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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1answer
27 views

Malware from TPB(piratebay) infected my pc. I need to transfer my data into external hdd before wiping my hard drive

OS: Windows (Primary), Ubuntu (secondary). Few days back I was using TPB(piratebay) obviously for educational purposes,even though I have ad-blocker at the time of browsing some advertisement did pop-...
1
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4answers
2k views

Are these “Urgent Firefox Update” popups bogus?

I've gotten, over the past couple of weeks, at least three screens popping up saying "Urgent Firefox Update". These are from URL https://eexowdlzyjx.net/. At least once they have been preceded by "...
11
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3answers
1k views

Would a (password + combination of images) be stronger for user's login regarding keyloggers?

The scenario: We have a login system for a web application that requires a plaintext password and 3 images (from a collection of images that the users select during registration, the images are ...
2
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1answer
230 views

How to trace and single out this Malware in Browser Extensions? Chrome/ Opera?

There have been lot of articles about legitimate chrome/ opera extensions that get sold out to malicious parties that end up pushing the wrong kind of code down the pipe, since by default these ...
2
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2answers
106 views

What is the meaning of this possible malware?

My hosting service was helping me to identify a problem, and we found the following possible malware (which, of course, we have removed). Unfortunately, I'm not terribly technical, and so I am ...
2
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2answers
170 views

What risks do I have now that I accidentaly opened a suspicious URL send to me by Skype?

The following URL was sent to me by a trusted Skype contact (from my university): WARNING - DO NOT CLICK IF YOU DON'T KNOW WHAT YOU'RE DOING http://bit.ly/28PPw3V#dahubas=my_skype_id I clicked on ...
0
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0answers
29 views

How does quarantine feature work internally in antivirus? [duplicate]

I'm struggling to find out the internal encryption and details of quarantined file. if any body knows the information please share.
0
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0answers
38 views

I may have been compromised, now what?

How to trace and single out this Malware in Browser Extensions? Chrome/ Opera? I had installed the extension mentioned in the thread above. It contained Malware the redirected Java functions mainly. ...
0
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2answers
97 views

How does malware protect its own malicious code from being exposed?

For example, if a new rootkit starts spreading and reaches a malware honeypot, any skilled security specialist could get a memory dump of the system, find the malicious code and reverse engineer it, ...
0
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0answers
17 views

Risk from browser add-ons?, from external sources [duplicate]

Can a user agent switcher read my passwords? what if it is not mallicious but weak, could it be a faultline for others to hack me?
0
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1answer
36 views

Are the Linux community/universe repositories significantly less safe then the main repositories?

If so what makes community/universe less safe? Is there less testing or is it simply less safe because more people could put malware in them.
7
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3answers
147 views

Is malware distributed with pirated software actually common?

An often-repeated piece of conventional wisdom goes like the following. Don't download pirated software, they often contain malware. I'm curious to know if there are any hard facts to backup ...
1
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2answers
69 views

How does a malware overcomes this facility

I've seen many viruses/malicious VB scripts get executed when accidentally double clicked or through fake shortcuts redirecting to some viruses causing the Victim's PC a serious damage. But nowadays ...
0
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2answers
37 views

Does a malware in an android phone have permission to read/modify/delete data of all the apps?

If an android phone is infected with malware/virus, can it access all the apps with modify/delete/read permission? Isn't there any control by an app , say a bank app which can't allow to read data by ...
0
votes
1answer
56 views

Analyze attack as an outsider

Today I visited my favorite news outlet using Firefox on my Android and suddenly I got malicious .apk file downloaded to my phone. Of course, I immediately reported the incident to the site owner. ...
0
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1answer
31 views

Yahoo for Chrome redirect? [on hold]

I was on my computer, and when I opened chrome it goes to my email (I set it to my homepage), but sometimes it would take make a new tab and take me to a different site which was obviously looked very ...
0
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1answer
46 views

How to deal with possibility of viruses on Dropbox, Google Drive, external hard drive, etc?

For home use, what is the best way to deal with viruses that could be on external storage, which seems like a great way for hackers to persist on your system even after a reformat. Maybe the best ...
0
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2answers
539 views

How exactly does this Flash malware function on Ubuntu?

In this video, an experienced Ubuntu user manages to infect his system with some sort of malware. This is the first example I've ever seen of truly successful malware in the wild aside from privilege ...
1
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1answer
49 views

Shared folders in Windows to/from unsecured PC on the same network

I have a Windows 10 desktop computer which is my main device. It's password-protected and I'm not concerned about it being physically accessed by bad actors. I have a Windows 7 laptop with a fresh OS ...
0
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1answer
55 views

How does malware downloaded by JavaScript get executed, and why would you distribute malware in a .js file?

I have two questions about JavaScript as an infection vector. The first one is about a user getting infected while visiting a website, and the second is about getting infected by e-mail via attachment....
2
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1answer
870 views

HTML iframe security exploit

Can somebody explain if there's something malicious in this HTML, The width and height of the iframe ares set to 1 and it's out of the view with top: -100px; statement. I believe it takes some some ...
0
votes
1answer
36 views

What kind of damage does the HummingBad Android malware do when it fails to gain root access?

There is this Android virus out there called HummingBad, and it seems the first thing it tries to do is try to get root access. There are so many device models out there, and the rooting process is ...
3
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3answers
313 views

Which security measures does PyPI and similar third-party software repositories take?

PyPI is a third-party software repository for Python packages. Everybody can upload packages to it (see The Python Package Index (PyPI)). How does PyPI prevent people from uploading malware? When I ...
0
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0answers
25 views

How exactly does the HummingBad Android malware gain root access?

