싼야민공- Phomthong's LiveTV 3G+ Online

phomthong on livestream.com. Broadcast Live Free

Virus Computer Killer Chat

Sunday, 10 January 2010

computer worm virus

computer worm virus
A computer worm is a self-replicating computer program. It uses a network to send copies of itself to other nodes (computers on the network) and it may do so without any user intervention. Unlike a virus, it does not need to attach itself to an existing program. Worms almost always cause at least some harm to the network, if only by consuming bandwidth, whereas viruses almost always corrupt or modify files on a targeted computer.

Protecting against dangerous computer worms
Worms spread by exploiting vulnerabilities in operating systems. All vendors supply regular security updates[6] (see "Patch Tuesday"), and if these are installed to a machine then the majority of worms are unable to spread to it. If a vendor acknowledges a vulnerability, but has yet to release a security update to patch it, a zero day exploit is possible. However, these are relatively rare.

Users need to be wary of opening unexpected email,[7] and should not run attached files or programs, or visit web sites that are linked to such emails. However, as with the ILOVEYOU worm, and with the increased growth and efficiency of phishing attacks, it remains possible to trick the end-user into running a malicious code.

Anti-virus and anti-spyware software are helpful, but must be kept up-to-date with new pattern files at least every few days. The use of a firewall is also recommended.

In the April-June, 2008, issue of IEEE Transactions on Dependable and Secure Computing, computer scientists describe a potential new way to combat internet worms. The researchers discovered how to contain the kind of worm that scans the Internet randomly, looking for vulnerable hosts to infect. They found that the key is for software to monitor the number of scans that machines on a network sends out. When a machine starts sending out too many scans, it is a sign that it has been infected, allowing administrators to take it off line and check it for viruses
Refer to http://en.wikipedia.org/wiki/Computer_worm

No comments:

Post a Comment

Malware Fix New Update

Latest Virus Descriptions

Latest Virus News

BitDefender - Latest Threats

Sophos latest virus and spyware detection

ESET Threat Center

Trend Micro - Malware Top10

Avira - Latest Threats Descriptions

CA Security Advisor Virus Alerts

AVG | Virus Database Updates

AVG | Virus Database Updates

Free Download Antivirus & Safety Software

US-CERT Current Activity

Clam AntiVirus

NORMAN:Virus warnings

ข่าวไอทีและโปรแกรมสแกนไวรัส

Top Ten Security Privacy Reviews