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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What would happen if one of the popular Linux repositories is hacked?

Even though most people consider downloading your Linux software from you own distribution's repositories as safe, thinking about the scenario where a repository gets hacked sounds thrilling. What ...
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How would you analyze an image to find out if there are scripts embedded in it?

How would you analyze an image to find out if there are scripts or possible malware embedded in it? What tools / methods to use?
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Malware known to use port knocking to evade detection by network scanners?

Are there any known cases of malware in the wild that utilize port knocking on a backdoor to evade detection by network scanners?
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324 views

How do you visit a link without risking your computer?

I got a link from: http //61.19.247./~naowit/dustin.html (removed the last digits so you don't accidentally click it! (they were 192)), which was masked as a youtube.com link via email. Now I'm not ...
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719 views

Is disabling auto-run enough to protect against malicious code from removable media automatically infecting a machine?

If I block auto-run on a windows machine, is this enough to protect it from malicious code (assuming I don't run any files manually)? Or are there known vulnerabilities that may cause infection?
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Do I really need an Anti-Virus software if I'm careful about where I browse?

A friend told to me the following: I don't use Anti-Virus software at all, I am just careful about where I go and what I click on. I've also heard this from other people as I've repaired their ...
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Am I protected from USB autorun malware on Windows 7?

As far as I know, the autorun.inf problem (the possibility of automatically executing code when a USB stick is plugged in) was solved through Windows Updates for XP, and on 7 it is no longer possible ...
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Can a mobile phone battery contain malware?

It has 3 terminals and is presumably a smart battery. I bought it on ebay recently for $2.74 USD and that included postage from China to Australia. It would normally retail for maybe $40 - $50. The ...
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534 views

Reason for writing Self-Decrypting Virus

What is the rationale behind writing a self-decrypting virus? By this I mean a virus that has it's payload encrypted, decrypts at runtime and runs it. How does this protect the virus from antivirus ...
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412 views

Unknown malware, how to report it and whom to report it to?

I'm a professional Windows system administrator, but I've been caught off-guard (or maybe some malware writer has been very clever) and I caught some unknown malware on my home computer (Windows 7 x64 ...
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7k 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. ...
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1answer
757 views

How to study the packets sent by a keylogger

One of my friends runescape account got hacked through key-logger. He downloaded a runescape gold generator from a file sharing site and tried to use it. I have a strong doubt that it is a key-logger. ...
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208 views

Where to find papers / information about spyware, tracking and cookie problems?

I am right now working on a problem and looking for some papers / information about spyware, tracking and cookie problems. I am no expert in that area, so I lack the knowledge where to find material ...
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Can malware read keychain entries on iOS devices?

Keychain entries of a 3rd party app are protected according their 'protection class'. For example, assigning the class 'kSecAttrAccessibleWhenUnlocked' to a keychain entry means that the entry is only ...
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1answer
198 views

Is there a public database of mutex names that are associated with malware?

I remember seeing something like this a while back, and it'd be incredibly useful for a project I'm working on. Essentially there was a list of mutex names, with a list of malware identifiers (e.g. ...
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1answer
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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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Browsing on a USB OS (Linux) safe from malware?

Let's say I have a computer. It's a personal computer - the one you'd typically find in homes. In this scenario, it's running Windows XP SP3, although it could run 7, Vista, etc. I have a USB drive ...
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3answers
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Nmap indicates that “telepathstart” and “telepathattack” are listening on ports 5010 and 5011 of my Linux box. What are these?

I have a linux box on my network which, according to Nmap, contains two services called telepathstart and telepathattack listening on ports 5010 and 5011. From the same box, I am receiving inbound ...
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Is Buzzdocks a security threat?

A BuzzDock toolbar suddenly appeared in my Chrome browser. I definitely did not install it nor do I remember installing any crapware. It is not unknown to the internet community (Example 1, Example ...
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10k views

Security issues with allowing Dropbox installations on client PC's in our organisation

Does anyone know if there is any good reasons not to allow Dropbox installations on our client PC's? All the PC's have antivirus installed and running. I know it is an additional attack vector to ...
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2answers
301 views

Are there any independent organizations doing (publicly available) IT security research?

When looking up security risks on the net I find that all research being cited (if any is cited) always seems to come from the Anti-Malware companies. (just e.g., this article cites F-secure, AVG and ...
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251 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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146 views

Why Apache runs as unprivileged user?

Apache Web server as a security measure relinquishes its system privileges and runs as a normal unprivileged user before accepting clients over a networks. My Question is How this measure prevents ...
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259 views

How can I circumvent the lack of Java updates?

Just imagine you have a bunch of computers which need Java for some important software and you can't just switch to another vendor because all are using Java in this field of technology. If you start ...
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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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6answers
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How can I prevent viruses/malware from infecting my flash drive?

