Rootkits are programs designed to hide malicious activity on a compromised computer by hiding files, processes or registry entries.

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VirtualBox VM Rootkit Infection

What is the risk of having a host machine infected if a VirtualBox VM running on the host gets infected? Let's assume both run Windows 7.
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Examples of usable rootkits

I'm trying to learn more about rootkits and was hoping to take one and let it loose in a virtual environment. Does anyone know of a rootkit currently available that I can safely use to do this, and ...
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My computer gives a known virus warning and reboots

"Windows must now restart because the Plug and Play service terminated unexpectedly." "Windows must now restart becasue the DCOM Server Process launcher service terminated unexpectedly." ...
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OS X Rootkit Hunter 0.2 - Results - Help interpreting

maybe someone can help me makes sense if these scan results are something to be worried about and if so, how to fix them. I seems that I do not have any viruses (check with Sophos AV) or rootkits, but ...
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EFI partition malware?

I have a 2011 Macbook Pro, running 10.8.2 and was worried that the laptop may have been tampered with while left unattended for a few days while abroad in Asia. I have mounted my EFI partition using: ...
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Is this malware?

I have a machine running Linux Mint (qiana). I noticed it was often slow and when I looked at top I found PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND ...
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is it possible to monitor dll injection events on Windows, such as to detect user mode rootkits?

wikipedia article's section on user mode rootkits is not quite clear about the mechanism of injecting code into running processes. Does this take advantage of normal OS functionality and so could be ...
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What is “.HFS+ Private Directory Data” and why is it SO BIG?

I’m recovering this old disk I accidentally formatted, and stumbled across a hidden and HUGE folder of questionable origin. I can plainly see the folder’s contents thru a data rescue program. By ...
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Rootkit I can not find.

I am running windows 7 ultimate. Chrome Browser. and advance system care. I have run every malware scanner I can find and all the rootkit scanners as well. Nothing seems to be able to find this thing. ...