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A database anti-virus scanners use to identify viruses. Basically a big list of hashes that uniquely identify a virus.
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∙ 13y ago
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What scanning detects malware by comparing a file content with known malware signatures in a signature database?
Um, signature.
What term refers to a database of virus signatures and other data to help identify malware?
An antivirus database? I have heard them called definitions instead of signatures, and they are loaded into an antivirus program in order to scan your computer.
What are ways for malware authors to get around antivirus engines?
Some methods they use are: Stealth mode - the virus intercepts requests from the anti-virus program and returns the information the anti-virus program would expect from a non-infected program. Self-modification or mutation - the program changes its code slightly with each infection to make it harder for anti-virus software to create a "signature" for the virus Encryption of the payload - this may obfuscate the actual virus, especially if a different encryption key is used each time. The code still has to have a decrypting function attached to allow the virus to unpack and execute. Polymorphic viruses - this is sort of a combination of the encryption and mutation tactics. The virus payload is encrypted and the decrypting function modifies itsself with each infection to make it very tough to create a signature for the virus.
Disadvantage of computerised database?
- Sometimes doesn't save you work. - They can break down. - It can crash. - It can shut down. - Power outage. - A hacker. - It stops working. - Virus. - Cost.
What is meant by database software?
The database software can best be thought of as the core boss of your computer. It will organize and store all of your programs, which trickle down to music storage, email storage, and document storage. This will be the first system that your virus control should check when looking for new spam and viruses.
What does a computer virus signature do?
Computer Virus Signature are updates that has been downloaded mainly by an Antivirus program. These Virus Signature are patterns and behaviors of a virus. If your Antivirus detected a file and it's pattern and behavior the same as the virus signature, it will automatically list it as virus.
Nod virus signature database is out of date?
Open the NOD control panel. Underneath the different modules (AMON, DMON...) there is an Update section. You'll have to have your log in I think
What is a specific pattern of virus code?
Virus Signature
Why might antivirus and anti spyware software not detect malicious software?
Some anti virus and anti spyware software will not be able to detect more malicious virus and Trojan horse infections because they do not contain a signature database which is capable of detecting various infections.By constantly updating your anti virus or anti spyware application with the latest signature database updates you will enable your security tool to have a better chance of detecting more difficult to find infections which it can then quarantine or remove.
Is a virus signature a portion of virus code that is unique to a particular computer virus?
virus signatures
What scanning detects malware by comparing a file content with known malware signatures in a signature database?
Um, signature.
Why might antivirus and antispyware software not detect malicious software?
Antivirus and antispyware software might not detect malware because the virus database signature has not been updated. Malware is released constantly and it takes time to analyze it and add its signature to the database of an antivirus.There can be a lot of reasons why. Your software (definition files) might not be up to date. Also, its possible that the company your using does not have the malicious software in their "banned" list yet. I don't know what provider you use for your protection, but typically with virus and antispyware software you get what you pay for generally speaking.
What does it mean When your internal antivirus database is out of date?
That the virus definition of your anti-virus software need to be updated.
What are the steps to make a virus signature file?
drop and drag a made virus into the file and then e-mail it
Does brain pop give a computer virus?
No. It has a completely secure database which cannot be corrupted. It is completely virus free.
What is the sequence of characters used to identify a virus known as?
Signature / Identifier: this is like the virus passport number. A sequence of characters (numbers, letters, etc.) that identify the virus
Why do anti viruses sometimes lie?
Anti-virus programs don't 'lie' as such - but they cannot find EVERY virus, as new ones are being written daily. An anti-virus program is only as good as its virus database.
