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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How to securely install software on Ubuntu?

How to install a software like Sublime Text on Ubuntu 14.04 LTS and mitigate against a MITM attack? There is a PPA available, but the PPA must be added manually. I don't see any PGP keys or MD5 ...
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1answer
431 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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0answers
31 views

How is Thread local storage used by malware/Virus?

I have been told that code in TLS is run before the entry point of an exe is reached ,so if one puts a breakpoint on this TLS address he/she could debug the behavior of the virus.Can Fiber local ...
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4answers
169 views

Could a compromised WP database cause re-infection without the hacker needing to login into WP?

Is it possible that a compromised WordPress database could somehow be used to re-infect a website? I'm not talking about the hacker decoding user passwords and login into WP. I'm talking about the ...
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2answers
55 views

Malware removal: Iframe injected javascript

My Joomla! website is infected by an iframe injected malware, according to Sucuri SiteCheck: To remove the malware, does it suffice to remove the infected file site/media/system/js/caption.js? Or ...
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1answer
57 views

How to analyze why Chrome downloaded a particular file?

I had a very few Chrome tabs open (see appendix) and other safe websites. Suddenly, without any prompt or action from me, chrome starts downloading the file "NEW!_iPhone7_LEAKED_PHOTO.JPG.exe" which ...
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2answers
110 views

Attacker able to install screen capturing software in Windows 7 guest account

I am operating in a guest account of Windows 7. Could an attacker that got onto my PC through malware I installed, install a video program that records everything I do and send the result back to his ...
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2answers
93 views

Viewing an infected file via FTP and code editor won't infect my PC right?

My apologies this may sound like a paranoid question... Recently my friend's website was infected by malware. With her permission, I FTP into her account to have a look and found some malicious PHP ...
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0answers
19 views

How to find which program is reading a file? [migrated]

I tried delete some file but windows 8.1 reported that access is denied, which other program might read that file, but I don't run any. So it is maybe a harmful program. How can I find out which ...
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2answers
69 views

Connecting trusted and untrusted networks

We have two domains that are isolated. First domain is the Corp LAN, the second is an hostile untrusted network with untrusted clients that could contain malware. Clients on the untrusted network ...
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1answer
44 views

What method could a white-box attacker use to track the deletion of memory / files?

A rather theoretical question: Assuming there is memory with a malware inside it. The malware's goal is to detect if a legit application is about to delete contents of the memory. If recognized, the ...
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2answers
140 views

How did piratebay.se search engine get in Chrome as an “other search engine”

I have an IT client with a user who had piratebay.se/... listed within his Chrome's (v39, 64-bit, OS X, 10.10.1) "Other Search Engine" section. I know a user could manually add it and suspect the ...
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7answers
40k views

How secure are virtual machines really? False sense of security?

I was reading this CompTIA Security+ SYO-201 book, and the author David Prowse claims that: Whichever VM you select, the VM cannot cross the software boundaries set in place. For example, a ...
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1answer
111 views

Where can I download the Sony hack malware (for analysis)? [closed]

I want to analyze the Sony hack Malware as there have been a lot of stories on who is responsible; from the US government implicating North Korea to news articles stating it's an inside job. The fact ...
16
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3answers
985 views

Linux-based Turla trojan

There are several articles describing the newly discovered Linux-based Turla trojan. But basically, all these articles repeat the same, very limited, information. Can anybody provide more details, ...
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2answers
86 views

Only HTTP(S) port is open. Why do I need to worry about unpatched software?

Unpatched software poses no risk by themselves. They're only problematic when someone exploits it. How could malware get into my system if I do have unpatched software in general and I'm connected to ...
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1answer
27 views

Why is there a path to a .pdb file in an exe I am trying to reverse?

My query is ,if I'm seeing a .pdb path in a exe(VC++) what conclusion can I draw from it.Why does the exe have these paths and does it have significance in malware analysis? eg ...
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2answers
79 views

What is the best resource to learn malware analysis? [closed]

I am looking for a resource that helps learn malware analysis. I know about the practical malware analysis book but i am looking for something other than a book. For example a Site or video tutorials. ...
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2answers
97 views

Limitations of botnets [closed]

My question is very closely related to this question but I didn't find my answer there. Specifically, I'm interested in whether the C2 server can modify aspects/properties of the malware and, if so, ...
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1answer
222 views

Exploit SoakSoak injected in Wordpress

I have recently received an attack to my website and Google is warning visitors to not load the page. The malware is located in wp-includes/js/swfobject.js of my Wordpress and I had deleted it but ...
11
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2answers
639 views

Skype called someone and connected to them with no action on my part. What do I do?

This happened to me today, September 12, at about 6pm. Any ideas about what happened, what's going on, and what I should do? I was at home alone with my 2 year old -- I was feeding her dinner. All of ...
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1answer
54 views

Would DLL hijacking work with load-time linking?

I was wondering if DLL hijacking would work with all types of linking or just run-time linking. I hear that malware uses it and wanted to know how it works
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2answers
68 views

AV detection of signed malware

With the massive Sony leaks (including their private keys/certificate), i was wondering: How do major AVs deal with signed binaries? ie: Does it influence their detecting ability of the signed ...
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1answer
121 views

Sticky keys on RDP

A recent report on page 18 states that: [black hats] have even leveraged [systems administration tools] as a means of maintaining additional persistence via setting “sticky keys” for RDP sessions. ...
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0answers
42 views

What is usermode System Call hooking?

