Antivirus or anti-virus software is used to prevent, detect, and remove malware, including but not limited to computer viruses, computer worm, trojan horses, spyware and adware.

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120 views

Would this be plausible for a metamorphic virus? Not repeatedly infecting same system

Would this be plausible for a metamorphic virus? When a new generation (for lack of better word) is created it would hard code a random file name, that would be checked to see if the system was ...
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2answers
230 views

AV inserting email header logic

I want to write a small PHP emailing class to be able to send HTML emails. My problem is that in the receiving email an antivirus will insert a header which sometimes simply breaks the entire email. ...
3
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1answer
205 views

Does anti-virus/security software protect against NTFS ADS?

I know that NTFS has features called ADS which may be used to hide malware. So does antivirus/security software, such as Norton 360, protect against this type of attack?
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4answers
4k views

Is it ok to use computer while scanning for viruses?

Should one refrain from using the computer while a virus scan is in progress? Are there certain things that are ok and others not? For example is it ok to use a web browser while a scan is in ...
3
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1answer
11k views

does Avast SafeZone actually make a difference?

SafeZone is a feature in Avast Anti-Virus which is like a virtual machine that only has a web broswer. The benifit of this is that it can't be infected with spyware and isn't suseptible to keylogers. ...
2
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1answer
152 views

How are AV scanners protecting against encrypted (PGPd) malicious code?

As a user of PGP I worry about receiving a virus that was previous encrypted with my public key, which anybody can get by querying many PGP key servers. What prevents an attacker to target a PGP user ...
3
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3answers
478 views

How do polymorphic/metamorphic/self-encrypting/self-changing file infectors know if they have infected a file or not?

If a virus rewrites itself for each infection how would it know if it has infected a file or not? If it keeps infecting the same file soon the whole file structure will be corrupt. For example how ...
2
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2answers
179 views

How do viruses know if they have already infected a system or done something?

I know some viruses repeat the same actions over and over again with no break, thus grinding the network to a halt. But others "take a break" from there repetitive actions. For example Nimda ...
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2answers
300 views

Antivirus for Thesis

I just want to ask if you know any book or technical papers and theses regarding computer viruses and anti-viruses. 'cause we're having a hard time looking for updated books regarding ...
3
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2answers
376 views

Why does Antivirus Softwares have an Issue with EXE Packers

Im trying to pack an Executable using an Exe Packer like UPX.I packed and checked the File with VirusTotal.com.Here some 9 Antivirus Products say its a Virus actually its a harmless exe.I think the AV ...
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2answers
153 views

Which MTA don't have antivirus check for outbound emails?

I need to test whether MTA has antivirus check for inbound emails. To check this I need to send email with e.g. EICAR testfile from another MTA to this one. However, Gmail, Yahoo and other well-known ...
2
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3answers
1k views

Do I have a virus on my hosted site?

A few weeks ago I hired an outsourcer from India to build for me a very simple PHP site. I bought PHP hosting and a domain name, and I gave him all the credentials together with the specification of ...
3
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5answers
2k views

What's a free recommended anti-spyware program for Windows? [closed]

Its been years since I installed an anti-spyware program. Keyloggers and other nasties might have gotten installed and so I'm looking for a program to flush them out. I used to use Spybot-S&D, but ...
5
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1answer
329 views

How antivirus companies create virus defnitions for new outbreaks

This question quite amazes me. I dont understand how antivirus companies get info about the latest viruses. have they installed some kind of filters to monitor the internet traffic ? Or they are ...
0
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1answer
74 views

Are there privacy implications with ESET Web Protection?

I got the most recent ESET Cyber Security Beta for Mac. It offers a mode called “Web Protection” and “Email Protection”. The documentation don’t really explain what these two modes does, and I’m ...
4
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2answers
240 views

Remotely fingerprint AV software on LAN machines?

Does anyone know of a method to fingerprint machines in the LAN and find out what kind of AV software is installed?
4
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3answers
2k views

How to scan USB drive with clamav on Linux

Is there a way to scan the entire drive including auto-run and all partitions, including the master boot record (MBR)?
5
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4answers
443 views

How bad is a source code leak for an antivirus?

I was reading that Symantec suffered a source code leak and I was wondering how bad this is for a anti-virus product. Do these products rely heavily upon "(in)Security Through Obscurity" or does it ...
5
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3answers
383 views

How do anti-virus & anti-malware programs protect themselves?

I would assume that A/V products would need to employ the same kinds of techniques used by the software they are trying to cleanse to ensure that they can continue to run in such hostile environments. ...
13
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4answers
966 views

How is a worm different from a virus?

In spite of various online articles, I'm a bit unclear on the distinction between a "worm" and a "virus". Two related questions-- Is there a useful and clear distinction here or no? If so, what is ...
5
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2answers
1k views

Antivirus for scanning anonymous file uploads

Since I have no experience with AV solutions on Unix-like environments, I would need help with suggestions on something that can be suitable for scanning files that are uploaded by anonymous users ...
3
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2answers
121 views

When using a recovery disk, like AVGs boot-able CD, to scan for viruses, malware etc… what are the limitations?

