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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Is Window's system restoration useful for getting rid of malware?

If your computer has been infected with some kind of malware, could a restoration of the system, using the tool provided by windows, help you getting rid of that malware? We should suppose that it ...
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1k 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 ...
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166 views

Why run ondemand scanners in failsafe mode when the virus could have encrypted itself?

The internet is full of guides of how to remove malware on already infected computers. Normally, step 1 is to enter failsafe mode, so that the virus can't interfere with the anti-virus program that ...
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992 views

How do I know if a font is malicious?

There are cases of fonts being used for exploiting vulnerabilities {for ex: ThreatPost, SecureList and F-Secure}. My question is if you ever get hands on such a font, how do you know that it is ...
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1answer
181 views

Securing a Site: Diversity over Simplicity?

This question was derived from my off-topic questioning here: Does Centralisation Decrease the Probability but Increase the Damage of Exploits? Like before, I suspect this may be overly abstract as a ...
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562 views

What is disk encryption worth? Threat of proprietary Bios, SMM, optionrom, TPM etc?

Supposing there is private/secret data on a machine (i.e a x86 arch) the most reasonable thing to me would be to encrypt this data, so to protect it. I understand that the purpose of ...
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2answers
5k views

Security Alert - Office File Validation - how to decide whether to proceed?

Recently, when opening a Microsoft Word document that came from a trusted source, I received the following warning message: The warning message is titled "Security Alert - Office File Validation". ...
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1answer
432 views

Odd requests to health_check.js show up in Fiddler

I had Fiddler running and noticed that there are few calls made to following url: http://www.yimgr.com/health_check.js?ts=1412350007104 the content is just this JSON payload { "chance": 0.5, ...
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123 views

Where to submit collected malware from my honeypot?

wondering if you could help me. i setup the Dionaea honeypot and have collected 6 or 7 malware files. Unfortunately upon checking the Dionaea logs it keeps giving the error "Couldn't resolve host" for ...
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1answer
2k 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? ...
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657 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 ...
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2answers
527 views

Has anyone else seen commands embedded in an ICMP echo request?

My IPS recently detected a type 8 ICMP packet (echo request) with an unusual payload. The echo request command a fragment of a command that looked like part of a route add. Here's a PCAP of the ICMP ...
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1answer
127 views

Should veil framework produce packed and obfuscated binaries which bypass virustotal?

I have been working with the veil framework to test an internal IDS system I have in place. I have used a public malware sample which produces an 8/53 hit score on Virustotal and run it through the ...
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1answer
2k views

What happened with badBios [duplicate]

Maybe some of you remember that in November 2013 the respected researcher Dragos Ruiu claimed that he was infected by some super advanced virus that no one ever heard of before. Experts agreed that ...
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1answer
134 views

How does malware hooks ASEPs?

What are the operations made by malware to hook the auto start extensibility points in order to be able to run at the startup of the computer that runs Windows operation system ?
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30 views

What security problems does copying .Xauthority to another user present?

If I want to use a GUI application with another user (example: webbrowser), I can copy the .Xauthority file to that given user's home then I can "su - user" and start the GUI app. Question: but what ...
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2answers
132 views

find if 0-day flash bug was exploited (on a particular machine)

There have been several critical 0-day exploits in the past days/weeks in Flash alone. Nobody knows how long the 0-days have been exploited, and it is reasonable to expect that there are 0-days being ...
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2answers
127 views

Is there a way to check for “hollow” processes, or malware hidden within “normal” processes

I recently came across an article on the The Verge, which centers around the concept of commercial malware production and how it's used around the world. The article introduced me to a number of ...
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2answers
115 views

Malware known for stealing private ssh keys

The ssh private key file, stored under ~/.ssh/id_rsa in many *nix distros, is typically owned by the user, allowing any program invoked by that user to read the file, and perhaps upload it to a remote ...
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79 views

Would DLL hijacking work with load-time linking?

I was wondering if DLL hijacking would work with all types of linking or just run-time linking. I hear that malware uses it and wanted to know how it works
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1k views

How Do I Troubleshoot a Browser Hijack on a Mac?

