1. What is a computer security risk?
2. Virus
3. Trojan Horse
4. Worms
5. Stand-Alone Utility Programs
6. How can a virus spread through an e-mail message?
7. How does an antivirus program inoculate a program file
?
8. What is a firewall?
.
A virus program is usually able to replicate itself and this too is an
added problem once the virus latches on to a system. Progressively
getting out of control, the virus will attempt to cause as much damage
as possible before it can be detected and eliminated. The replication is
usually intentional and designed to act just like a Trojan, thus causing
the unsuspecting user being caught off guard. If a file that contains a
virus is opened, or copied onto another computer, then the other
computer will also become infected and this process is repeated every
time the file is opened and downloaded onto other systems.
A virus can easily be introduced into a computer system along with
any software program and this is bad news for the users of FTP
otherwise referred to as file transfer protocol. The viruses can also
become a problem when there is referencing done and email
attachments are being used. When the virus enters the computer
system, it can attach itself to, or even replace an existing program.
This of course is not good for the user, who will ultimately open the
attachment or file and cause the virus to be activated.
Malicious Software,Terminology of malicious programme,Malicious programs,Nature of Viruses,Virus Operation-four phases or life cycle of virus,Virus Structure,Types of Viruses,Anti-Virus Software
1. What is a computer security risk?
2. Virus
3. Trojan Horse
4. Worms
5. Stand-Alone Utility Programs
6. How can a virus spread through an e-mail message?
7. How does an antivirus program inoculate a program file
?
8. What is a firewall?
.
A virus program is usually able to replicate itself and this too is an
added problem once the virus latches on to a system. Progressively
getting out of control, the virus will attempt to cause as much damage
as possible before it can be detected and eliminated. The replication is
usually intentional and designed to act just like a Trojan, thus causing
the unsuspecting user being caught off guard. If a file that contains a
virus is opened, or copied onto another computer, then the other
computer will also become infected and this process is repeated every
time the file is opened and downloaded onto other systems.
A virus can easily be introduced into a computer system along with
any software program and this is bad news for the users of FTP
otherwise referred to as file transfer protocol. The viruses can also
become a problem when there is referencing done and email
attachments are being used. When the virus enters the computer
system, it can attach itself to, or even replace an existing program.
This of course is not good for the user, who will ultimately open the
attachment or file and cause the virus to be activated.
Malicious Software,Terminology of malicious programme,Malicious programs,Nature of Viruses,Virus Operation-four phases or life cycle of virus,Virus Structure,Types of Viruses,Anti-Virus Software
What is virus and methods to recover from different types of virusesAjay Sharma
This reports contains information on what is computer virus and how to remove it. What are the efficient ways yo remove virus from computer. What are different types of virus.
What’s ILOVEYOU virus? What did it do? When did it start and how did it stop? Who created it and in what language was it created? Find all answers here!
What is virus and methods to recover from different types of virusesAjay Sharma
This reports contains information on what is computer virus and how to remove it. What are the efficient ways yo remove virus from computer. What are different types of virus.
What’s ILOVEYOU virus? What did it do? When did it start and how did it stop? Who created it and in what language was it created? Find all answers here!
The primary difference between a virus and a worm is that viruses must be triggered by the activation of their host; whereas worms are stand-alone malicious programs that can self-replicate and propagate independently as soon as they have breached the system.
OBJECTIVES
Introduction
What Is Virus?
Why Virus Are Called “Virus”?
How Do Virus Spread?
Virus Operation
How Virus work?
Common Virus Entry Points
Symptoms Of Virus Attack
Types of Computer Virus
Techniques used by Viruses
Anti-Virus Software
Methods used by Antivirus Software
Actions to Prevent Virus Infection
Conclusion
This Presentation explains about Firewalls, Viruses and Antiviruses. I hope this presentation may help you in understanding about Viruses, Firewall and Antiviruses Software.