What I like about about the boot-able CD concept, is it can connect to the Internet and get updates, however I'm not clear how effective they are at really finding things that are heuristic? How do ...
6
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3answers
317 views

Do any antivirus products use “canary files” to detect rootkits?

Recently, I've learned how some rootkits are able to hide certain files, services, etc. from programs in the kernel or user modes. This got me wondering: Are there any antivirus programs, or other ...
3
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4answers
316 views

What is the purpose of EICAR?

For as long as can remember, EICAR has been used to test for the presence of Antivirus systems in email, the file system, or other places. Sometimes the AV solution is so far out of date, that its ...
4
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5answers
167 views

Should there be an anti-virus used on client provided files?

This is based on Stack Exchange podcast # 25. I really don't understand why there would need to be virus checking on uploaded files. It would generally be a bad idea to execute anything which was ...
11
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3answers
32k views

How serious is InstallIQ?

Background: Recently I've seen hits for InstallIQ a "potentially unwanted application" from ESET. From what I can find it seems like this is an installer wrapper that asks people to install other ...
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1answer
259 views

Why does Microsoft Security Essentials remove Chrome in some situations?

According to Google, Microsoft Security Essentials is currently detecting some versions of the Chrome browser as malware. Could someone have hacked Google and put a virus into some Chrome updates? ...
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8answers
629 views

Battling Malware without spending money

Our environment consists of about 80 users running Windows 7. Previous to me showing up as a full time IT employee, the company had contracted an outsource IT solution. As part of their set up, they ...
3
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1answer
385 views

Is there a viable open source antivirus for OS/X?

I am interested in finding an antivirus program for the Mac, but not one from Symantec, because I don't trust them. I wonder if perhaps there is an open source solution for antivirus for OS/X? Or ...
61
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15answers
3k views

How to write an email regarding IT Security that will be read, and not ignored by the end user?

I've observed that several of our users are ignoring messages sent from IT Security managers, and also the system generated "You just sent a virus" notifications. The problem seems to be among people ...
7
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2answers
299 views

Are there any independent organizations doing (publicly available) IT security research?

When looking up security risks on the net I find that all research being cited (if any is cited) always seems to come from the Anti-Malware companies. (just e.g., this article cites F-secure, AVG and ...
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11answers
3k views

Do we really need an antivirus? if yes, what for? And how do they activate and enter in a PC?

I've been reading on various sites how PC get infected by viruses and I got: Email attachments (but of course, only if I get an exe and open or execute something, right?) Don't update windows ...
4
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1answer
229 views

What is behaviourism and heuristic control in anti-virus software and how does it work?

In one local magazine I read interview with Adrian Porcescu, who is a technical consultant that works for Kaspersky Lab. Among other things, he says their anti-virus uses behaviourism and heuristic ...
19
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6answers
14k views

How to scan a PDF for malware?

Can anyone suggest an automated tool to scan a PDF file to determine whether it might contain malware or other "bad stuff"? Or, alternatively, assigns a risk level to the PDF? I would prefer a free ...
2
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2answers
494 views

Force AV Scan of USB drive vs. File-Access Scan

I have been evaluating MS Forefront Endpoint Protection 2010 vs. Kasperskey 2010. One of the major differences in features seems to be that Kasperskey gives the option to force the full scan of a USB ...
3
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2answers
314 views

What criteria do you use for evaluating Client-Side / Endpoint security products?

What features are important to you in client-side AV and Firewall products? Who benefits from these features? Managment, the end user, helpdesk. Are there features that are being 'sold' by the ...
15
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8answers
1k views

Are signature based antivirus or antimalware effective?

Are signature based antivirus or antimalware solutions effective? Has the battle been lost against the ever increasing amount of malware, particularly rootkits, that are in the wild?
11
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5answers
221 views

What are the areas to focus on to protect users and devices?

What are the areas or technologies to focus on to protect users and devices? Are patching, antivirus and firewalls still the main areas? How do you defend against attacks against vulnerabilities ...
7
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1answer
384 views

What steps do you take to keep both your computer and internet browsing secure?

I am thinking about your browser setup, antivirus protection, vpn, browsing best-practices and so on.
6
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2answers
789 views

Antivirus, antimalware and antispyware software. What is the difference?

What is the difference between antivirus, antimalware and antispyware software? If any clear distinction can be defined.
18
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2answers
3k views

How does a crypter for bypassing antivirus detection work?

I am talking about crypters used to encrypt files like viruses and keyloggers for the sole purpose of bypassing antivirus detection. How do they work?
12
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4answers
5k views

Does a webserver need an antivirus software installed?

In what cases does a webserver need an antivirus software installed? When it is not required? If it is required sometimes, what should be considered when choosing the right one to install? (In my ...