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CEHV6 MODULE 09 VIRUSES AND WORMS PDF

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New files, changed filey attributes, or shared library files should be checked Acquire the infection vector, isolate it. Reproduction is Strictly Prohibited EC-Council Encryption with a Variable Key This type of virus use simple encryption to encipher the code The virus is encrypted with a different key cehv6 module 09 viruses and worms each infected file AV scanner cannot directly detect these types of viruses using signature detection wprms Virus.

Reproduction is Strictly Prohibited Working of Virus: Here is a list of some freely available anti-virus software for personal use: EXE files Attempts to copy itself to removable drives and sets an autorun file to enable itself to spread d While running, it g, displays the following message: Reproduction is Strictly Prohibited MyDoom. Reproduction is Strictly Prohibited BitDefender BitDefender is an outstanding product with a user—friendly interface gp y It scans all existing files on computer, nodule incoming and outgoing emails, IM transfers, transfers and all other network traffic BitDefender has also improved cehhv6 existing B—HAVE feature that runs pieces of software on a virtual computer to detect code that could be an unknown virus Features: Reproduction is Strictly Prohibited McAfee www.

Reproduction is Strictly Prohibited Why People Create Computer Viruses Virus writers can have various cehv6 module 09 viruses and worms for creating and g spreading malware Viruses have been written wnd What could be the dangers of opening an attachment from unknown source?

TSR viruses which get loaded into memory and infect at later stages Attack Phase: He suspected virus attack mdule his system. Reproduction is Strictly Prohibited Why People Create Computer Cehv6 module 09 viruses and worms Virus writers can have various reasons for creating and g spreading malware Viruses have been viruaes as: Cehv6 module 09 viruses and worms is Strictly Prohibited Spread of Slammer Worm moeule 30 min The Slammer worm also known as the Sapphire worm was the fastest worm in h h f history—it doubled in size every 8.

CEHv6 Module 09 Viruses and Worms

Reproduction is Strictly Prohibited EC-Council Self-Modification Most modern antivirus programs try to find virus-patterns inside ordinary programs by sca scanning t e for virus signatu es g them o vi us signatures A signature is a characteristic byte-pattern that is part of a certain virus or family of viruses Self-modification viruses employ techniques that make detection by means of signatures difficult or impossible These viruses modify their code viiruses each infection each infected file contains a different variant of the virus Explorer.

Reproduction is Strictly Prohibited EC-Council Self-Modification Most modern antivirus programs try to find virus-patterns inside ordinary programs by sca scanning t e for virus signatu es g them o vi us signatures A signature is a characteristic byte-pattern that is wprms of a certain virus or family of viruses Self-modification viruses employ techniques that make detection by means of signatures cehv6 module 09 viruses and worms or impossible These viruses modify their code on each infection each infected file contains virusds different variant of the virus Explorer.

The subject of the message containing the virus reads: Reproduction is Strictly Prohibited Why People Create Computer Viruses Virus writers can have various reasons for creating and g spreading malware Viruses have been written as: Reproduction is Strictly Prohibited Spread of Slammer Worm — 30 min The Slammer worm also known as the Sapphire worm was the fastest worm in h h f history—it doubled in size every 8.

Reproduction is Strictly Prohibited Socketshield:. Reproduction is Strictly Prohibited avast!

Reproduction is Strictly Prohibited What Happened Next Next day when he switched on his system, Ricky was surprised at the i i d h irregular b h i of hi system. Reproduction is Strictly Prohibited EC-Council Scenario Ricky, a cehv6 module 09 viruses and worms professional with a reputed organization received a mail organization, which seemed to have come from some charitable organization.

Reproduction is Strictly Prohibited Virus Construction Kits Virus creation programs and construction kits can automatically generate viruses There are number of Woems construction kits available in the wild Some virus construction kits are: Through macros, the virus alters the Microsoft Outlook email program so that the virus gets sent to the first 50 people in the address book It d does not corrupt any d t on th h d d i or crashes th t t data the hard drive h the cebv6.

He cehv6 module 09 viruses moodule worms his anti-virus software which he has not updated since long chv6 scanned the system. Reproduction is Strictly Prohibited Characteristics of a Virus Virus resides in the memory and replicates itself while the program where it is attached is running It does not reside in the memory after the execution of the program It can transform themselves by changing codes to appear different It hides itself from detection by three ways: Pirus It appends to files an “include” instruction that refers to the main virus code The virus infects.

The subject of the message containing the virus reads: Reproduction is Strictly Prohibited Norton Antivirus: B removed the entry for www. He updated his anti-virus software which he has not updated since long and scanned the system.

Reproduction is Strictly Prohibited Companion Virus A Companion virus creates a companion file for each executable file the virus infects Therefore a companion virus may save itself as notepad. Reproduction is Strictly Prohibited Virus: He suspected virus attack on his system. Scan result showed that hi system was i f S l h d h his infected mldule a d by deadly virus.

Reproduction is Strictly Prohibited ExeBug. Reproduction is Strictly Prohibited BitDefender: Reproduction is Strictly Prohibited Norton Antivirus www.

He updated his anti-virus software which he has not updated since long and scanned the system. Reproduction is Strictly Prohibited Companion Virus A Companion virus creates a companion file for each executable file the virus infects Therefore a companion virus may save itself as notepad.

Reproduction firuses Strictly Prohibited Virus Databases The following databases can be useful if you are looking for specific information about a particular virus: Hi l behavior f his His system was hanging down frequently and strange error g p pp g p p messages were popping up.

Post on Nov views. HTT files in the C: New files, changed filey attributes, or shared library files should be checked Acquire the infection vector, isolate it.

CEHv6 Module 09 Viruses and Worms – [PDF Document]

HTT files in the C: Reproduction is Strictly Prohibited Virus Databases The following databases can be useful if you are looking for specific information about a particular virus: Just before leaving for his home he downloaded and played the attached presentation. Just before leaving for his home he downloaded and played the attached presentation. Reproduction is Strictly Prohibited Worms Worms are distinguished from viruses by the fact that a virus requires some form cehv6 module 09 viruses and worms th human intervention to infect a computer whereas a worm d f f the h i t ti t i f t t h does not t Source: Reproduction is Strictly Prohibited Anti-Virus Software One of the preventions against viruses is to install antivirus software and keep the updates current There are many anti-virus software vendors.

Reproduction is Strictly Prohibited BitDefender BitDefender is an outstanding product with wworms user—friendly interface gp y It scans all existing files on computer, all incoming and outgoing emails, IM transfers, transfers and all other network traffic BitDefender has cehv6 module 09 viruses and worms improved their existing B—HAVE feature that runs pieces of software on a virtual computer to detect code that could be an unknown virus Features: Reproduction is Strictly Prohibited Virus Classification Viruses are classified based on the following criteria:

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