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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0answers
14 views

How do you detect a virus in an image

I have no idea. [padding for minimum requirements]
6
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8answers
35k 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. ...
1
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1answer
78 views

Is there a virus that attempted to foil generic decryption techniques, and how did it do so?

Is there a virus that attempted to foil generic decryption techniques? How did it do so? I need to know the virus name, because I tried searching and I am unable to locate any virus that did that, and ...
1
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3answers
181 views

Unknown hijacker/popups on the browser

I was cleaning my father’s laptop which was recently infected by a fairly tenacious piece of malware. It hasn't given any great clues as to what it is named or anything of that sort and thus far ...
0
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2answers
44 views

Fiddler show external requests but not initiated by any legitimate process

While debugging my web application in Fiddler, I found out that there are some suspicious requests to some hotel sites, search requests to google.pl. etc. See below images. Strangely there no process ...
3
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2answers
69 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
67 views

Is This A Run32dll.exe Virus [migrated]

I have two run32dll.exe processes, one in System32 and another in SysWOW64. Is one of them a virus or is it normal? Sometimes only one is there (SysWOW64) and this one uses 60-90 Mbs Of memory. ...
1
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0answers
49 views

How to deal with virus causing massive startup delay? [closed]

I have an SSD and normally startup only takes seconds. However recently my PandaSecurity said it detected a virus and needed to restart to purge it. When I allowed the computer to restart, the ...
1
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2answers
99 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 ...
1
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4answers
426 views

Protecting Backups from Viruses

Currently we are using ReadyNAS by NETGEAR to hold all our images from all our machines. My question is can viruses expand from the machines and infect the NAS drive and the backups? We are using ...
-1
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0answers
63 views

Viruses inside images?

I have a website where I show some images. Usual stuff like user-avatar, their uploaded pictures, etc. I was wondering if I need to scan those files before I store them in my server (linux machines). ...
0
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1answer
80 views

Cryptowall files found, but nothing encrypted

I've got a weird situation here and wanted to see if anyone else has run across this. Windows Security Essentials found Cryptowall on a system here and was able to remove the trojan that causes drops ...
1
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3answers
93 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 ...
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1answer
171 views

Is there any virus that deletes Personal Folder? [closed]

I noticed that some special folders of my ex-HDD have been deleted. 'Personal' is one of them. Is there any virus that does that?
1
vote
1answer
2k 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 ...
1
vote
2answers
36 views

Is there a online filter to check email attachments?

I've just received an email from an old employer. There is very little information in the message sent just: See attached file for your review. Kind regards, Mick with an attachment. I ...
0
votes
1answer
144 views

Prevent CryptoLocker on Server

A quick question, which may have a not-so-quick answer - Are there any ways to prevent files associated with CryptoLocker, to be propagated to a data server, by means of a back up? We use Cobian as ...
44
votes
6answers
7k views

Virus Encoded in Video

So I'm not familiar at all with IT Security, but I'm a bit curious about something. I was watching a TV show and at one point, a virus spreads through an office. They investigate and find out that the ...
2
votes
1answer
3k views

Can virus save to SIM Card?

(Before everything excuse me because of my English) Today one of my friends asked me about his Nokia 130 Dual SIM. There was a problem about Short Message System. No Messages were sent from that ...
0
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2answers
67 views

Can VPNs prevent information from being stolen by keyloggers screen readers?

What role, if any, do VPNs play in preventing information being stolen by keyloggers and mouse/screen readers? Here's my thought process: Even if malicious software is present on your device, for ...
1
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2answers
306 views

how to detect an encrypted virus

a virus code (x bytes long) is XORed with a x bytes long word (we call this T). This word T is built repeating multiple times a 8 byte secret key. the infected file contains this XORed (obfuscated) ...
5
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3answers
1k views

Is it possible to catch a virus on my LAN without clicking on anything?

