What is Antimalware Doctor?
The Malwarebytes research team has determined that Antimalware Doctor 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 Antimalware Doctor?
This is how the main screen of the rogue application looks:
You will find this icon in your task-bar:
And see these warnings:
How did Antimalware Doctor get on my computer?
Rogue programs use different methods for spreading themselves. This particular one was spread using an exploit on an infected site.
How do I remove Antimalware Doctor?
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 Antimalware Doctor?
- No, Malwarebytes' Anti-Malware removes Antimalware Doctor 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 Antimalware Doctor 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:
\AntiMalwareDoctor\5D5A25FDE56E54277147B4637E2EC65B\dbf70702.exe O4 - HKCU\..\Run: [dbf70702.exe] \AntiMalwareDoctor\5D5A25FDE56E54277147B4637E2EC65B\dbf70702.exe
Note: the file and foldername will be random.
Alterations made by the installer:
Registry =============== [HKEY_CURRENT_USER\Software\Antimalware Doctor Inc\Antimalware Doctor] "affid"="'70702'" "virus_signatures"="'60016'" "database_version"="'246'" "install_time"="'3/22/2010 2:01:37 PM'" "datarlA"="'KRoAGVdOQx4PARElG00dAQ=='" "datarl2"="'KRoAGVdOQwQVExE3BAYNQRsl'" "datarl1"="'KRoAGVdOQx4PARElG00dAQ=='" [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\Antimalware Doctor] "NoRepair"="1" "NoModify"="1" "InstallLocation"="\AntiMalwareDoctor\5D5A25FDE56E54277147B4637E2EC65B\" "UninstallString"="\AntiMalwareDoctor\5D5A25FDE56E54277147B4637E2EC65B\dbf70702.exe /uninstall" "DisplayName"="Antimalware Doctor" "DisplayIcon"="\AntiMalwareDoctor\5D5A25FDE56E54277147B4637E2EC65B\dbf70702.exe,0" [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run] "dbf70702.exe"="\AntiMalwareDoctor\5D5A25FDE56E54277147B4637E2EC65B\dbf70702.exe"
Malwarebytes' Anti-Malware log:
Malwarebytes' Anti-Malware 1.44 Database version: 3899 Windows 5.1.2600 Service Pack 2 Internet Explorer 6.0.2900.2180 3/22/2010 2:15:53 PM mbam-log-2010-03-22 (14-15-53).txt Scan type: Quick Scan Objects scanned: 106182 Time elapsed: 2 minute(s), 33 second(s) Memory Processes Infected: 1 Memory Modules Infected: 0 Registry Keys Infected: 2 Registry Values Infected: 1 Registry Data Items Infected: 0 Folders Infected: 0 Files Infected: 1 Memory Processes Infected: \AntiMalwareDoctor\5D5A25FDE56E54277147B4637E2EC65B\dbf70702.exe (Rogue.AntimalwareDoctor) -> Unloaded process successfully. Memory Modules Infected: (No malicious items detected) Registry Keys Infected: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Uninstall\Antimalware Doctor (Rogue.AntimalwareDoctor) -> Quarantined and deleted successfully. HKEY_CURRENT_USER\Software\Antimalware Doctor Inc (Rogue.AntimalwareDoctor) -> Quarantined and deleted successfully. Registry Values Infected: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\dbf70702.exe (Rogue.AntimalwareDoctor) -> Quarantined and deleted successfully. Registry Data Items Infected: (No malicious items detected) Folders Infected: (No malicious items detected) Files Infected: \AntiMalwareDoctor\5D5A25FDE56E54277147B4637E2EC65B\dbf70702.exe (Rogue.AntimalwareDoctor) -> 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