Mostrando entradas con la etiqueta rootkits. Mostrar todas las entradas
Mostrando entradas con la etiqueta rootkits. Mostrar todas las entradas

viernes, 2 de mayo de 2014

Malware

Malware, also called badware , malicious code , malware, or malicious software , is a type of software that aims to infiltrate or damage a computer system or information without the consent of the owner. The term malware is used by computer professionals to mean a variety of software hostile,  intrusive or annoying.The term computer virus is often applied incorrectly to refer to all types of malware, including true viruses.

Software is considered malware based on the effects, designed by the creator, cause a computer. The term malware includes viruses, worms, trojan horses, most rootkits, scareware, spyware, intrusive adware, crimeware and other malicious and unwanted software.

Malware is not the same as defective software; the latter contains dangerous bugs, but not intentionally.

Interim results from Symantec published in 2008 suggested that "the rate at which are circulated malicious code and other unwanted programs may have surpassed that of legitimate applications. According to a report by F-Secure, much malware was produced in 2007 as in the previous 20 years combined.
Software is considered malware based on the effects , designed by the creator , cause a computer. The term malware includes viruses , worms , trojan horses, most rootkits , scareware , spyware, intrusive adware, crimeware and other malicious softwares and indeseables. Malware is not the same as defective software ; the latter contains dangerous bugs , but not intentionally .
 Interim results from Symantec published in 2008 suggested that the rate at which are circulated malicious code and other unwanted programs may have surpassed that of the legitimate application. According to a report by F -Secure , was produced both malware in 2007 as in the previous 20 years together. 

Hidden malware
For a malware to complete its objectives, it is essential to remain hidden from the user. For example, if an experienced user detects a malicious program, end the process and erase the malware before it could complete its objectives. Concealment can also help get the malware was first installed on the computer.

Some types of hidden malware

Backdoors 
A backdoor is a method to circumvent the usual procedures of authentication when connecting to a computer. Once the system has been compromised (by one of the above methods or otherwise), you can install a back door to allow easier remote access in the future. The rear doors can also be installed prior to malicious software to allow entry of the attackers.


Drive-by Downloads 
Google has found that one in 10 web pages that have been analyzed in depth may contain so-called drive-by downloads, which are sites that install spyware or codes that give information on computers without the user noticing.


Rootkits 

Techniques known as rootkits modify the operating system of a computer to allow the malware to remain hidden from the user. For example, rootkits prevent a malicious process is visible in the list of system processes or that its files are visible in the file browser. Such modifications get hide any indication that the computer is infected by a malware. Originally, a rootkit was a set of tools installed by an attacker on a Unix system where the attacker had gained administrator access (root access). Currently, the term is used more generally to refer to concealment routines in a malicious program.

Trojans
The term Trojan is usually used to designate a malware that allows remote administration of a computer, surreptitiously and without the consent of the owner, by an unauthorized user . This type of malware is a hybrid between a Trojan and backdoor Trojan not considering the definition .

Broadly, the Trojans are malicious programs that are disguised as something innocuous or attraction that invites the user to run a malicious software hiding . That software can have an immediate effect and can lead many undesirable consequences , for example , delete the user's files or installing more undesirable or malicious programs .

The types of trojans are backdoors, banker , botnets, dialers , droppers , downloaders , keylogger , password stealer , proxy.17 18

The Trojans known as droppers19 20 are used to start a worm propagation injecting within the local network of a user.

One of the most common ways to distribute trojans spyware is attached by a desirable software downloaded from the Internet . When the user installs the software expected , the spyware is put also . Spyware authors who attempt to act lawfully may include a terms of use , which vaguely explained the behavior of spyware, that users accept without reading or not understanding.