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Kernel Patch Protection
Kernel Patch Protection (KPP), informally known as PatchGuard, is a feature of 64-bit (x64) editions of Microsoft Windows that prevents patching the kernel. It was first introduced in 2005 with the x64 editions of Windows XP and Windows Server 2003 Service Pack 1. "Patching the kernel" refers to unsupported modification of the central component or kernel of the Windows operating system. Such modification has never been supported by Microsoft because, according to Microsoft, it can greatly reduce system security, reliability, and performance. Although Microsoft does not recommend it, it is possible to patch the kernel on x86 editions of Windows; however, with the x64 editions of Windows, Microsoft chose to implement additional protection and technical barriers to kernel patching. Since patching the kernel is possible in 32-bit (x86) editions of Windows, several antivirus software developers use kernel patching to implement antivirus and other security services. These techniques wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kernel Layout
Kernel may refer to: Computing * Kernel (operating system), the central component of most operating systems * Kernel (image processing), a matrix used for image convolution * Compute kernel, in GPGPU programming * Kernel method, in machine learning * Kernelization, a technique for designing efficient algorithms ** Kernel, a routine that is executed in a vectorized loop, for example in general-purpose computing on graphics processing units *KERNAL, the Commodore operating system Mathematics Objects * Kernel (algebra), a general concept that includes: ** Kernel (linear algebra) or null space, a set of vectors mapped to the zero vector ** Kernel (category theory), a generalization of the kernel of a homomorphism ** Kernel (set theory), an equivalence relation: partition by image under a function ** Difference kernel, a binary equalizer: the kernel of the difference of two functions Functions * Kernel (geometry), the set of points within a polygon from which the whole polygon boundar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Global Descriptor Table
The Global Descriptor Table (GDT) is a data structure used by Intel x86-family processors starting with the 80286 in order to define the characteristics of the various memory areas used during program execution, including the base address, the size, and access privileges like executability and writability. These memory areas are called segments in Intel terminology. Global Descriptor Table The GDT can hold things other than segment descriptors as well. Every 8-byte entry in the GDT is a descriptor, but these descriptors can be references not only to memory segments but also to Task State Segment (TSS), Local Descriptor Table (LDT), or Call Gate structures in memory. The last ones, Call Gates, are particularly important for transferring control between x86 privilege levels although this mechanism is not used on most modern operating systems. There is also a Local Descriptor Table (LDT). Multiple LDTs can be defined in the GDT, but only one is current at any one time: usually as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PC World (magazine)
''PC World'' (stylized as PCWorld) is a global computer magazine published monthly by IDG. Since 2013, it has been an online only publication. It offers advice on various aspects of PCs and related items, the Internet, and other personal technology products and services. In each publication, ''PC World'' reviews and tests hardware and software products from a variety of manufacturers, as well as other technology related devices such as still and video cameras, audio devices and televisions. The current editor of ''PC World'' is Jon Phillips, formerly of ''Wired''. In August 2012, he replaced Steve Fox, who had been editorial director since the December 2008 issue of the magazine. Fox replaced the magazine's veteran editor Harry McCracken, who resigned that spring, after some rocky times, including quitting and being rehired over editorial control issues in 2007. ''PC World'' is published under other names such as PC Advisor and PC Welt in some countries. ''PC World''s company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaspersky Lab
Kaspersky Lab (; Russian: Лаборатория Касперского, tr. ''Laboratoriya Kasperskogo'') is a Russian multinational cybersecurity and anti-virus provider headquartered in Moscow, Russia, and operated by a holding company in the United Kingdom. It was founded in 1997 by Eugene Kaspersky, Natalya Kaspersky, and Alexey De-Monderik; Eugene Kaspersky is currently the CEO. Kaspersky Lab develops and sells antivirus, internet security, password management, endpoint security, and other cybersecurity products and services. Kaspersky expanded abroad from 2005 to 2010 and grew to $704 million in annual revenues by 2020, up 8% from 2016, though annual revenues were down 8% in North America due to U.S. government security concerns. As of 2016, the software has about 400 million users and has the largest market-share of cybersecurity software vendors in Europe. Kaspersky Lab ranks fourth in the global ranking of antivirus vendors by revenue. It was the first Russian company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norton AntiVirus
Norton AntiVirus is an anti-computer virus, virus or anti-malware software product founded by Peter Norton, developed and distributed by Gen Digital since 1990 as part of its Norton (Symantec), Norton family of computer security products. It uses Signature based detection, signatures and Antivirus software#Heuristics, heuristics to identify computer virus, viruses. Other features included in it are e-mail spam filtering and phishing protection. Symantec distributes the product as a download, a Software release life cycle#Box copy, box copy, and as Original equipment manufacturer#Computers, OEM software. Norton AntiVirus and Norton Internet Security, a related product, held a 61% US retail market share for security suites as of the first half of 2007. Competitors, in terms of market share in this study, include antivirus products from CA, Inc., CA, Trend Micro, and Kaspersky Lab. Norton AntiVirus runs on Microsoft Windows, Linux, and macOS. Windows 7 support was in development fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NortonLifeLock