My unpatched PC running Windows is connected to a network which contains other "infected" computers, can I get infected by viruses without any interaction on my part?
1
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2answers
2k 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, ...
1
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2answers
54 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 ...
9
votes
1answer
142 views

Virus attached or included in VST(i) Plugin

VST Plugins are DLL files available to be put into a folder in the Music Tool which then can use this as a plugin. Does VST have a mechanism not to execute malicious code inside the dll file? Can I ...
3
votes
2answers
278 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.
2
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4answers
284 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 ...
0
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1answer
54 views

Opening mail without any risk [closed]

Before opening unknown email (not in spam folder) how we can identify no any danger inside the mail (with availability of active virus guard)
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0answers
339 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 ...
19
votes
3answers
4k 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 ...
2
votes
1answer
114 views

Is there anyway to easily decipher this virus code?

My server was attacked (I cleared the infection - as far as I know) and I want to know what, if anything, might have been compromised (like my user data, for example). I posted my last question on ...
2
votes
1answer
189 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 ...
0
votes
3answers
4k views

Can you write OS-related virus using high level languages like Python

It is a well known fact that OS-related viruses are commonly written in low level languages like C or C++ which require direct access to the kernel of the CPU , I am just wondering if its possible ...
2
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2answers
552 views

Can I have a virus/adware in my router?

When I browse the Internet (in any browser), there are extra ads. I thought it could be on my computer, tried Ubuntu live disk, and even there were these ads. Same ads are on my iOS and Android ...
3
votes
0answers
47 views

Determine in which process a virus is hiding [closed]

My computer got one of those Recycle bin viruses, e621ca05.exe. It's an old installation of Windows XP and I can't even enter safe mode because it was in a shaky state already. So I can't follow the ...
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3answers
75 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 ...
1
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1answer
113 views

backdoor php trojan still dangerous on my local machine?

I recently removed and fixed a lot of backdoor trojans in some files in one of my servers, and I copied those files to my local computer. But the issue is that now that I run the virus scanner on my ...
12
votes
2answers
3k 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 ...
1
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2answers
123 views

Hidden Malware on a windows OS able to startup [closed]

How do hackers hide there malware on windows, to startup and be impossible to find then delete. The results I found that a hacker can use to hide his malware: (found here) Windows: Setting hidden ...
2
votes
0answers
72 views

Remote accessed? [closed]

I'm not an IT professional but I'm hoping someone will take the time to answer this. I'm not generally such an idiot but this happened: I was using Ancestry.com on Chrome and clicking links within ...
2
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0answers
66 views

Are old Android WebViews 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, ...
1
vote
1answer
143 views

I think i might have accidentally clicked a phishing link, how can i be sure? [closed]

Long story short I might have accidentaly clicked a phishing link is there any kind of test I can do or anything I can do to check?
0
votes
1answer
188 views

What does this malicious JavaScript code do? [closed]

I got this by email this morning before my brain woke up and I clicked on it. Does anyone know how bad this is? It gave me an out of stack space error when I ran it. var ...
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1answer
88 views

Stuxnet - The background functions [closed]

Stuxnet was a clever worm that aimed to malfunction programmable logic controllers on nuclear networks (Iran was the most affected). Nuclear networks were private networks, not supported on Internet ...
13
votes
3answers
2k views

FTP hacked, planted file [closed]

Can anyone help me to understand what this does? Someone has planted a file with this piece of code on my server.It is shortened because it cannot fit the question, but just to have some idea what ...
0
votes
1answer
79 views

Possible virus hogging bandwidth [duplicate]

My computer might have a virus infection. I have used Norton Internet Security and Power Eraser to scan the computer but it still did not work. The traffic on my PC looks like this I used resource ...
-3
votes
1answer
126 views

What is the most successful virus/rootkit? [closed]

"Successful" is rated by infection rate. Which virus/rootkit/malware has been able to infect the most computers globally?
0
votes
1answer
86 views

Why should I add a certificate to “Trusted Root Certification Authorities”?

I want to use a programm, which lets me modify touchpad gestures. http://www.multiswipe.com/faq But I need to add their certificate ( see in FAQ [ How to install MultiSwipe? ] ) to make it work. ...
1
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5answers
198 views

How can I stop this remote attack?

Someone appears to be logging into my machine remotely, I am running Avast anti virus with Comodo Firewall both report no attacks.I only noticed this because on my router security logs I see the ...
0
votes
0answers
23 views

How to remove Cryptowall Locker Virus [duplicate]

I have been getting issues with this Cryptowall Locker Virus, is there any permanent solutions to remove this virus from my pc. I have taken help from ...