brontok virus

Recommendation (clean and Protects from Brontok Virus)
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.

Recommendation For Clean or removal Brontok -rontokbro-win32-w32-worm....

Disable System Restore (Windows Me/XP).
Update the virus definitions or Download New Anti Virus Software or find Anti Virus
Run a full system scan and delete all the files detected. or run Brontok Cleaner Premium on clean device (usb Flash Drives Drives)
Use the Security Response "Tool to reset shell\open\command registry subkeys."
Delete any values added to the registry.
Delete the scheduled task.

Blended Threat Blended threats combine the characteristics of viruses, worms, Trojan Horses, and malicious code with server and Internet vulnerabilities to initiate, transmit, and spread an attack. By using multiple methods and techniques, blended threats can rapidly spread and cause widespread damage. Characteristics of blended threats include:
Causes harm: Launches a Denial of Service (DoS) attack at a target IP address, defaces Web servers, or plants Trojan Horse programs for later execution.
Propagates by multiple methods: Scans for vulnerabilities to compromise a system, such as embedding code in HTML files on a server, infecting visitors to a compromised Web site, or sending unauthorized email from compromised servers with a worm attachment.
Attacks from multiple points: Injects malicious code into the .exe files on a system, raises the privilege level of the guest account, creates world read and writeable network shares, makes numerous registry changes, and adds script code into HTML files.
Spreads without human intervention: Continuously scans the Internet for vulnerable servers to attack.
Exploits vulnerabilities: Takes advantage of known vulnerabilities, such as buffer overflows, HTTP input validation vulnerabilities, and known default passwords to gain unauthorized administrative access. Effective protection from blended threats requires a comprehensive security solution that contains multiple layers of defense and response mechanisms.

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