1.DownloadGoogle recommend safer browser Web browser, For more safe , Stay Secure on the Web and stay far away virus,Download URL http://www.oral8.net/firefox/firefox.htm
2. Temporarily Disable System Restore (Windows Me/XP).
3. Update the virus definitions. Reboot computer in SafeMode
4. Run a full system scan and clean/delete all W32.Wowinzi.A infected files and Delete/Modify any values added to the registry.
Navigate to the subkey and delete the valuesas following:
The worm may be downloaded from compromised Web sites.
Once executed, the worm copies itself as the following files:
%System%\windows.txt
%Windir%\Tasks\0x01xx8p.exe
The worm then creates the following files:
%Windir%\Tasks\SysFile.brk (copy of spoolsv.exe)
%Windir%\Tasks\spoolsv.ext (copy of spoolsv.exe)
It then modifies the following files:
%System%\dllcache\spoolsv.exe
%System%\spoolsv.exe
The following threats may then be dropped and executed on the compromised computer:
The worm then copies itself to all fixed and removable drives as the following file: %DriveLetter%\MSDOS.bat
The worm also creates the following file on all fixed and removable drives so that it executes whenever the drive is accessed: %DriveLetter%\autorun.inf
It deletes the following file: %System%\verclsid.exe
The worm creates the following registry entry, so that it runs every time Windows starts: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"Shell" = "%System%\Rundll32.exe %System%\shell32.dll Control_RunDLL %Temp%\dat[RANDOM 4 DIGIT HEX NUMBER].tmp"
The worm then modifies the following registry entries:
It contacts the following URL to retrieve configuration information: [http://]winzipices.cn/confi[REMOVED]
The worm may then perform any of the following actions based on information in the configuration file:
Download and execute a file
Gather email addresses from files
Attempt to infect executable files
Copy itself to removable and network drives
Attempts to spread through network shares
Inject malicious code into local network user Web pages and into Web pages on the compromised computer
It then downloads and executes a copy of itself as the following executable: [http://]winzipices.cn/[REMOVED]
Currently, the worm will post confidential information to the following remote location: [http://]winzipices.cn/tong/post[REMOVED]
The worm opens a back door and may attempt to contact the following remote location on TCP port 1800: 61.134.37.15
Recommendations
Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":
Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, telnet, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch updates.
If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services (for example, all Windows-based computers should have the current Service Pack installed.). Additionally, please apply any security updates that are mentioned in this writeup, in trusted Security Bulletins, or on vendor Web sites.
Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files.
Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media.
Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
5. Exit registry editor .
6.delete the IE temp files or you may download ATF temp files cleaner to run a full cleaning.and restart the computer.
8. Now you may remove W32.Wowinzi.A successfully.
