A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes.

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10
votes
4answers
944 views

What is Net-Worm.PHP.Mongiko trying to do?

I found several lines of this request in my web server access log: Source IP Dest IP Request Stat User agent 217.172.190.19 ...
2
votes
3answers
66 views

Can a wireless headphone (bluetooth) contain malware?

Can a wireless (bluetooth) headphone store data? Also, if it can, then can someone put malware in it? I assume that the device must necessarily be able to store some sort of data, since it has buttons ...
0
votes
3answers
76 views

How an experienced user decides a download is safe? [closed]

I am new to computer security. I was wondering what an experienced information security user would do when inspecting a file for potential download. Obviously, it would be very difficult to look ...
11
votes
2answers
192 views
+100

remote desktop connection to a potentially compromised machine

I am using rdesktop client on Linux to connect to windows machines. If some of these machines were compromised by some evil malware/virus/worm/trojan, is there any way for the malware to "jump" to my ...
0
votes
0answers
29 views

List of Phishing, Virus(ed), Malware Sites For An Anti-Spam Site [on hold]

I'm looking for a list or database of phishing, full of viruses and malware sites which I can use to test the credibility of my current project I'm working on. Any source where I can find bad, ...
1
vote
2answers
31 views

Determining safety of Android APK executable

On my request, a developer gave me a new version of his Android app to test. The app requires root permissions. I do not know the developer personally. I have no specific reasons to trust or ...
3
votes
3answers
76 views

PHP | Security for allowing user uploads

My Sittuation: I am creating a web application with PHP which allows users to scan their files for viruses. It allows the user to upload their files via the html "file" input type or via a URL. I ...
0
votes
1answer
122 views

How exactly do viruses get on computer when watching online porn? [duplicate]

I've been hearing that your computer could get infected when you visit porn sites, especially when watching videos. But how exactly do viruses get on client side? Is it by cache? Or maybe by ...
1
vote
2answers
253 views

How exactly do you infect the firmware of a hard drive? [closed]

Now that we are told that infecting firmware has been done in practice, how exactly does this work?
2
votes
2answers
64 views

Virus - by-pass with binairies repackaging

Why don’t « hackers » (or more accurately, « virus maker ») just do repackaging over their malware to by-pass antivirus software? Because it resolves the issue of the virus signature (kind of hash), ...
-5
votes
1answer
81 views

IVE BEEN HACKED! [duplicate]

So i downloaded an application that was fishy that came out a couple hours ago on youtube and i was stupid and didnt scan it or anything and i let it run... blam instant security warnings and i ...
3
votes
3answers
3k views

CryptoWall 3 - how to prevent and how to decrypt?

My father's computer is now infected with CryptoWall 3, according to the link below. http://www.bleepingcomputer.com/virus-removal/cryptowall-ransomware-information#CryptoWall Is there a way to ...
1
vote
2answers
56 views

Is the convertomp3.com website hacked? :) [closed]

I wanted to convert a youtube video to mp3, but the website gaved me an EXE? ...
0
votes
0answers
51 views

How to test backend virus behavior?

I have a website that allows the user to upload files. The front-end (web tier) checks the file extension and first few bytes of the file for the magic number of an acceptable file, but then ...
2
votes
2answers
74 views

Is it safe to store a file in a temporary folder before it has been scanned for a virus?

I'm working on an application that makes use of the Symantec Protection Engine to scan uploaded files. I'm having issues with my files after they have been scanned. One possible solution I've seen ...
0
votes
5answers
160 views

how to know that my pc is 100% clean?

I work as a programmer ,i want to make sure that no remote access tools RATS are on my pc before i work on my new project. it happened before that after finishing a hard project, a hacker went on my ...
1
vote
1answer
78 views

Has this method ever been used by viruses to check if system has already been infected?

I know the era of the self spreading worm is over, but has this mechanism for determining if a machine has already been infected or not ever been used? When a virus runs it checks to see if the ...
1
vote
0answers
39 views

Are old Android OS's a risk to Activesync email, and how do I block old devices?

I'm concerned that old versions of Android may be hacked through unpatched WebViews (in PhoneGap and other apps), exposing Activesync email data, and other sensitive information. To mitigate this, ...
10
votes
5answers
257 views

Security of root terminal (su -) when logged into X

I often log into X as normal user (of course), open terminal and switch to root: su - I have then a terminal owned by user but effectively with root privileges. Are there any security issues in ...
2
votes
4answers
152 views

Should text files or image files be virus scanned during upload?

I have created an online web app for my company. It's being tested for security files. The tester loaded the EICAR text file. The virus scanner on the server caught and removed the file. I have only ...
-1
votes
1answer
190 views

Writing keylogger and viruses in python [closed]

So recently I have been working on some projects one of them is keylogger and the second is SYNflood (both in python). I want to know if ,is it a good practice to use python language for such ...
6
votes
3answers
2k views

Detected virus in pdf - should I be worried (CVE-2014-8449)?

I downloaded a pdf earlier, and I was trying to send it to my friend, but gmail said that it detected a virus. So I ran it through virustotal.com and only 1 out of 56 scanners came up with a virus - ...
1
vote
1answer
380 views

ClamAV detected CVE-2014-8449 in some PDFs. How do I know if it's a real problem?

We run clamav on all our user-uploaded files. It's currently giving this message for several PDFs: <filename...>: Pdf.Exploit.CVE_2014_8449 FOUND Looking at the CVE, it's for a integer ...
1
vote
2answers
132 views

Can folders [alone] have viruses?

I know that files can be infected, but can a Folder itself have a virus/trojan?
3
votes
4answers
127 views

Can my phone be affected by malware through mobile phone signal?

