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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Any one know about UDP traffic on source port 26221?

On my captured network traffic i observe a flow having a source udp port of 26221 and have different destination udp ports. Some of these destination ports were standards IANA ports. The average ...
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16k views

Multiple running instances of rundll32.exe

I've noticed that in the Task Manager of Windows 7, I have multiple running instances (2) of rundll32.exe. Does this necessarily means that my machine is infected by a malware as noted here: ...
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643 views

Strange file named Aview.exe - WinClient

Today I've just discovered some strange files on my Win 7 PC. I was browsing through the Windows Firewall Inbound Rules and saw two ACCEPT rules for a program, Aview.exe. It is located in ...
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1answer
276 views

what is the difference between virus, worm, trojan and other malware [closed]

Looking through the questions in IT security, I found out that there is no answer which cover this question in depth. I am aware of the answer and just hope to see something detailed about: main ...
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1answer
122 views

Trust linux images burned from untrusted systems

For securitys sake I'm assuming my system is successfully compromised after a targeted and/or non-targeted attack. I've downloaded some linux images and burned them to do a re-install. Since I can't ...
3
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1answer
205 views

“WICKED” entries in the default nginx vhost's logs

I have a small VPS running nginx, and for a long time now (several months, since I rented it) it has been collecting weird entries in its default (listen 80 default;) vhost's logs: 109.x.x.121 - - ...
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2answers
681 views

Where can I find worm traffic sample?

I have a program that has to detect scanning activity of worms. I need some samples of worms' traffic (pcap files) to try the program, and notes about the procedures which must be taken when running ...
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4answers
423 views

Malware via power outlet

This is perhaps a very dumb question, but as I have no knowledge nor experience of IT security I have no option but to ask here. Is it possible to get malware onto your computer or smartphone by ...
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1answer
82 views

Seeing outboud connections to random domains, how do I isolate the app responsible?

Last night I loaded up Fiddler2 to do a little debugging and I saw three connections to domains like hghefhhig How can I go about isolating the application responsible? I was thinking possibly ...
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2answers
230 views

How serious is a local virus in terms of network security

My colleague got a notification on his machine of a possible virus (through the virus scanner that is installed by default on all machines). He called up the tech department, and they simply told him ...
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1answer
108 views

How does duqu implement its dll files in PNF file format?

As you know files with PNF extension are associated with bitmap file type, from technically point of view how did authors of duqu implement this? as I concluded it is possible to make dlls in any ...
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3answers
328 views

I found a malicious website embedded in Malware spam. What should I do?

An email is using social engineering to get users to click on a malicious URL that downloads javascript and then runs malicious code. Who should I report these malicious URLs to? (Microsoft ...
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10answers
5k views

How do you explain the necessity of “nuke it from orbit” to management and users?

When a machine has been infected with malware, most of us here immediately identify the appropriate action as "nuke it from orbit" - i.e. wipe the system and start over. Unfortunately, this is often ...
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1answer
208 views

uninstall and reinstall after hacking [closed]

My computer has been hacked. If I uninstall and reinstall do I loose my files? The facebook tech tried to sell me a number of pkgs ranged $149-$299 and told me that my account was hacked as was my ...
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2answers
10k views

Advice on what to do after being hacked?

After running a system scan earlier today, I found that my computer had been infected by a trojan horse. My reason for running the scan was because Windows kept shutting down and then recovering. ...
2
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1answer
122 views

Is there a website or free downloadable program to identify and remove malware from an ISO file?

Is there a website or free downloadable program that allows a user to identify and remove multiple types of malware from an ISO file?
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5answers
956 views

How will microvirtualisation change the security field, if at all?

Will this reduce the number of exploitable vulnerabilities in common operating systems? Will the only path in be to exploit the VM itself? Marketing blurb from Bromium's website below. ... ...
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4answers
187 views

Infection I can't shut down, disguises process as scvhost.exe [closed]

A little while ago my home machine got hit and I was able to clean out just about everything except this one process. I can't find the origin but it shows in my process manager as scvhost.net by the ...
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1answer
319 views

Cufon or Prototype as an attack vector for Blackhole exploit kit?

I've been asked to look into the security of a client site that's apparently throwing antiviral messages when visited. Specifics: It's being detected as a Blackhole exploit kit inside of a Cufon ...
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193 views

What are some ways to steal a password/PIN using this system?

http://cups.cs.cmu.edu/soups/2007/posters/p147_lim.pdf Essentially uses an on-screen keypad that does not show the complete keypad numbers at a time. The image is refreshed at the rate of the ...
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3answers
185 views

Where can I find information on existing viruses?

As part of my research, I have created a small malware corpus which I'm conducting my tests against. I would like to categorize them based on Metamorphic / Polymorphic / etc. I am not sure if this is ...
4
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2answers
169 views

What is the state of the Windows Update certificate after Flame?

May 28, The Flame malware is discovered in Iran and by Kaspersky Labs. June 5, Dan Goodin (Ars Technica) points out that Flame had hijacked WindowsUpdate, spreading signed malware through that ...
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1answer
738 views

When and Why does Chrome display malware detection warning?

Google Chrome contains malware detection feature. When user visits some site, browser may display warning that site contains malware. What does it mean that site contains malware? Does it mean that ...
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1answer
356 views

What are the technial and programming requirements for writing a stealth keylogger? [closed]

I'm planning to write/code one such stealth keylogger that would bypass detection by a certain antivirus. (I don't want to name the vendor as I know how good Google queries are against StackExchange ...
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2answers
2k views

How would I go about rebuilding the IAT of a packed executable?