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
• How SAP Fiori paves the way for using AI in SAP apps
Welocme to ViralQR, your best QR code generator.ViralQR
Welcome to ViralQR, your best QR code generator available on the market!
At ViralQR, we design static and dynamic QR codes. Our mission is to make business operations easier and customer engagement more powerful through the use of QR technology. Be it a small-scale business or a huge enterprise, our easy-to-use platform provides multiple choices that can be tailored according to your company's branding and marketing strategies.
Our Vision
We are here to make the process of creating QR codes easy and smooth, thus enhancing customer interaction and making business more fluid. We very strongly believe in the ability of QR codes to change the world for businesses in their interaction with customers and are set on making that technology accessible and usable far and wide.
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Ever since its inception, we have successfully served many clients by offering QR codes in their marketing, service delivery, and collection of feedback across various industries. Our platform has been recognized for its ease of use and amazing features, which helped a business to make QR codes.
Our Services
At ViralQR, here is a comprehensive suite of services that caters to your very needs:
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Additionally, there is a 14-day free offer to ViralQR, which is an exceptional opportunity for new users to take a feel of this platform. One can easily subscribe from there and experience the full dynamic of using QR codes. The subscription plans are not only meant for business; they are priced very flexibly so that literally every business could afford to benefit from our service.
Why choose us?
ViralQR will provide services for marketing, advertising, catering, retail, and the like. The QR codes can be posted on fliers, packaging, merchandise, and banners, as well as to substitute for cash and cards in a restaurant or coffee shop. With QR codes integrated into your business, improve customer engagement and streamline operations.
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Subscribers of ViralQR receive detailed analytics and tracking tools in light of having a view of the core values of QR code performance. Our analytics dashboard shows aggregate views and unique views, as well as detailed information about each impression, including time, device, browser, and estimated location by city and country.
So, thank you for choosing ViralQR; we have an offer of nothing but the best in terms of QR code services to meet business diversity!
1. VIRUS & ANTI-VIRUS
TOPICS
VIRUSES
WHAT IS VIRUS?
HOW IT INFECTS THE COMPUTER?
WHAT DOES A VIRUS DO?
EXAMPLES OF VIRUSES
WHAT PRECAUTIONS SHOULD BE TAKEN?
ANTIVIRUS
WHAT IS ANTIVIRUS SOFTWARE?
EXAMPLES OF ANTIVIRUS.
2. VIRUS
Viruses are written by computer
criminals.
Virus authors exploit not cleverness but
rather trust.
Most viruses attack PC's via ports that
exist because of trust in the computer
community.
3. TOPIC 1- WHAT IS A VIRUS?
Virus is the generic term that people are
using these days to describe any of
group of willfully destructive computer
programs. A virus is just a worm with a
logic bomb or Trojan horse component.
Virus is a malicious software program
designed to harm computer programs.
Virus means vital information on
resources under siege.
4. TOPIC 2- HOW IT INFECTS THE
COMPUTER?
A simple virus might work in the following way.
1. The virus is introduced to your system either with an
infected .COM or .EXE file, or you boot from a floppy
with an infected boot record. This Trojan is either hidden
in an application program that has been doctored by the
virus creator, or it is the Trojan portion of a virus that is
injected into a program file or the boot record by the
worm portion.
2. Once the program with the Trojan is activated, the
virus is awakened. It installs itself in the operating
system as a logic bomb, waiting for an opportunity to
(1) activate the worm and/or (2) activate the destructive
portion itself.
5. TOPIC 2- HOW IT INFECTS THE
COMPUTER?
3. The logic bomb activates the worm portion whenever an
acceptable host presents itself. Some viruses only replicate
onto floppies from the hard disk. Other viruses infect any
program file that gets activated, whether on the floppy disk or
the hard disk, every time the worm copies itself onto another
disk or program, it activates a built-in counter that keeps track
of how many copies it has made.
