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Rising News | Latest Edition | Top Threats |

  Virus Threat: Trojan.Kirvo.B  
  ..........................................................................................................................................................................................................................  
  Type: Trojan Horse  
       
  Virus Description: Trojan.Kirvo.B is a Trojan that sends a malicious URL to MSN Messenger contacts.  
       
  Infection Length: 20,480 bytes  
       
  Systems Affected: Windows 2000, Windows 95, Windows 98, Windows CE, Windows NT, Windows Server 2003, Windows XP  
       
  Technical Details: When Trojan.Kirvo.B is executed, it performs the following actions:
  1. Sends the following message and URL to all MSN Messenger contacts on the compromised computer:

    thats life day for you and the rest of days on you hehe
    [http://]KillingTime.dynu.net/[REMOVED]Images.php?pic=0017&sec=badluck

  2. Downloads a variant of Backdoor.Sdbot onto the compromised computer, if the recipient clicks the URL.
 
       
  Recommendations:
  • 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.
 
       
  Virus Tool Name: Rising Antivirus 2006 ( KB)  
       
  Virus Tool Description: LIVE Update your current Rising Antivirus Software  
       
       
  Updated Date: 25/07/2006 4:44:23 PM  
       

 

 

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