My Mac is getting weird redirects with Safari and Chrome, however not with Mozilla Firefox. Since I cannot find software to do malware removal on Apple products or any good information, I am at a loss ...
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1answer
474 views

How dangerous is a virus introduced to a malicious website in chrome?

I am using Google's Chrome browser under Linux (Ubuntu) 64 bit for web browsing. If I a virus uses for example a leak in the flash player, the virus will get the privileges of the user who started ...
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1answer
142 views

The Economics and White Hat Nature of NSS ExploitHub

This question is about the economic model employed by NSS with their ExpoitHub exploit marketplace (site link) and whether it jives with the white hat claims of the company. The company has made news ...
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3answers
98 views

Does it matter which platform a file is scanned on for malware?

Different operating systems use different file types and file systems. Does it make a difference to a virus scan which system it is being run on and what type of malware it's looking for? I ask ...
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2answers
838 views

How can NSA implants and backdoors be detected? [closed]

It has been a while now since the Snowden revelations of various NSA malware and backdoors. For instance: March 12, 2014: NSA has developed implants to take over targeted computers’ microphones ...
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4answers
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Writing malware in java?

To me, it seemed like malware could never be written in java. Those who taught me java said it was "secure" and did not allow "low-level access" like c,c++. But, I discovered that it can be done - ...
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4answers
840 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 ...
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185 views

Where a sysadmin deletes a company's data, why can't they just restore from backups

As an example, in the UBS Duronio case, Mr. Duronio executed code that deleted everything in its path, but isn't there a backup server? Why was UBS hit by the loss of data? If the backup is available, ...
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1answer
2k views

Is bit.ly a malware distributor?

I clicked this link http://girlsguidetosurvival.wordpress.com/ Chrome gave me this warning - Attackers currently on bit.ly might attempt to install dangerous programs on your computer that ...
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3answers
1k 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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2k views

How is it possible that a virus can infect the system if the browser is started with non-admin rights

If I open my web browser (for example firefox) in Windows 7 with activated UAC as normal user (non admin) a virus - which uses a security leak in my browser - will only gets privileges of the normal ...
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3answers
348 views

I found a malicious website embedded in Malware spam. What should I do?

An email is using social engineering to get users to click on a malicious URL that downloads javascript and then runs malicious code. Who should I report these malicious URLs to? (Microsoft ...
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3answers
3k views

Malware infections from visiting or using YouTube

Is it possible to be infected by viruses or other malware while visiting YouTube? What kind of measures do the YouTube staff take to prevent viruses and malware?
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Can the USB standard be altered to prevent the “firmware attack”? [duplicate]

Wired, and others are reporting on a research paper by Karsten Nohl and Jakob Lell. The paper apparently shows how any USB device (not just memory sticks) can be infected with malware at the firmware ...
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3answers
7k views

Can a PDF file contain a virus?

Could a PDF file contain any type of malwares ?
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1answer
432 views

I accidentally installed an adware filled Firefox [solved]

I installed Firefox using a download site, rather than the correct site. After running and installing Firefox I noticed my Chrome had an addon called swift browser added to it by a third party. After ...
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4answers
486 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
510 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
918 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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Can malware physically damage a hard drive?

I recently responded to an incident of supposed malware infection. The symptoms were simply, "My computer freezes at random times." The response ended with replacement of the physical hard drive and ...
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5answers
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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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583 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
187 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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4answers
284 views

Could a compromised WP database cause re-infection without the hacker needing to login into WP?

Is it possible that a compromised WordPress database could somehow be used to re-infect a website? I'm not talking about the hacker decoding user passwords and login into WP. I'm talking about the ...
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13k 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 ...
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2answers
887 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 ...
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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 ...
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290 views

How to deal with resistant malware

Everytime I visit Gmail, Facebook, YouTube, or Yahoo mail, I get a popup "Please update Internet Explorer" (while I'm using Chrome!). I don't have screenshots but this website describes the problem. ...
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496 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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268 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 ...