Block Scanner is a virus or commonly called as rogue security application distributed on computers by means of Internet. Users may get infected with Block Scanner by visiting a malicious websites that can easily drop and install it on computers without users consent. Once inside the computer, Block Scanner will pop-up warning messages about security risks and advise to remove it by purchasing the registered version of the program. It will also disguise as a BSoD with title BlockScanner – Online Protection.
Other payload it can carry out may bring software malfunctions on the affected system. BlockScanner may end security related process that will make antivirus programs unusable. BlockScanner will also modify Internet Explorer settings to redirect it to unwanted websites and block access to security websites. To remove this malware, follow the Block Scanner removal tool using a legitimate programs.
What are the Symptoms of Block Scanner Infection?
It will mimic the Blue Screen of Death (BSoD) and pretend as BlockScanner – Online Protection
It will modify Windows Registry and add the following entries:
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “BlockScanner”
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “xwd3.tmp.exe”
- HKEY_CURRENT_USER\Software\BlockScanner
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\BlockScanner
- HKEY_LOCAL_MACHINE\SOFTWARE\BlockScanner
The threat will drop the following malicious files:
- %Documents and Settings%\All Users\Desktop\BlockScanner.lnk
- %Documents and Settings%\All Users\Start Menu\Programs\BlockScanner\1 BlockScanner.lnk
- %Documents and Settings%\All Users\Start Menu\Programs\BlockScanner\2 Homepage.lnk
- %Documents and Settings%\All Users\Start Menu\Programs\BlockScanner\3 Uninstall.lnk
- %Program Files%\BlockScanner Software\BlockScanner\BlockScanner.exe
- %Program Files%\BlockScanner Software\BlockScanner\uninstall.exe
- %WINDOWS%\1125not-a-zir9s298.cpl
- %WINDOWS%\11457z9rm5e.cpl
- %WINDOWS%\11748acztool1ef4.exe
- %WINDOWS%\system32\1258zt5oj331.exe
- %WINDOWS%\system32\125z7spamb45712.bin
- %WINDOWS%\system32\12547s5y1z7.dll
- %Temp%\xwd3.tmp.exe
How to Remove BlockScanner Manually
1. Restart your computer in SafeMode
– After Power-On the computer, just before Windows start, press F8
– From the selections, Select SafeMode
2. Remove Registry entries that the threat added. You MUST BACKUP YOUR REGISTRY FIRST.
– Click Start > Run
– Type in the field, regedit
– Navigate and look for the registry entries mentioned above and delete if necessary
3. Delete malicious files that the threat added:
– Base on the given location above, browse and delete the file. It can be in the form of [random].exe, [random].dll and [random].cpl
– If no location is given, click Start>Search> and search for the files.
– If cannot be deleted, press Ctrl+Alt+Del to access Task Manager, see if the file is running in the process. If it is, select the file and click End Process. Perform file delete again.
4. Scan computer with Antivirus Program
– Update antivirus program
– Scan computer and delete all detected threats.
