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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0
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2answers
42 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
votes
2answers
66 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
votes
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. ...
-2
votes
0answers
55 views

How to download malware binary samples from Virustotal? [closed]

Does anyone know how to get sample malware binaries from virustotal? If yes please tell.
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
vote
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
votes
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
votes
1answer
76 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
vote
3answers
91 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 ...
1
vote
2answers
35 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
2answers
64 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
vote
2answers
303 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) ...
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 ...
1
vote
2answers
53 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 ...
0
votes
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)
0
votes
1answer
140 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 ...
2
votes
4answers
282 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 ...
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 ...
2
votes
2answers
528 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 ...
1
vote
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 ...
2
votes
1answer
65 views

is there a Virus that attempted to foil generic decryption techniques and how it did that?

is there a Virus that attempted to foil generic decryption techniques and how it did that ? need t o know the VIRUs name because i tried searching and unable to locate any virus who did that and the ...
1
vote
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 ...
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 ...
1
vote
2answers
121 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 ...
1
vote
1answer
138 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?
-2
votes
1answer
87 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 ...
0
votes
1answer
187 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 ...
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
77 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
85 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. ...
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 ...
0
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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 ...
1
vote
5answers
196 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
1answer
48 views

Can standalone malware survive on current mobile devices? [closed]

Can malware run on mobile devices? I don't see how it would be able to (given that those devices have fine-grained permissions and sandboxing). Unlike on a desktop OS, malware cannot access registry ...
1
vote
2answers
577 views

Does Dropbox offer any protection against infected files? [closed]

Does Dropbox offer any protection against sharing files which are infected? To give more info, my friends and I are currently working on a college project. We find it much more convenient using ...
-4
votes
2answers
97 views

When using software to infect others, how are hackers them selves not infected? [closed]

I assume all hacking software (password cracker, R.A.T. etc...) are infected. So the hackers using it are probably hacked too, right ?
0
votes
1answer
138 views

How can I tell if my client has been infected with CryptoWall?

Today a client ran a file they believed to be something else, they said a black window appeared, so I checked the code to see what it ran in CMD, but can't quite work out what it's doing. I've just ...
7
votes
2answers
124 views

Does Android have sufficient app sandboxing?

In a previous question in InfoSec, I asked about how to determine the safety of a sideloaded Android app that requires root permissions. Now I would like to ask a related, but different question: Is ...
8
votes
2answers
958 views

Are there / have there ever been viruses that completely evade virus scanners for very long?

Are there, or have there ever been viruses that completely evade all virus scanners for a long time (e.g. longer than a year?)
0
votes
0answers
67 views

Protection against Bad USB not working for me

Protection against bad USB as described in this thread by user 10008 in the top voted answer is not working on my PC at the moment. I tried it when trying to install Ubuntu from a Live DVD to a USB ...
1
vote
2answers
147 views

Possible to detect an/or shut off CryptoLocker by limiting total network bytes transferred?

Since a virus infected PC has to download (encrypt) reupload the entire file (to a file server), and repeat the process for every network drive, is is possible to detect this unusually high bandwidth ...
0
votes
3answers
241 views

How to make undetectable malware [closed]

Fred Cohen in 1986 has proved in his Ph.D. thesis the undecidability of viral detection (no perfect virus checker can ever exist). My question is : Is it possible for a malware to stay very long time ...
10
votes
4answers
1k 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
236 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
84 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 ...
13
votes
3answers
429 views

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 ...
2
votes
2answers
88 views

Determining safety of Android APK executable that requires root

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 ...
4
votes
3answers
215 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 ...