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rootkit

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Dictionary

rootkit

A type of Trojan that keeps itself, other files, registry keys and network connections hidden from detection. It enables an attacker to have "root" access to the computer, which means it runs at...

Dictionary

Definition: rootkit

A type of Trojan that keeps itself, other files, registry keys and network connections hidden from detection. It enables an attacker to have "root" access to the computer, which means it runs at the lowest level of the machine. A rootkit typically intercepts common API calls. For example, it can intercept requests to a file manager such as Explorer and cause it to keep certain files hidden from display, even reporting false file counts and sizes to the user. Rootkits came from the Unix world and started out as a set of altered utilities such as the ls command, which is used to list file names in the directory (folder).

Legitimate Rootkits?
Rootkits can also be used for what some vendors consider valid purposes. For example, if digital rights management (DRM) software is installed and kept hidden, it can control the use of licensed, copyrighted material and also prevent the user from removing the hidden enforcement program. However, such usage is no more welcomed than a rootkit that does damage or allows spyware to thrive without detection. See Trojan.



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  • First Look: Microsoft Security Essentials

    Microsoft's new anti-malware solution, Microsoft Security Essentials, is now available for free download to Windows XP, Windows Vista, and Windows 7 users.

  • Absolute Software downplays BIOS rootkit claims

    Following a flood of calls from customers, the company behind the LoJack anti-theft service which researchers from Core Security Technologies recently portrait as a security threat, issued a...

    Blog posts | August 5, 2009 2:47pm PDT

  • Researchers find insecure BIOS 'rootkit' pre-loaded in laptops

    LAS VEGAS -- A popular laptop theft-recovery service that ships on notebooks made by HP, Dell, Lenovo, Toshiba, Gateway, Asus and Panasonic is actually a dangerous BIOS rootkit that can be...

    Blog posts | July 30, 2009 1:18pm PDT

  • Microsoft exec rebuts hypervisor security claims

    Microsoft security strategist Steve Riley has answered claims that the company's hypervisor software could be maliciously replaced on PCs without administrators knowing.

    News items | September 5, 2008 7:28am PDT

  • Virtual rootkits not a problem, say researchers

    Hypervisor technology cannot be used to hide rootkits from detection, according to a study by Carnegie Mellon and Stanford researchers.

    News items | October 2, 2007 9:29am PDT

  • Sony pleads innocent in latest rootkit fiasco

    McAfee joins ranks of those criticizing Sony over rootkit-like behavior of device driver used to run its Micro Vault USB.

    News items | August 31, 2007 5:49am PDT

  • Sony + Rootkits = Trouble (again!)

    Somebody over at Sony must have a thing about rootkits because once again the company is caught trying to cloak files on systems using what security company F-Secure describe as "rootkit-like...

    Blog posts | August 29, 2007 2:46am PDT

  • News to know: Sony rootkit redux; Oracle SaaS; Cracking open the Wii

    Notable headlines: Ryan Naraine: Rootkit-like behavior found on Sony fingerprint reader. Firefox or IE? Strange answer to security question. Galleries: How to use Internet Explorer and Firefox...

    Blog posts | August 28, 2007 3:38am PDT

  • Rootkit-like behavior found on Sony fingerprint reader

    Finnish anti-virus vendor F-Secure has found rootkit-like features in a plug-and-play fingerprint reader marketed by Sony.

    Blog posts | August 27, 2007 1:38pm PDT

  • Ten free security utilities you should already be using

    Here's a list of ten free security tools you can and should be using to help protect, disinfect and manage your Windows computer.

  • Blue Pill Project extends VM rootkit cat-and-mouse tussle

    The intellectual cat-and-mouse tussle over hiding and finding virtual machine rootkits has hit a new gear with a team of researchers dismissing the notion of "100 percent undetectable" malware and...

    Blog posts | August 2, 2007 11:11am PDT

  • Let users virtualize Vista because hypervisor rootkits are no threat

    Some day, hypervisor malware will be mooted when every mainstream platform runs virtualized by default, with secured, well-tested hypervisors that prevent hyperjacking from ever taking place....

    Blog posts | July 5, 2007 5:47am PDT

  • Blue Pill hacker challenge update: It's a no-go

    Rutkowska says she is "ready to accept" the challenge but wants her two-person team to be paid $384,000 ($200 a day each for two people working full-time for six months), a demand that has dashed...

    Blog posts | June 29, 2007 9:58am PDT

  • Rutkowska faces '100% undetectable malware' challenge

    At last year's Black Hat security conference, stealth malware researcher Joanna Rutkowska caused a stir with the introduction of Blue Pill, a new technology she claims can create malware that...

    Blog posts | June 27, 2007 5:38pm PDT

  • Photos: Intel's science fair

    The company opened its doors Wednesday for a look at ongoing research projects ranging from a sensor for mobile devices to rootkit detection technology.

  • Microsoft insults our intelligence on Virtualization security

    With the announcement that Microsoft will not ease up on its EULA (End User License Agreement) terms for virtualizing lower-tiered versions of Windows Vista, Microsoft has once again pulled out...

    Blog posts | June 20, 2007 8:04am PDT

  • Image: Web site exploit targets Sony code

    A security firm discovered Web sites designed to exploit security flaws in Sony's rootkit uninstaller program.

  • Image: Web site exploit targets Sony code

    A security firm discovered Web sites designed to exploit security flaws in Sony's rootkit uninstaller program.

  • Sony's Rootkit backfires

    Sony makes up for their digital Pinto - permanently screwing with customers' operating systems - by ... wait for it ... giving away free songs. Sony faced an immediate onslaught of bad...

    Blog posts | January 9, 2006 4:17am PST

  • Rootkits

    Rootkits attack deep within operating systems and make themselves invisible to the anti-spyware and anti-virus software sent out to detect them. Learn how to use rootkit detectors, which use the...

    Videos | July 21, 2005 8:54pm PDT

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