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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367 views

Malware via power outlet

This is perhaps a very dumb question, but as I have no knowledge nor experience of IT security I have no option but to ask here. Is it possible to get malware onto your computer or smartphone by ...
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1answer
303 views

Is this code harmful? Why?

Code: http://pastebin.com/kJ8ZGP82 That code gets retrived from http://ui.sidepage.co for every HTTP page I visit (not HTTPS) and load it into the body tag of the page. Is it harmful in any way? ...
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3answers
444 views

Security/Malware implications of storing data in a BLOB as opposed to the file system

From a programming perspective, there has long been a debate over whether to store files in a BLOB or Binary field in a database, or on the file system. The debate always seems to center around ...
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5answers
1k views

How can I find the source of traffic allegedly originating from my IP address?

I have a problem that has been going on for at least 6 weeks. I have Time Warner for my Internet provider and some websites hosted at GoDaddy. From what GoDaddy tells me the reason I can not view ...
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2answers
537 views

Why do I get AV alerts when browsing a web page?

I'm using the latest version of Firefox and Windows is up to date. When I was browsing a webpage and clicked a link the browser displayed "connection has been reset" and AVAST poped-up saying "Alert!" ...
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2answers
167 views

Potentially unsafe files on second hard drive, how to get my files back?

I have my files on a second hard drive (disconnected for now). This drive was connected to a system infected with Virus:W32/Virut. I have formatted my main hard drive and reinstalled Windows XP. Now I ...
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2answers
516 views

Example of malware that spreads via USB? [closed]

I'm messing with Mandiant Redline on Windows Server 2012 in a VM and I wanted to download a sample virus that spreads via USB and modify it to attack Mandiant Redline - I've never written malware ...
3
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2answers
140 views

DPAPI and malware

I'm considering using the Windows DPAPI to protect an ECDH key I use to encrypt some data in a local database in a Windows desktop application. I'm new to DPAPI, but its my understanding that DPAPI ...
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5answers
1k views

How can I know if my PC is getting infected?

I have installed an antivirus, but as no antivirus is perfect, what can I do to diagnose if my PC is getting infected? For example, keeping a close eye on what programs and tasks run when I turn my ...
3
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2answers
98 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 ...
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4answers
10k views

Scanning for files than have been encrypted by CryptoLocker

I am just asking in case someone has already done the analysis. A customer has a large set of network drives that were mapped to a CryptoLocker infected machine. The infection itself has been treated. ...
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1answer
194 views

Should I trust and play every embedded video on Facebook?

Regarding to trusted sites like YouTube, should I trust other videos when embedded to Facebook, usually, when user shares a link a thumbnail image will be created and previewed, then, we need only to ...
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1answer
88 views

Recovering from malware in the registry

I'm an intern who writes malware samples to later be tested. A rather basic piece I wrote in C++ kills explorer.exe, taskmgr.exe and repeats this every second. I used a bit of code to add my ...
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3answers
183 views

What are some ways to steal a password/PIN using this system?

http://cups.cs.cmu.edu/soups/2007/posters/p147_lim.pdf Essentially uses an on-screen keypad that does not show the complete keypad numbers at a time. The image is refreshed at the rate of the ...
3
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2answers
575 views

How do browser injections work?

I've heard many times that malware like Zeus, SpyEye and Citadel are able to do browser injections to steal credit card data. How do they do it? how do browser "injections" work? How are they able to ...
3
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1answer
324 views

Why does broad based malware use XOR obfuscation?

As per title... The malware can easily be de-obfuscated if it was obfuscated using common and known XOR techniques. Why don't malware authors use any other method that make it much harder to ...
3
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2answers
258 views

How content-type:image can lead to infected JAR file?

Symantec published a news about a malvertising campaign targeting IE users with Java exploits (already known vulnerabilities). At some point they explain that the users are redirected on malicious ...
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4answers
10k views

How to prevent my website from getting malware injection attacks?

My website was banned as a malware website by Google. When I checked the code, I found out that some code injected many files on my server. I cleaned everything manually, edited all files on my server ...
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1answer
178 views

How can I assess the trust worthiness of a browser add-on?

Having learned a bit more about what add-ons/extensions can do in Firefox, I want to minimize my risk and use some safer mechanism to download videos (FLV in particular) for later viewing. ...
3
votes
1answer
100 views

Drive-by downloads

I am aware of the problem of drive-by downloads, which happens when one visits a malicious site and a malware is downloaded to the PC. I want to ask that when such a program is downloaded, how does it ...
3
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1answer
40 views

OS reinstallation security contribution

For an average user (doing on-line payments, etc.), would it be useful to periodically conduct a OS re-installation of his computer to improve security? How often would that be and how much extra ...
3
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1answer
145 views

What is the security purpose behind the “enable editing” of MS Word?

Whenever I open MS Word documents from my email, they open in "Protected View" with edit options disabled by default. As per my understanding, the hyperlinks used in the main document would be linked ...
3
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2answers
588 views

How does DNS Changer malware detection work?

This malware directs your computer to use DNS servers under control of the badguys. These DNS servers were taken over by the FBI. They were replaced with clean ones, to prevent service disruption, but ...
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2answers
174 views

What is multi-path malware?

I would like to know, in malware analysis, what is meant by "multi-path execution". I read this when I encounter the words in malware detection literature related to Control Flow Graph (CFG).
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1answer
353 views

quizrace.com - Malware or just a game?

