Malware is any software application which subverts the will of the legitimate owner of a computer, by means of force or subterfuge, with or without personal or monetary gain on the part of the creator.

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15
votes
3answers
704 views

Are official browser add-ons really safe?

Almost any browser addon/extension that I install on my Chrome or Firefox (be it Firebug, RESTClient, ...) warns me, saying: It [the add-on] can: Access your data on all website Access ...
-1
votes
1answer
69 views

Unusual image may contain hidden data

I have received an image from a friend. This is the image. is there any way to detect any anomalies in this image. Thanks
0
votes
2answers
141 views

Getting detailed information about an infected website

I have a set of bad URL's. I want to know the nature of infections affecting these URL's . Running an online scanner such as VirusTotal gives me some basic information from various engines about the ...
1
vote
1answer
189 views

How can this be possible? (malware autoinstall on chrome)

I have a website, using an ads service (qadabra). Yesterday some users reported me that the ads service sometimes redirects to a site containing malware. the url is this: PLEASE DON'T OPEN IT, IT ...
2
votes
1answer
87 views

Windows: Any method to enforce user confirmation before the browser opens a URL requested by an external desktop app?

A robust outgoing firewall will protect against desktop applications directly connecting to the internet without your permission. However, as the browser is a generally authorized application for ...
-1
votes
3answers
218 views

Are virtual keyboards themselves secure? [closed]

It is advised to use on-screen keyboards on, for example, banking operations (especially if the site doesn't have a virtual keyboard) to beat keyloggers (at least minimize the risk). There is some ...
0
votes
1answer
278 views

Potential problem in public Maven repository

Problem This morning I found that, what I thought was one of our proprietary artifacts, had been published to a public repository: http://repo.grails.org/grails/simple/codehaus-cache/com/ If you ...
0
votes
2answers
111 views

Why does host's antivirus detect guest's malware?

I'm analyzing some malicious files on a VM and I'm noticing that every time I open a file, the host's antivirus detects it. Why does this happen? Is the malicious content escaping to the host?
2
votes
2answers
188 views

How big is the threat of Desktop Linux malware? [closed]

Most malware one hears about on the news seems to fit into one of two categories: Windows viruses, trojans, rootkits etc. Linux server "worms", backdoors and similar How big is the threat of ...
16
votes
5answers
951 views

Why would a virus writer bother to check to see if a machine is infected before infecting it?

I was looking at the tripartite structure of a virus, and it seems to check to see if a computer is infected before infecting it with the virus. Would this be an attempt to use files that are already ...
12
votes
3answers
35k 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 ...
3
votes
3answers
690 views

How to check if URL/ IP belongs to a zeus bot

I have a set of URL's which might be Zeus hosts / C&C servers since my security appliance says so. Is there a way to check if these really belong to Zeus?
15
votes
5answers
2k views

Becoming a malware analyst?

So, I'm currently 16 and am considering a career in IT when I finish school. The thing that has intrigued me the most while growing up is malware. I've come across it so often and have often had to ...
17
votes
4answers
3k views

Malwares source repositories. Where?

As the best way to learn is to read the code, do you know where I can find malware/virus/whatever source code to read?
6
votes
4answers
656 views

Has my network/computer been breached?

I'm not sure if this is the right site to ask, so I apologise if it isn't, but here goes. A while ago I started noticing some odd behaviour. My Gmail account was compromised, it seemed, and I had to ...
0
votes
3answers
142 views

What are the pros and cons of using live CDs vs VMs for malware analysis?

I'm planning on doing some malware research for a research project, and I was wondering what would be a better option for keeping my system safe from viruses accidentally infecting it. I'm only ...
1
vote
1answer
61 views

ensuring that compiled (and signed) packages don't contain malicious code

I would like to understand how the packaged Linux distributions (i.e. Debian) ensure that their packages don't contain any malicious code. I know that packages are signed, and that I can download the ...
1
vote
1answer
73 views

Malware threats from other mounted hard drives

I am going to install Linux on an external hard drive and my internal hard drive is currently running Windows. When I boot to my Linux and I still have my windows hard drive mounted is it possible for ...
-2
votes
1answer
82 views

does any botnet/malware traffic use ssh or anything else other than TCP/IP? [closed]

if i sniff all traffic leaving my router, if botnet traffic is present will it be IP traffic or does any malware use other protcols such as SSH, FTP, TFTP, etc?? do antivirus software programs ...
3
votes
2answers
155 views

What patterns does a signature based anti-virus look for?

I'm working on a uni project where I will attempt to create a malware that uses some form of genetic algorithm to "evolve" itself out of being recognized by a signature based AV software. For this I ...
0
votes
2answers
222 views

Is anti virus software supposed to clean up registry entries made by malware?

I just cleaned up a virus infection on my computer (running windows) by running an Anti Virus Scan. The malicious executable files are now deleted. However, the registry entries made by it remain. ...
0
votes
1answer
61 views

How to prevent malware to know when removable devices are plugged in

The question is clear, I'm a programmer and wrote a software to disinfect the USB devices when they got the malware which hides the files and creates a shortcut of the virus . Using this soft we can ...
4
votes
4answers
5k views

How can I detect backdoors?

I have a machine running Mac OS X and I suspect there may be a backdoor installed. I know that I could take it to a professional security firm for analysis, or nuke it from orbit, but I'm interested ...
9
votes
4answers
516 views

What would happen if one of the popular Linux repositories is hacked?

Even though most people consider downloading your Linux software from you own distribution's repositories as safe, thinking about the scenario where a repository gets hacked sounds thrilling. What ...
7
votes
5answers
1k views

Malware code added when site viewed externally

Please see second followup at the bottom! (Now with added real malicious code! ...ish) Prompted by this question, I've noticed that my university's student charity organisation has an interesting ...
1
vote
2answers
351 views

Can I get a malware on Windows without administrative rights?