I've a pen drive that I carry to the college lab . It seems all the systems in lab is infected. I need to be able to write to the drive, so I can't simply write protect it. Everytime I insert a ...
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439 views

Would running VMs inside of VMs be a more secure way to study viruses, etc?

I was reading this post on SuperUser, and it made me wonder about security. I've read somewhere else that some viruses/malware/whatever CAN break outside of a VM... and then infect the host OS. BUT, ...
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Using linux to combat windows flash drive malware?

I just put an old flash drive which i used with a windows machine into my linux. I noticed many files, mostly exes which were never visible in windows (my windows does not hide hidden files and ...
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4answers
399 views

What abuses can an infected webpage do to me if I'm using Chrome and Flash is disabled

as a follow-up to this question Can you get virus just by visiting a website in chrome., I've read these pages: http://www.straightsectalk.com/?p=47 ...
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3answers
152 views

Is it safe to attach a potentially malicious hard drive to a Solaris machine?

We bring in hard drives from un-trusted sources and would like to ensure that they will not contain any harmful content. What kind of risk is there for Solaris? As in, if Solaris is running, and I ...
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1answer
503 views

Google showing spam links on my site

When I search the name of my site on Google, I see site links description which are spammy and not related to my site. Sometimes when I click I get redirect to phishing sites. But I have used many ...
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4answers
523 views

How can Antivirus differentiate between a Trojan and a normal remote desktop application software?

RAT (Remote Access Tool, e.g. Sub7) are considered malicious by Antivirus software. How can it distinguish between such patches and a client application for commercial software like NetSupport ...
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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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What are the best ways to fake a web server

I was wondering if anyone had some insight into the best way to fake a web service response rather than setting up a web server. For instance, while doing dynamic analysis of malware it's useful to ...
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540 views

How could malware like Stuxnet be detected?

Stuxnet and others in this list of state-of-the-art Internet worms had certain features that they were very stealthy in leaking out the information they harvested. Thus it managed to go under the ...
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2answers
545 views

Does the Mebromi BIOS flashing rootkit mean APTs for personal computers are here?

With the recent discovery of the Mebromi BIOS firmware virus/MBR rootkit http://www.theregister.co.uk/2011/09/14/bios_rootkit_discovered/ in the wild are we now actually in the age of Advanced ...
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184 views

Spamming exploits without user detection

So I asked this question because I had thought that attackers would have a way to identify client software, because surely if 100 different exploits were spammed against a users machine they would ...
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2answers
184 views

How serious is a local virus in terms of network security

I work at a company in the U.S. 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 ...
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Any additional security with large blacklisting hosts file?

I run Windows with a pretty hefty c:/windows/system32/drivers/etc/hosts file obtained from http://winhelp2002.mvps.org/hosts.htm. I update this file as regularly as I remember and layer it with ...
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Pursuing a career in Malware Analysis

When I was a kid, I want to become a Malware Analyst and work in a Antivirus company. At that time, I love to try out different antivirus solutions and did a research project on Computer ...
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Malware code added when site viewed externally

Please see second followup at the bottom! (Now with added real malicious code! ...ish) Prompted by this question, I've noticed that my university's student charity organisation has an interesting ...
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Malware nomenclature

If there a generally agreed upon naming convention for types of malware/virus? For example, are there agreed upon terms for virus, trojan, worm and the like? If one exists could someone explain it or ...
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3answers
562 views

What methodologies are useful when reverse-engineering malware / shellcode?

Whilst I'm familiar with reverse engineering techniques from a technical standpoint, I've never found a good methodology for approaching and dissecting malware / shellcode. I've found hundreds of ...
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2answers
185 views

Where can I find good resources on reversing web malware?

I am wondering where I can find a good site with resources on reversing web malware like javascript, flash, html5, and any other stuff that is designed to attack the clients. Does anyone have any ...
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2answers
280 views

Statistics on purposes of viruses/malware

Are there any resources that analyze the purpose or goal or the major viruses/malware out in the wild today? For example, what percentage are used to construct botnets (for DDoS or something else)? ...
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2answers
306 views

Possible to detect packed executable?

A packer is a way of obfuscating an executable program, i.e., transforming so the result is still executable and has the same effect when run, but looks different (so it won't be detected by static ...
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299 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 ...
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Finding spam sending scripts?

What are the tips for finding email spam sending scripts? I ask because usually I hit a wall in shared hosting environments, so I ask this question as a way to get some insight from others. What I ...
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193 views

Process authentication for Linux

Is there any possibility to authenticate a running process in Linux to be sure that this is the original/right one? I know that an Linux operating system is only that secure like the way you use it. ...
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2answers
209 views

Example of malware in the wild?

I'd like to test an application that detects malware on my network. In order to do that, I have a Windows VM set up that I'd like to infect with malware. But for the life of me, I can't seem to find ...