Tagged Questions

A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes.

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8
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3answers
2k views

Am I protected from USB autorun malware on Windows 7?

As far as I know, the autorun.inf problem (the possibility of automatically executing code when a USB stick is plugged in) was solved through Windows Updates for XP, and on 7 it is no longer possible ...
3
votes
4answers
484 views

How do I ensure that my computer is 100% worm-free?

Ok say I have a brand new laptop that was is brand new. Is it true to say that as long as I keep the bluetooth turned off, and I am not connected to the internet, and only copy files that are 100% ...
20
votes
4answers
33k views

How to inject executable, malicious code into PDF, JPEG, MP3, etc.?

I wanted to know if its generally possible to inject executable code into files like PDFs or JPEGs etc., or must there be some kind of security hole in the application? And if so, how would one do ...
6
votes
2answers
247 views

How does the predator network prevent outside control by an attacker?

I read several articles saying some of the command and control fleet for the US robotic attack planes may have been infected with a virus. Does this command and control system communicate with the ...
6
votes
2answers
238 views

What implications does IPv6 have for internet worms and script kiddies?

Though IPv6 is not here yet it one day we will all lose our familiar IPv4 addresses and be communicating over the internet solely with IPv6 addresses. What interests me is the implications this has ...
5
votes
2answers
2k views

Virus detection with Process Explorer

Can Process Explorer ( Windows apparently) detect a virus? Is it even possible?
11
votes
7answers
2k views

Can viruses actually inject their code in other processes?

Can a virus really inject its own code into a process so it stays on your computer permantly? The only way to actually remove it is to reinstall your OS. My question is how can it do that without ...
5
votes
2answers
457 views

What is a Flash drive by download?

I've seen many people saying how some sites can infect your computer without actually clicking anything. They said that it was a "Flash Drive By" and it would use flash to download a file of any kind. ...
6
votes
3answers
291 views

How safe are copies of Firefox that are on various Mozilla mirror sites?

If I end up downloading a .dmg or .exe (depending on OS) installer from some mirror site, how can I be sure that a virus or trojan or spyware has not been added? I don't see any mechanism for ...
7
votes
4answers
12k views

Security issues with allowing Dropbox installations on client PC's in our organisation

Does anyone know if there is any good reasons not to allow Dropbox installations on our client PC's? All the PC's have antivirus installed and running. I know it is an additional attack vector to ...
6
votes
2answers
3k views

Viruses on video cards?

Steve Gibson of Security Now fame claims that viruses can attack a video card and infect it. I assume that he means it can infect the Video BIOS. However I'm skeptical. BIOSes are so numerous and ...
6
votes
2answers
385 views

Statistics on purposes of viruses/malware

Are there any resources that analyze the purpose or goal or the major viruses/malware out in the wild today? For example, what percentage are used to construct botnets (for DDoS or something else)? ...
18
votes
7answers
1k views

Why do malware creators use such clever technologies for such silly purposes?

Some days ago I got infected by a malware, probably something new and very clever, as it went in unstopped and no scanning tool was able to detect it afterwards (see this question). It was a ...
8
votes
6answers
743 views

What is preventing the widespread common use of MAC-type systems?

Overall question what is preventing the uptake of MAC systems such as SELinux/AppArmor in corporate and desktop computing environments? Why don't you think it isn't already widespread? I do not ...
12
votes
5answers
824 views

Detection and analysis of unknown malware

Suppose I have a binary which is suspicious. How can I determine whether it is malicious, and if it is, reverse-engineer how it works and what it does? For example, maybe using static analysis? Are ...
32
votes
2answers
9k views

What malicious things can happen when clicking on links in email?

I've received a spam from one of my friends (well I'm sure he didn't send it). so there's this link, and i'd thought what exactly would be the implications of clicking the link (i've not clicked it ...
2
votes
2answers
238 views

What steps can I take to identify what type of compromise of my computer has occured

I got involved in a strange scenario today :-) . Some 'UDPAgent.exe' file/worm/virus was trying to access my collegue's system and the antivirum program was showing that this particular thing is ...
1
vote
2answers
393 views

Where can I find some “real time” discussion forums for security issues? [closed]

The place where I work was hit by the new Qakbot variant (3rd generation) a couple of days ago and it has been brutal. Unfortunately a lot of the documentation out there is from the 1st iteration of ...
2
votes
1answer
427 views

Can anyone give me more info on this sketchy url I recently visited, is it an attack site?

My girlfriend was browsing images on google when suddenly her browser redirected to this url: defender-iies.co.cc/scan3/167 The site seemed to be posing as an anti virus, saying your computer is at ...
8
votes
4answers
827 views

Is disabling auto-run enough to protect against malicious code from removable media automatically infecting a machine?

If I block auto-run on a windows machine, is this enough to protect it from malicious code (assuming I don't run any files manually)? Or are there known vulnerabilities that may cause infection?
8
votes
6answers
11k views

How can I prevent viruses/malware from infecting my flash drive?

I've a pen drive that I carry to the college lab . It seems all the systems in lab is infected. I need to be able to write to the drive, so I can't simply write protect it. Everytime I insert a ...
5
votes
3answers
296 views

Some good resources on viruses/worms?

I am searching good info on sophisticated viruses/worms. One example would be STUXNET and the very good analysis made by folks from Symantec. Any ideas?
6
votes
3answers
523 views

Malware nomenclature

If there a generally agreed upon naming convention for types of malware/virus? For example, are there agreed upon terms for virus, trojan, worm and the like? If one exists could someone explain it or ...
16
votes
4answers
3k views

What is the corrupted image vulnerability? How does it work?

What exactly happens when someone injects malicious binary code into an image file (on Windows)? How is that done?
19
votes
2answers
4k 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?
7
votes
2answers
898 views

Recently had a virus, can I use backed up files on clean system?

I had to reinstall my OS (windows) recently due to a virus. I backed up my source files onto a flash drive. How can I get to those files without problems? I know flash drives can have nasty things in ...