Korgo worm virus Patch#
Korgo worm virus software#
Korgo worm virus Pc#
Korgo worm virus windows#

For example, a generic exploit-blocking signature could have been sent out after the April 13, 2004, announcement of the LSASS vulnerability in Microsoft Windows. In a similar fashion, many high-profile vulnerabilities seen over the past two years could have been protected with this technology. Had a signature been deployed shortly after a vulnerability was announced, the MS-SQL Slammer worm would have been blocked from its inception.

Korgo worm virus Pc#

A firewall on the corporate server or desktop PC then would filter all incoming and outgoing packets with this signature.

Korgo worm virus software#

Security software vendors could send signatures to firewalls in the form of virus definition updates. A generic exploit-blocking signature for this vulnerability would have blocked the threat. To exploit the vulnerability, an attacker simply had to send a packet that was 61 bytes or longer, and whose first byte had a value of 4, to network Port 1434 on an unpatched machine running SQL Server. The need for this technology was established in July 2002, when MicrosoftВ announced a vulnerability in Microsoft SQL Server database. The goal of generic exploit blocking is to characterize a system vulnerability and then build a signature that can detect and block all potential attacks against that vulnerability. This difference is significant because it lets security researchers deliver protection before an exploit has been posted or released in the form of a new virus or worm. Generic exploit blocking analyzes the targeted vulnerable software rather than the attacking viruses. Like traditional signatures, generic exploit blocking requires analysis to determine characteristics and create fingerprints. Generic exploit blocking differs from traditional signature-based protection technologies. When incorporated into desktop and network firewalls, the technology prevents infections rather than responding to them. The problem with signature-based anti-virus protection is that if the threat spreads faster than a signature can be produced, computers get infected.ДЄ new security technology called generic exploit blocking shields systems from malicious threats before they appear. Today, anti-virus researchers typically have to rapidly obtain the new virusВ or worm, analyze it and produce a signature to send to users.

Korgo worm virus Patch#

The Symantec Security Response team advises computer uses to apply the Microsoft LSASS Buffer Overrun Vulnerability patch as soon as possible.When a software vulnerability is disclosed, virus writers rush to release a virus or worm that exploits the vulnerability before customers can apply a patch that fixes it. 'This backdoor functionality could result in a loss of confidential data and may also compromise security settings,' said Huger. Senior director of Symantec Security Response, Alfred Huger, said the worm is another example of why users need to be diligent in using security patches.

Korgo worm virus windows#

Symantec announced the presence of the worm in April of this year, which they say attempts to circulate itself using a Microsoft Windows vulnerability.ДЄccording to Symantec, computers using un-patched Windows 2000 and Windows XP operating systems are susceptible to the worm's attack, which opens a back door to the Microsoft system through TCP ports 1. However, according to Symantec the threat is still categorised as 'well-contained'. The security response team at Symantec said it had increased the threat level warning on worm from a level two to a level three. Anti-virus company Symantec has upgraded the threat warning on the worm affecting Microsoft applications, following an increase in submissions over the last 12 hours.