I'm a Linux user and I installed Windows recently, I need it for some software. I don't want to use any anti-malware programs, I don't plan on giving administrative rights to applications I don't ...
1
vote
1answer
63 views

How can I view the contents of a web page without running malicious code? [closed]

I received a strange email which has some strange URL in it. I would like to know what is "behind" the url, but without the risk of running anything malicious. How can see the contents of the URL, ...
2
votes
1answer
279 views

My home PC was hacked and accessed my bank! Advice on next steps? [duplicate]

I recently setup a new Win8.1 PC while still working on my main development PC so it did not have all of the security tools that I usually install, e.g. malwarebytes, adaware, etc. Since it takes me a ...
1
vote
2answers
277 views

USB Flash drives and data theft: x355

Can somebody have stolen files and data from my desktop PC just by inserting a USB Flash drive in my computer, without dragging files over to the Flash drive?
15
votes
2answers
571 views

Could once infected machine be ever trusted again?

I'm just about to switch to a new SSD drive, so I figured it's a good occasion for a really, really fresh start. I reconsidered every installed piece of software, uninstalled lots of crap ...
2
votes
2answers
671 views

What is the ultimate goal of hacking a webserver? [closed]

Recently I noticed a lot of traffic generated by automated bots that were checking for vulnerabilities in my web server. They were mainly looking for ways to hack into plesk/wordpress which I don't ...
-3
votes
1answer
96 views

Meaning of webpage link containing www23 [closed]

I have come across a number of websites which include links such as www32.example.com and also www2.example.com. Why is there a number in the www part of the link? Are these sites not legitimate? ...
2
votes
1answer
87 views

very bad malware that masquerades as spyware?

Has there ever been a known case where a machine acquired spyware like a browser toolbar, or plugin but that spyware also deployed more dangerous malware like a trojan, botnet, or worm?
2
votes
1answer
651 views

How does Ram Scraper work?

I heard that during Christmas a lot of customer data was stolen using malware attack called Ram Scrapers. What exactly is a Ram Scraper?How would one infect a machine with it?What information can you ...
0
votes
1answer
147 views

Java Drive By & Stub - Explanation [closed]

I have been trying to make some extensions for chrome lately to block some unwanted stuff. I have also been searching for quite some time to find what a JDB does.So , the applet downloads a file , ...
1
vote
5answers
259 views

“Safe” public WiFi [duplicate]

Is there any danger of any of my computer's files being read or changed (mainly - infected by malware) in the following scenario (I'm using Windows 7): I have file sharing turned off (in "advanced ...
-4
votes
1answer
281 views

How to prevent malware infection and file accessibility through a wireless router? [duplicate]

The answer suggested in the 'duplicate' is about a different issue. But since my original wording of the question seems to have not been clear - here's a second attempt: Is there any danger of any of ...
2
votes
2answers
274 views

Analyzing Network Anomalies for Malicious events

For a network security project we are listing to our network traffic of about 50-60 hosts. We aim at identifying malicious event within our network traffic by identifying network anomalies. Our main ...
0
votes
3answers
3k views

How to check if computer is controlled remotely

My laptop has windows 7 installed. One Saturday night I couldn't fall asleep and was just lying in bed. Then suddenly at around 2 in the morning I heard the fan of the laptop start up and lights on ...
3
votes
1answer
704 views

Hiding process from Task Manager [closed]

What technique is used to hide a process from Task Manager? I'm currently researching ways I can do this in C++. Is this process called hooking? ...
1
vote
1answer
230 views

Can signature-based Antivirus detect encrypted malware? [duplicate]

How effective signature-based Antivirus is, in detecting encrypted malware?
3
votes
1answer
82 views

opening random extensions with notepad

I get files with random extensions sometimes in order to bypass corporate firewalls. Usually I would just ask the other party what it is that I just received. Other times I get curious and open the ...
8
votes
6answers
10k 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 ...
1
vote
1answer
246 views

Detecting Malware in the android App [closed]

I've been given an APK file, and before re-distributing to the "market" I want to make sure the given android app does not contain the malware. How can I do that ? Business use case is similar like : ...
1
vote
3answers
2k views

What is “download-new.com”?

This strange site came up as the second result in a google search for itunes. http://download-new.com/apple-itunes/ (Although the url in the result read itunes.download-new.com.) Embarrassingly, I ...
0
votes
1answer
43 views

Photo Attachment's Feature For Some Mail Servers [duplicate]

You already know google started new service which is related to gmail. http://gmailblog.blogspot.com/2013/11/attachments-in-gmail-now-with-power-of.html When we send new mail to friends.If it ...
1
vote
3answers
191 views

What is the safest way to copy a file from an untrusted system?

Scenario: There are two computers running GNU/Linux, U and T. U is untrusted and T is trusted. A non-executable file F (which may however have been infected with malware) resides on U. (For ...
0
votes
1answer
151 views

One or two machines in a network have been compromised. How to proceed [duplicate]

Edit This post has been marked as duplicate. While I have read the referenced thread I see some differences in the descibed situation. My scenario below is a non-server home network with both machines ...
7
votes
1answer
168 views

Why Apache runs as unprivileged user?

Apache Web server as a security measure relinquishes its system privileges and runs as a normal unprivileged user before accepting clients over a networks. My Question is How this measure prevents ...
1
vote
1answer
637 views

Hacked site - encrypted code

Couple days ago I gave noticed that almost all php files on my server are infected with some encrypted code and in almost every file is different. Here is the example from one of the files: ...