30510'"
      "ProxyEnable"="1"
    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations]
      "LowRiskFileTypes"="'.exe'"
    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments]
      "SaveZoneInformation"="1"
    [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
      "telqmnsk"="'C:\DOCUME~1\METALL~1\LOCALS~1\Temp\ltpmrmtse\nmdgobtmksm.exe'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.50.1.1100
www.malwarebytes.org

Database version: 6439

Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

4/25/2011 1:27:49 PM
mbam-log-2011-04-25 (13-27-49).txt

Scan type: Quick scan
Objects scanned: 125585
Time elapsed: 5 minute(s), 10 second(s)

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

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CURRENT_USER\Software\sdnasdiiftf (Malware.Trace) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\telqmnsk (Trojan.FakeAlertRP.Gen) -> Value: telqmnsk -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyServer (PUM.Bad.Proxy) -> Value: ProxyServer -> Quarantined and deleted successfully.

Folders Infected:
(No malicious items detected)

Files Infected:
c:\Documents and Settings\{username}\Local Settings\Temp\ltpmrmtse\nmdgobtmksm.exe (Trojan.FakeAlertRP.Gen) -> Delete on reboot.
c:\documents and settings\{username}\Desktop\62.exe (Trojan.FakeAlertRP.Gen) -> Quarantined and deleted successfully.
c:\documents and settings\{username}\Desktop\gktuqcrmksm.exe (Trojan.FakeAlertRP.Gen) -> 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.