When executables are packed with a tool such as UPX, the real code and data sections are encrypted or obfuscated, then loaded into memory using an injected decrypter stub. This makes static analysis ...
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3answers
2k views

attack/abuse notification email template

I'm building a template for use when sending "abuse" notifications to ISPs, hosting providers, etc., for when attacks originate from their netblock. Are there examples of templates used for this ...
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2answers
532 views

Can a malware jump from a virtual to the physical machine? [duplicate]

Possible Duplicate: How secure are virtual machines really? False sense of security? I found out that malware authors check if the hard drive volume name, or network card MAC matches ...
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2answers
276 views

How does duqu delete itself?

I'm curious to know how Duqu deletes itself. From technical point of view and generally, how can an executable delete itself while is running? Does Duqu use a specific procedure to do this?
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2answers
719 views

Is a VPN the only way to protect against rogue Wifi access points MITM attacks?

Given that it's very easy set up a rogue access point and MITM that connection, is a VPN to a trusted host the only real way to secure my browsing and other TCP/UDP actions? This question relates to ...
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5answers
960 views

Why would a virus writer bother to check to see if a machine is infected before infecting it?

I was looking at the tripartite structure of a virus, and it seems to check to see if a computer is infected before infecting it with the virus. Would this be an attempt to use files that are already ...
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2answers
348 views

How a malware executes remote payload

Let's assume a malware was installed (on a UNIX-based platform) with some social engineering tricks. The original installed code itself may be benign, but the only malicious activity is that the ...
4
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2answers
440 views

What is disk encryption worth? Threat of proprietary Bios, SMM, optionrom, TPM etc?

Supposing there is private/secret data on a machine (i.e a x86 arch) the most reasonable thing to me would be to encrypt this data, so to protect it. I understand that the purpose of ...
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1answer
393 views

In the light of recent information about RarVM, can we still trust RAR files?

See: http://blog.cmpxchg8b.com/2012/09/fun-with-constrained-programming.html https://github.com/taviso/rarvmtools It would seem according to these two sources that rar files can contain custom ...
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2answers
3k views

Detecting reflective DLL injection

In the past few years, malware (and some pen-test tools like Metasploit's meterpreter payload) have begun to use reflective DLL injection (PDF) to load a DLL into the memory of a process. The benefit ...
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4answers
2k views

Are anti-virus companies companies regularly committing software piracy?

As Mikko Hypponen highlighted in a recent tweet, anti-Virus companies collect and store both samples of malicious software and samples of legitimate software: This got me to thinking, what ...
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2answers
338 views

How do AV vendors choose malware names?

If you take a look at McAfee's recent malware page, you'll see that the names in the "Malware name" column aren't very human-readable: Downloader.a!cnz, W32/Autorun.worm.bgh, ...
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2answers
346 views

How can I recognize and find file(s) dropped by malware?

Suppose I am doing malware analysis. How can I recognize if, during the analysis process, a piece of malware dropped a file in my system, and if so, the path of the file? What are the procedures, ...
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1answer
175 views

What authentication threat data exists?

I recently read an article that said there was not much data on which authentication threat vectors were actually being exploited in the real world. Eg what percent of password theft was by ...
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7k views

Malware or buggy software gives Low Disk Space warning

Since a few days, I am getting an alert that in my c drive disk space is low. When I verified, free space in my c drive was decreasing hour by hour and there was a stage when it simply said that 0 mb ...
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2answers
2k views

From a technical standpoint, how does the zero-day Internet Explorer vulnerability discovered in September 2012 work?

I'm looking for an answer that explains the issue from the prespective of a developer/engineer. What is exactly being exploited and why does it work? Please note that I am not looking for ...
2
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1answer
123 views

How did DNSChanger rogue name servers work?

I know DNS changer, changes DNS server with its own Evil DNS server on an infected computer, then the DNS servers point to their own rogue nameservers and the nameservers change the ads on websites ...
4
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1answer
407 views

Is Window's system restoration useful for getting rid of malware?

If your computer has been infected with some kind of malware, could a restoration of the system, using the tool provided by windows, help you getting rid of that malware? We should suppose that it ...
5
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3answers
4k views

Javascript Malware: How does it work, and how can it be mitigated?

I am wondering how malware gets served through Javascript. I've noticed a few illegitimate pop-ups while visiting some financial websites. I wonder how malware exploits work against the application ...
5
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6answers
5k views

Can i get 100% protection from virus by using Deep Freeze?

I have recently installed an application called 'Deep Freeze' that works by "freezing" the state of an operating system and working off delta disks. Rebooting deletes the deltas and reverts back to ...
3
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1answer
560 views

What is known about the sirefef/zeroaccess malware/botnet?

There appears to be an increase in p2p communication among botnets that has been attributed to the sirefef/zeroaccess malware botnet. What is known on this particular threat?
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2answers
773 views

Cohen's problem

Fred Cohen determined theoritically that viral detetction is an undecidable problem. Can anyone provide an intuitive reasoning for that? Background Fred Cohen experimented with computer viruses ...
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1answer
3k views

What can I do to make sure my computer isn't infected with FinSpy?

What steps have been taken by common free software OS distributions to protect against it? What can Windows users do? What ways are there to rid a system of it?
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3answers
4k views

How to manage admin rights for helpdesk staff?

My question is about issuing administrative rights to helpdesk staff in a large Active Directory setting. Helpdesk staff commonly require administrative rights to provide support for end users. I ...
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2answers
9k views

How does Remote Access Trojan / Backdoor Software work?

How does the RAT works? I understand it as once we surf the infected website, browser might download the trojan to our PC automatically. Will it executed and auto install in our computer? I can't ...
6
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2answers
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Can Keyloggers get passwords from Windows 7/8 Logon Screen?

If yes, do you know some examples of Keyloggers capable of perform this? EDIT: I mean when logon in the windows right after power on the PC and/or when locked with Win+L.