My phone is newly bought. Can a hacker actually scan the mobile phone signal around me, detect it, and put virus/malware into my phone THROUGH the mobile phone signal of my mobile service provider? ...
1
vote
2answers
56 views

Trojan name I can't find any information about

I decided to take an online virus scan using ESET online scanner, after getting some weird crash that made my drivers and other parts of the operating system unusable... The preliminary results say ...
0
votes
0answers
62 views

Which antivirus scanners detect malicious files like image files / text files that seem harmless? until double clicked?

I'm on win7 64bit, and I just found out that you can embed scripting data into images and plain text files where it would run the cmd.exe file to execute other scripts. What type of antivirus scanners ...
0
votes
1answer
167 views

SSH scan against D-Link routers: is there a (new) exploit?

TL;DR if you have a D-Link router perhaps it wouldn't be a bad idea to check its SSH settings and/or username/passwords. I am a long-time user of fail2ban on several machines, almost all Ubuntu 12 ...
1
vote
2answers
78 views

Any “cleaned” virus that's been successfully re-released?

Anti-malware software has to keep track of all bad software there is. To ease this load, it seems like a good idea to stop looking for threats that's been dead for years. Is there any example of some ...
0
votes
1answer
109 views

Clicked link on fake email which appeared to be from friend [duplicate]

I receieved an e-mail which at first glance appeared to be from a friend, I clicked on the link provided without thinking as we would often exchance links to sites. The link went nowhere i.e page not ...
1
vote
3answers
149 views

Removing a Redirect Virus from Fedora Linux

Despite several attempts listed below certain websites are getting redirected to a certain ad website automatically, out of the blue on linux. When some website starts redirecting to this ad website ...
-2
votes
1answer
56 views

Old e-mail text types itself back into PC later by itself? [closed]

Occasionally, I'll notice my Win7 PC is typing in text by itself. When I open Notepad leave it, the text being typed in is a snippet of text from an e-mail that I wrote and sent months ago to a friend ...
1
vote
2answers
85 views

Viruses From Email Attachments

My company just got a worm. The specific one is beside the point, but I linked a couple pages that I think describe the worm / virus below. We're getting lots of emails to Outlook asking us to open ...
1
vote
2answers
200 views

“Threat: WMA:Wimad [Susp]” on .avi file, possible to remove threat and keep file?

I ran a full system scan this morning with all of my virus/malware programs and Avast detected 1 virus in an .avi file (which thankfully I have not yet watched): Severity: Medium Threat: WMA: Wimad ...
1
vote
1answer
86 views

Securely erasing USB flash drives from a bootable media

My question refers to securely erasing viruses from the usb flash drives, including the MBR, in case there is one. I was thinking of booting with Linux from a closed CD-R (a cd rather than USB flash ...
2
votes
1answer
146 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.
1
vote
1answer
202 views

Trojan/Worm Cridex Issue

Currently we are receiving a surge in machines that are being attacked with Cridex. We received several spam/infected emails that have used macros to we think deploy a backdoor trojan that is ...
1
vote
2answers
901 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, ...
6
votes
4answers
367 views

What are these URLs in my browsers?

I was testing my Node.JS application. When I opened my app using Chrome and Mozilla, I saw these JS files included in every page I browse. They appear in all browsers I use (Firefox, Chrome). ...
1
vote
1answer
259 views

Is google.com/webhp malicious?

Lately, I've noticed the addition of "/webhp" in the url of Google searches along with some additional variables, "sourceid", "rlz", and a few others. Together, they make a URL in the form of ...
4
votes
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 ...
1
vote
2answers
110 views

Help understanding malware infection

I'm kind of a newbie to security and need help fully understanding how I would infect myself inadvertently. Let's say I was to download a .zip file attached to an email and I unzipped the contents. ...
1
vote
2answers
2k views

Based on these email headers, where is this virus coming from?

I'm seeing a virus in our network with some strange headers. Sometimes they are coming (sourced) from a netscaler VIP, other times they seem to come from an Exchange hub server. How do I determine ...
0
votes
1answer
197 views

My computer hacked? tcpdump show a connection to an ALLOCATED UNSPECIFIED ip address

13:06:05.345111 IP 192.168.1.101.36218 > 157.55.130.174.40033: Flags [.], ack 162, win 237, options [nop,nop,TS val 688796 ecr 596714815], length 0 This IP address is Allocated Unspecified on ...
0
votes
1answer
89 views

jRAT virus on Linux

I dumbly downloaded a .jar file that contained jRAT. When run, it stalls, gives a FileNotFoundException, then crashes. When I ls'd, the jar was there. When I cd'd out and back in, the jar was gone. ...
3
votes
1answer
162 views

I ran a virus on a PC. What should be the next steps?

I wanted to remove a probably malicious executable, but instead inadvertently double-clicked on it while using an account with administrative privileges. Nothing visible happened during a few seconds, ...
3
votes
1answer
126 views

Lifecycles of a computer virus

According to what I read there are four phases: - Dormant phase - Propagation phase - Triggering phase - Execution phase I however am having trouble finding a chronological order in how these events ...
3
votes
2answers
260 views

How can I recover files encrypted by Android ransomware?

My Samsung Galaxy Note II was infected by a virus called the "FBI virus." Fortunately, I've managed to remove the malware but my problem now is that all my files have been encrypted. How can I ...
-4
votes
2answers
104 views

Can an compressed virus still do any harm to an OS [closed]

Let's say you have a piece of malware either as a standalone binary or hidden within a crafted image (two distinct cases). If I compress the standalone binary, can its mere presence as a compressed ...
1
vote
1answer
72 views

using multiple Firefox profiles to increase security

I am wondering whether it would increase security in any significant way, if I would use two separate Firefox profiles, one for normal browsing and the other for private/secure websites, such as my ...