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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2answers
178 views

How does malware performs a UDP hole punch?

I want to know how do malware like ZeroAccess hole punch the network without using a external server? Or do they just mainly infect non-NAT users? Does that mean all NAT users are safe?
4
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1answer
134 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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3answers
391 views

Large amount of foreign IPs hitting out firewall, is this automated scans or are we under attack?

I just got put in charge of a network. In the logs on our firewall I noticed that we had a large amounts of machines trying to connect to port 53 as well as about a dozen other ports. Are these ...
8
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3answers
5k views

Windows: unknown program/service etc. sends HTTP request to download a file; how can I find the origin of that request?

The firewall of my company has detected and blocked a repetitive (every 15 min) HTTP request from a PC, which tries to start a download of a file called ..._chrome_installer.exe(or so) from the host: ...
3
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2answers
9k views

Does Chrome OS Allow Executable Files?

My company has some real security issues and I am wondering if using Chrome OS can be some solution to my problem. Typical Windows computers seems all to vulnerable to attacks from malicious images ...
0
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1answer
198 views

Malware code in WordPress?

I'm pretty sure that we have malware code in our WordPress website - Here is the code in question, it is located at the top of every php file in the website; { $ua=strtolower($_SERVER["\x48\124\x54\...
4
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1answer
374 views

Does malware which infects the BIOS/ Firmware always need 'root' access to do so?

There are very few hardened Operating Systems who restrict or totally disable Terminal 'root' access for the user. Would this feature prevent persistent BIOS rootkits from writing into BIOS or ...
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1answer
138 views

AV isn't dead, so why network appliances differ in handling malicious code [closed]

when taking a look under the hood of some firewall appliances there can be observed a tremendous difference on how they handle malicious code. mostly, av-scanning is restricted to well-known protocols ...
9
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0answers
899 views

How to isolate persistent pop-up browser hijack [closed]

There's a persistent browser pop-up affecting Mozilla Firefox which has evaded a number of security pre-cautions and attempts to find a remove it. It's gone on for at least 3 months. The pesky pop-up ...
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1answer
169 views

What are the chances of a normal Internet user being hacked or infected by malware? [closed]

Say I'm a normal Internet user, I visit some well-known social networks like Facebook, twitter, play flash-based games in Facebook, visit some big websites that are known to be safe and trusted and ...
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2answers
354 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 ...
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0answers
2k views

How do I get rid of the Total Ad Performance malware from my Android? [closed]

My Sony Xperia Z3 Compact has been infected by a malware that redirects my browsers to either one of the two websites: www.totaladperformance.com or www.admomi.com. I have the paid version of ...
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2answers
1k views

Prevent a file from being encrypted

Is it possible to prevent a file from being encrypted, or at least being easily decrypted in case of encryption? For instance; with the Crypto Locker malware attacking users, could you set up a ...
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1answer
82 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 ...
2
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1answer
6k views

In Metasploit, how to use a custom exe as payload?

Question was once on a mailing list but wasn't answered. I want to use a custom exe as a payload in metasploit. For example when I use exploit/multi/browser/java_atomicreferencearray and want to ...
7
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1answer
408 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 ...
6
votes
1answer
4k views

ISP glitch or a malware? Has this ever happened to you?

Brief background: I consider myself a relatively paranoid power-user, if not an absolute pro. I regularly update my AV and keep up with all the latest updates on my Windows 7 machine. But what ...
10
votes
6answers
51k 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. ...
3
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1answer
54 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 ...
4
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2answers
629 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
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2answers
801 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 ...
3
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1answer
101 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 ...
4
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2answers
115 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 ...
9
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5answers
816 views

Is there anything I can do about IDN homograph attacks?

I have been reading about IDN homograph attacks, and I cannot think of any better way than Tell my users not to trust emails asking for passwords, etc Buy all domains similar to mine (expensive and ...
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
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2answers
749 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 ...
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3answers
312 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 ...
6
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3answers
237 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 ...
5
votes
1answer
6k 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? http://www.codeproject.com/Articles/3978/Trap-...
1
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2answers
160 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 ...
5
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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 ...
1
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4answers
468 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 ...
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0answers
170 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 ...
5
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2answers
234 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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2answers
4k views

CloudFlare - prompted for “attention required”

I am getting a CloudFlare - attention required / security check prompt on most of the sites I visit through my Macbook running OS X Yosemite, these sites work perfectly on other devices (such as iPad, ...
0
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0answers
121 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
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1answer
205 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....
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2answers
283 views

How can the Equation Group HDD firmware malware help bypass FDE?

There is currently a lot of discussion going on across the Internet about the "Equation Group" family of malicious hard disk drive firmware. One thing that has me wondering is the claim that ...
4
votes
3answers
726 views

How can I recognize and find file(s) dropped by malware?

Suppose I am doing malware analysis. How can I recognize if, during the analysis process, a piece of malware dropped a file in my system, and if so, the path of the file? What are the procedures, ...
2
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1answer
184 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 ...
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 ...
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?
6
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3answers
343 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 ...
3
votes
2answers
692 views

Is it possible to get malware through an incoming video/audio stream? (e.g. Omegle, Skype etc.)

just a quick question. Is it possible for incoming video/audio streams to contain malware etc. through exploits in the transfer of the video/audio? Thanks in advance.
0
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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 ...
3
votes
0answers
116 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 ...
2
votes
1answer
107 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
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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 ...
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2answers
58 views

unprivileged or privileged malware for botnets

For those malwares which are used to organize botnets to DDOS a website, they just need to send and receive HTTP packets. Do they need to be privileged? If they dont need to be privileged, is it true ...
0
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2answers
452 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 $...