This quizrace.com quiz game is spreading like a virus all over internet forums and sites like 4cahn, minecraft etc (just google for it) - because it requires you to invite 3 friends to continue beyond ...
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2answers
79 views

Can viewing an email message in Outlook 2013 install malware on my computer?

I routinely get spam messages which state "Your account for [Insert game here] has been flagged. If you don't click this link/send us this info/go to this website in the next 72 hours, your account ...
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1answer
574 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? ...
3
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1answer
75 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 ...
3
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1answer
247 views

what is the difference between virus, worm, trojan and other malware [closed]

Looking through the questions in IT security, I found out that there is no answer which cover this question in depth. I am aware of the answer and just hope to see something detailed about: main ...
3
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1answer
186 views

“WICKED” entries in the default nginx vhost's logs

I have a small VPS running nginx, and for a long time now (several months, since I rented it) it has been collecting weird entries in its default (listen 80 default;) vhost's logs: 109.x.x.121 - - ...
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2answers
409 views

Can a malware jump from a virtual to the physical machine? [duplicate]

Possible Duplicate: How secure are virtual machines really? False sense of security? I found out that malware authors check if the hard drive volume name, or network card MAC matches ...
3
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1answer
295 views

Find malware in browser extensions

How can I check if an extension/addon consist of malware code? Is it easy to detect if it collects sensitive data (like spyware), logging keystrokes and so on? Can AV recognize malware extension as ...
3
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1answer
182 views

Recover file using Java RanNum Gen + Key

EDIT: Here is some more background. I am basically trying to reproduce this the method outlined here I have been able to hit everything up until the paragraph regarding the decrypting of the data file ...
3
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1answer
506 views

What is known about the sirefef/zeroaccess malware/botnet?

There appears to be an increase in p2p communication among botnets that has been attributed to the sirefef/zeroaccess malware botnet. What is known on this particular threat?
3
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1answer
77 views

How to identify and analyze malware that checks for security tools before running?

I've been reading about the ZeroAccess and looking into some bot's code source* and I found this piece of code which checks if filemon is running in the infected computer before running the bot. ...
2
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5answers
792 views

How will microvirtualisation change the security field, if at all?

Will this reduce the number of exploitable vulnerabilities in common operating systems? Will the only path in be to exploit the VM itself? Marketing blurb from Bromium's website below. ... ...
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3answers
250 views

Should I trust URL based on file extension like this: http://example.com/image.jpg

I created a slideshow and mentioned that user must not trust URL based on file extension, however, I got some claims against that, because URL's like this should be safe: ...
2
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2answers
538 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 ...
2
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1answer
163 views

What anti-keylogging programs can you use when using a public PCs

Are there anti-keylogging programs that can keep you safe while you are using a public PC terminal? Do they exist and what are these? I like to know that I am safe when entering data on a public PC ...
2
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3answers
422 views

does switching to linux remove existing computer virus

if you change from a malware/spyware infected windows setup to a linux setup will infections migrate to linux if they were on the computer? (when you are hacked/infected is it the op system that is ...
2
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3answers
430 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?
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2answers
616 views

Is this a valid Windows update page

In my chrome browser if I google for Windows Update the first hit is windowsupdate.microsoft.com/‎ When I click on it I am redirected to ...
2
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3answers
201 views

How to test for presense of antivirus?

I want to test that when user uploads file, then it goes through up-to-date and properly configured antivirus. I think that to test for it I need some malware that is likely to be detected (it doesn't ...
2
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2answers
128 views

Security Practices by Employees in a Corporate Environment

Consider the following situation : 1. Somehow my boss's system got infected with a malware ( He visited one of the Java exploits website). 2. He sends a PDF document containing the requirement ...
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3answers
336 views

How hard it would be to infect a system with malware through a portable web browser

If I use a portable web browser on a USB device like Google Chrome Portable how hard it would be to get infected by a malware/virus in the system to which the USB device is connected? Google Chrome ...
2
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4answers
410 views

How to identify the Java program that is maliciously accessing my web site from many client addresses?

For many years, my personal web site receives numerous pairs of hits that look like this, every day: 202.xx.xx.xx - - [22/Apr/2013:12:02:26 +0000] "GET / HTTP/1.1" 200 5923 "-" "Java/1.4.1_04" ...
2
votes
1answer
114 views

Trust linux images burned from untrusted systems

For securitys sake I'm assuming my system is successfully compromised after a targeted and/or non-targeted attack. I've downloaded some linux images and burned them to do a re-install. Since I can't ...
2
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1answer
315 views

How Browsers prevents Malware and Phishing attacks

I want to know how phishing and malware protection features are implemented in modern browsers like Chrome, Firefox, IE etc. Are these features heuristic based, or do browsers maintain a list of ...
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2answers
7k views

How does Remote Access Trojan / Backdoor Software work?

How does the RAT works? I understand it as once we surf the infected website, browser might download the trojan to our PC automatically. Will it executed and auto install in our computer? I can't ...
2
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3answers
309 views

How could an iPhone be transmitting abnormal loads of data without apparently running anything?

My iPhone has sent/received 900MB in 15 days from "com.busuu.japanese.a" I got this information from Onavo, which 'compresses' my data. I have never heard of Busuu until today. It is a language ...