I've read a little bit in the last few days about HummingBad, an Android virus which tries to gain root access. It seems to use the root access to display ads and install apps. Varying estimates put ...
0
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1answer
48 views

Script injection on all browsers

I have something injecting a script into all web browsers that I have tried - Firefox, IE, Edge, Chrome - and it doesn't look like an extension (since it is doing so in different web browsers). I ...
3
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0answers
65 views

Is the iPhone vulnerable to the BadUSB malware?

Supposedly, the BadUSB malware can infect any USB device. But I find this hard to believe since I don't see why most USB devices would have reprogrammable firmware and I find it even harder to believe ...
2
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1answer
55 views

Could a computer turn itself on if the BIOS was modified even if it was turned off by holding the power button down?

My Thinkpad might have been hacked and I know this sounds a little far-fetched, but I suspect the BIOS might have also been hacked. Would turning it off by holding the power button for a few seconds ...
0
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1answer
31 views

If a malware/virus can insert from clipboard to a webbrowser form, than can it insert key presses too?

Question: If a malware can insert from the clipboard a password to a webform in a webbrowser, than can it "in general" insert key presses too? Related to password fields, that disabled the clipboard ...
0
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0answers
38 views

Any known malware that changes commits?

Recently I've been hit by a strange behaviour of SVNTortoise, maybe I got a malware? Are you aware of any SVN related malware that changes the actions done by team-mates? It's the second time it ...
0
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1answer
66 views

Can't remove suspicious bridge connection

I'm currently fixing the computer of a family member who just fell for the "I'm from Microsoft and let me take control of your computer please" phone scam. The computer is an old Core 2 Duo running on ...
1
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2answers
5k 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
votes
1answer
58 views

How does the quarantine of anti-virus/malware software work? [duplicate]

What is the quarantine of antivirus software? Is it just some strict user/group rights and changing file extension or is it an actual moving the file(s) to a virtual environment? How is this software ...
1
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3answers
362 views

How can I kill minerd malware on an AWS EC2 instance? [duplicate]

I have an AWS EC2 instance running RHEL 7.2 which seems to have been hacked by a BitCoin CPU Miner. When I run ps -eo pcpu,args --sort=-%cpu | head, it shows that there is a CPU miner that's taking up ...
4
votes
2answers
401 views

Why Antivirus Detects Simple Java Program as Trojan?

Just now I was testing a very simple code in Java when I noticed a strange thing. On compiling the program my antivirus detected it as trojan and deleted the jar file. Further it is not allowing me ...
1
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1answer
75 views

Can you get a virus from sending a GET or POST request? [duplicate]

If I need to fix up my question in any way please let me know, this is my first question on the site So there's a game development website I use where you can develop with other people, and within ...
0
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1answer
59 views

Deobfuscating JavaScript Malware

Recently I was going over my network activity and came upon a PCAP that is directly related to a Trojan Dropper. Taking a quick look into the TCP stream of the packets, I found some malicious ...
34
votes
4answers
27k views

Does a Virtual Machine stop malware from doing harm?

I would like to know if it is save for the host system of a virtual machine (VM - VirtualBox OSE in my case) to execute malware. Can a virus break out and read or write data from the host system? ...
27
votes
1answer
3k views

Has malware ever been found in a package from a large Linux distribution and what is done to prevent this from occurring?

I am wondering exactly how safe are the Arch, Ubuntu, Mint and Manjaro repositories. What testing is done to ensure that a trusted user does not place a virus in a package, and how often?
0
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0answers
53 views

Why does Windows Explorer connect to some IP address? [duplicate]

I recently found that my Windows Explorer is connected to some IP address from Spain. As I know that Windows Explorer should not connect to the Internet, I installed an antivirus and firewall, which ...
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 ...
0
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0answers
31 views

Dynamic Analysis - understanding processes and modules

Recently, I have been teaching myself Malware Analysis in my home lab environment. I am attempting to find the process tree for Malware so I can write end point signatures for them. However, I have ...
3
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2answers
108 views

How To Remove Possible Virus Files

See the original question. Using both AutoRun, where I disabled anything that wasn't verified or highlighted (that seemed suspicious), I looked at Process Explorer and found the above unverified. In ...
0
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0answers
20 views

How to prevent cache-based side-channel attacks in IoT devices

The sharing of hardware resources from various vendors in the Internet of things is fundamental for efficient processing in the cloud. The presence of a myraid of clients accessing the same hardware ...
3
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0answers
61 views

How can an executable be this small in file size? [migrated]

I've been generating payloads on Metasploit and I've been experimenting with the different templetes and one of the templates you can have your payload as is exe-small. The type of payload I've been ...
0
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2answers
42 views

Attack vectors and payloads [closed]

I have a question about malware. Malware attacks a machine through an attack vector. When it infiltrates the machine, it "unleashes" the payload. Now, let's say that I am infected by a virus, which ...
2
votes
1answer
220 views

How to scan large .bin files for malware?

I know about websites like VirusTotal, and programs like herdprotect. I'm using Avira and Superantispyware, but once the large bin files are scanned, usually nothing is found. But after running an ...
1
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1answer
59 views

Security of a backup server

I am concerned about attacks of the crypto malware which encrypts all storage reachable (for a ransom payment you get the key to decrypt). I use only Linux (Debian) and have a separate ARM computer to ...
6
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5answers
16k 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 ...
36
votes
2answers
14k views

How secure is the Windows 8 included Anti Virus known as Windows Defender?

How secure is the new Windows 8 anti virus known as Windows Defender? Does it have a protection against malware which uses UAC bypass/process injection/rootkits/process persistence/running the binary ...
1
vote
1answer
72 views

Javascript file detection

One common technique I use is xor bruteforcing on binary data. In this case, I would like a heuristic approach to determine whether or not any possible candidate plaintexts are javascript. This rules ...