Gen Digital Inc. (formerly Symantec Corporation and NortonLifeLock) is a multinational software company co-headquartered in Tempe, Arizona and Prague, Czech Republic. The company provides cybersecurity software and services. Gen is a Fortune 500 company and a member of the S&P 500 stock-market index. The company also has development centers in Pune, Chennai and Bangalore. Its portfolio includes Norton, Avast, LifeLock, Avira, AVG, ReputationDefender, and CCleaner. On October 9, 2014, Symantec declared it would split into two independent publicly traded companies by the end of 2015. One company would focus on security, the other on information management. On January 29, 2016, Symantec sold its information-management subsidiary, named Veritas Technologies, and which Symantec had acquired in 2004, to The Carlyle Group. On August 9, 2019, Broadcom Inc. announced they would be acquiring the Enterprise Security software division of Symantec for $10.7 billion, and the company became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McAfee VirusScan
McAfee VirusScan is an antivirus software created and maintained by McAfee (formerly known as Intel Security, and Network Associates prior to that). Originally marketed as a standalone product, it has been bundled with McAfee LiveSafe, McAfee AntiVirus Plus, McAfee Total Protection and McAfee Gamer Security since 2010. McAfee LiveSafe integrates antivirus, firewall and anti-spyware/anti- ransomware capabilities. In 2006, British telecom company BSkyB started offering Sky Broadband customers a branded version of VirusScan for free upon broadband modem installation. VirusScan Enterprise McAfee also produces an enterprise-level product named VirusScan Enterprise: McAfee has designed this for use on larger networks designed to make management of antivirus software on multiple computers easier. Unlike the home-user edition, the Enterprise edition consists of a client application for networked computers, and a server application, which the system installs updates and configures setti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McAfee
McAfee Corp. ( ), formerly known as McAfee Associates, Inc. from 1987 to 1997 and 2004 to 2014, Network Associates Inc. from 1997 to 2004, and Intel Security Group from 2014 to 2017, is an American global computer security software company headquartered in San Jose, California. The company was purchased by Intel in February 2011, and became part of the Intel Security division. In 2017, Intel had a strategic deal with TPG Capital and converted Intel Security into a joint venture between both companies called McAfee. Thoma Bravo took a minority stake in the new company, and Intel retained a 49% stake. The owners took McAfee public on the NASDAQ in 2020, and in 2022 an investor group led by Advent International Corporation took it private again. History 1987–1999 The company was founded in 1987 as McAfee Associates, named for its founder John McAfee, who resigned from the company in 1994. McAfee was incorporated in the state of Delaware in 1992. In 1993, McAfee stepped do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rootkit
A rootkit is a collection of computer software, typically malicious, designed to enable access to a computer or an area of its software that is not otherwise allowed (for example, to an unauthorized user) and often masks its existence or the existence of other software. The term ''rootkit'' is a compound of "root" (the traditional name of the privileged account on Unix-like operating systems) and the word "kit" (which refers to the software components that implement the tool). The term "rootkit" has negative connotations through its association with malware. Rootkit installation can be automated, or an attacker can install it after having obtained root or administrator access. Obtaining this access is a result of direct attack on a system, i.e. exploiting a vulnerability (such as privilege escalation) or a password (obtained by cracking or social engineering tactics like "phishing"). Once installed, it becomes possible to hide the intrusion as well as to maintain privileged acc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Security Through Obscurity
Security through obscurity (or security by obscurity) is the reliance in security engineering on design or implementation secrecy as the main method of providing security to a system or component. History An early opponent of security through obscurity was the locksmith Alfred Charles Hobbs, who in 1851 demonstrated to the public how state-of-the-art locks could be picked. In response to concerns that exposing security flaws in the design of locks could make them more vulnerable to criminals, he said: "Rogues are very keen in their profession, and know already much more than we can teach them." There is scant formal literature on the issue of security through obscurity. Books on security engineering cite Kerckhoffs' doctrine from 1883, if they cite anything at all. For example, in a discussion about secrecy and openness in Nuclear Command and Control: e benefits of reducing the likelihood of an accidental war were considered to outweigh the possible benefits of secrecy. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obfuscated Code
In software development, obfuscation is the act of creating source or machine code that is difficult for humans or computers to understand. Like obfuscation in natural language, it may use needlessly roundabout expressions to compose statements. Programmers may deliberately obfuscate code to conceal its purpose (security through obscurity) or its logic or implicit values embedded in it, primarily, in order to prevent tampering, deter reverse engineering, or even to create a puzzle or recreational challenge for someone reading the source code. This can be done manually or by using an automated tool, the latter being the preferred technique in industry. Overview The architecture and characteristics of some languages may make them easier to obfuscate than others. C, C++, and the Perl programming language are some examples of languages easy to obfuscate. Haskell is also quite obfuscatable despite being quite different in structure. The properties that make a language obfuscatable ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