Hello was talking to my friends about malware and root-kits techniques and he told me about this method root-kits use called user-mode System Call hooking but he could not explain it to me very well. ...
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6answers
2k views

Becoming a malware analyst?

So, I'm currently 16 and am considering a career in IT when I finish school. The thing that has intrigued me the most while growing up is malware. I've come across it so often and have often had to ...
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2answers
302 views

CSP Reports: Ignoring Client Malware

I'm seeing a lot of Content Security Policy (CSP) reports raised because of client-side malware. Many have "blocked-uri" entries like randomstring.cloudfront.net, something.akamaihd.net and so on. I ...
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1answer
189 views

What does this potentially malicious code do?

While reading a website called 4chan/b/ someone posted this code snippet, i was wondering what it does when executed? it appears to be C code, how harmful is it? This is the full post: Run a live ...
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0answers
112 views

Is the process Wslxrqjet.exe, tagged 'Google Chrome', malicious?

Multiple instances (between 3 and 15) of this of this process Wslxrqjet.exe are running on my Windows 8 system at all times. Windows Task Manager 'Description' field for all instances is "Google ...
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1answer
111 views

Remote UAC bypass and Microsoft does not regard it as security Boundry [closed]

Microsoft has tremendously increased the security of Windows 8.1 but i found a technique to bypass UAC remotely I know that if User belongs to local group Administrators he is not given full Admin ...
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2answers
88 views

Prevent a file from being encrypted

Is it possible to prevent a file from being encrypted, or at least being easily decrypted in case of encryption? For instance; with the Crypto Locker malware attacking users, could you set up a ...
2
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1answer
118 views

what is the difference between dll hooking and dll injection [duplicate]

I am confused and would like to know the difference between DLL injection and DLL hooking? I am familiar with its use in malware and I know that key-loggers use it. I also know that SetWindowsHooKEX ...
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1answer
87 views

How Regin hides running instances of itself?

I have been reading Symantec & Kaspersky Labs analysis of the Regin malware. According to Symantec [Stage 2] can also hide running instances of Stage 1. Once this happens, there are no ...
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6answers
4k views

How do I safely inspect a suspicious email attachment?

I received a pretty blatantly spammy email to my Gmail account. I'm not really sure how it made it through the spam filters, since it has all of the telltale signs. The FROM field is spoofed as ...
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1answer
91 views

what is the difference between dll hijacking and dll injection

I am confused. I would like to know if dll hijacking and dll injection are the same or are they different. I know that some malware use it to do malicious things. thank you in advance
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1answer
59 views

Polymorphic/Metamorphic malware is written on low-level or high-level languages?

As a part of a course I study polymorphic/metamorphic malware. Every single paper and article I've stumbled upon mentions the techniques used by a malware to achieve polymorphism/metamorphism but non ...
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2answers
31 views

What are the available public or commercial feeds for Malware correlated with the vulnerabilities they exploit

To understand the severity of different types of malware, are there any freely available or commercial feeds of malware hashes mapped with public exploits that exploit vulnerabilities listed in ...
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1answer
261 views

Malicious PDF Analysis

I have been analyzing a PDF I suspect to contain malicious content. For the most part, I've always trusted automated tools to determine if a PDF was safe to open. However, my eyes have been opened to ...
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2answers
97 views

How CryptoPHP: Sneaky malware works?

This malware is hidden in pirated themes and plug-ins for CMS . the ‘social.png’ file confirmed we had found the backdoor; as it contained a big blob of obfuscated PHP code . My question is how ...
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6answers
2k views

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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2answers
95 views

Steps after getting hit with malware or browser exploits on Xubuntu

Well, today I was browsing the internet and I suddenly got redirected to a chinese hosted malware site and firefox started going crazy. I checked the url on virustotal with my phone and it found other ...
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2answers
59 views

Any “cleaned” virus that's been successfully re-released?

Anti-malware software has to keep track of all bad software there is. To ease this load, it seems like a good idea to stop looking for threats that's been dead for years. Is there any example of some ...
67
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10answers
6k 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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2answers
72 views

Do common malware compromise recovery partitions?

Just about now a friend of mine got compromised, actually she was compromised by various adware since long ago but she installed something (her browser was hijacked to deliver even more malware) and ...
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1answer
49 views

Strange requests coming from EA4350 Linksys routers

I have had two Linksys EA4350 Routers for a week or so being used internal my network as wireless access points, and all of a sudden I started noticing requests from them once per minute (care of my ...
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1answer
72 views

What is the difference between YARA and CLAMAV?

Can any one explain the difference between YARA and ClamAV ? Are they just two different ways of writing AV or Malware signatures ?
7
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1answer
190 views

Can virtual machines be used to isolate vulnerable software?

I have had a look at most of the previous questions about virtual machines (VMs) and they all appear to be focused on hosting malware in the VM and preventing it breaking out of the VM. What I can’t ...
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3answers
999 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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1answer
109 views

How to identify which storage USB device is BadUSB-free at store?

Are there certain things I can look for when buying a new external hard drive or flash drives to ensure that the one I purchase does not contain BadUSB? Would popular commercial brands, such as ...
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2answers
1k views

Is this a valid Windows update page

In my chrome browser if I google for Windows Update the first hit is windowsupdate.microsoft.com/‎ When I click on it I am redirected to ...