4. Eventually, the destructive part of the virus may be
activated, either by an event, like a program, a date occurring
or by a certain number of replications. When the destructive
portion activates, the virus may do something as innocuous as
flashing a message on the screen or as erasing the hard disk. I
say "may be activated," because some "viruses" are just pure
worms-no dangerous part, except for the annoyance of their
propagation.
6. TOPIC 3- What does a virus do?
Virus will infect the system in following ways
Programs used daily are beginning to run more slowly
Disk access appears ill-timed or more frequent than normal.
Program load time increases, not just at peak usage times.
The microcomputer locks up. Normal lock up is from power,
sloppy programs, or hardware incompatibility.
Hardware and software problems appear after something new
is added to the system.
Unusual or humorous error messages appear.
Free disk space decreases dramatically.
Memory-resident programs execute incorrectly or not at all.
7. TOPIC 4-TYPES OF VIRUSES
Parasitic Viruses or Program Infectors
Parasitic viruses begin their dirty work whenever the
executable file to which they are attached is run. They hide in
the memory for just the right moment. They are also called
program inferiors.
Another strain of program infectors is made up of two spilt
programs: one to be the top program that will not register as
a virus when a virus scanner runs, and one that contains an
algorithm that, once the first program is resident, changes
part of the first program's code to make it a virus. It's sort of
like a terrorist who gets through the security checkpoints at
the airport, apparently unarmed, and then converts his
umbrella to a shotgun once he's on the plane.
8. TOPIC 4-TYPES OF VIRUSES
Boot Sector Viruses
Boot sector viruses generally prefer hard drives; a minority,
including the "Stonded" virus, infects floppies. They are loaded
into memory when the PC is booted from a drive which
contains an infected disk. You're probably wondering, "What if
the diskette is not really bootable (i.e. it has no
COMMAND.COM file) and the screen displays the message Non
system disk error?" That doesn't stop anything, unfortunately.
Once the computer boots from the infected disk, it's too latethe PC had to read the boot sector of the floppy to know it
wasn't bootable. During the read, the virus woke up and
sprang into action.
9. TOPIC 4-TYPES OF VIRUSES
Stealth Viruses
Some viruses are said to be "stealth" viruses. A
stealth virus attempts to hide itself by keeping a
copy of the parts of the disk that it infected, before
it infected it. Then, when it detects that a virus
scanner is looking for it, it shows the scanner the
uninfected copy of the file.
10. TOPIC 4-TYPES OF VIRUSES
Macro Viruses
One way of covertly introducing viruses into a computer is
through the use of a MACRO. A macro consists of several
instructions grouped together which then carry out a series of
instructions. Macros are normally very useful tools, that make
working with computer programs easier.
Common examples macro functions are: automatically
inserting the date and time into your document, displaying a
picture in your document, adding a sound to your document,
or automatically calculating something in a spreadsheet. To
perform these functions, the computer has to follow quite a
set of complicated instructions. These are called macros.
11. TOPIC 4-TYPES OF VIRUSES
Trojan Horses
we define a Trojan Horse as a computer file or
program which seems to be useful, needed, or
wanted, but which is, in actual fact, a harmful file or
program. A Trojan horse looks like it is doing
something innocent, such as showing a picture
inside an e-mail or installing a screen saver. But in
fact it is also doing something else - such as erasing
files, or secretly sending information stored on your
computer (such as passwords and other personal
information) to the hacker who wrote it.
12. TOPIC 4-TYPES OF VIRUSES
Email Viruses
An email virus is a virus that is distributed through
the use of emails, most frequently as an attachment
to an email.
When the unsuspecting recipient opens the
attachment to the email, the virus is released onto
his or her computer. Most email viruses consist of a
macro virus that enters the address book on your
computer and then spreads itself to all of your
contacts.
13. TOPIC 4-TYPES OF VIRUSES
Adware - or Advertising-Supported Software
Adware, which is short for “Advertising-Supported
Software” is any software which automatically plays,
displays, or downloads advertising material to a
computer after the software is installed on it.
It is usually included with other software
downloaded from the Internet, especially what you
download for "free". The price you pay is having the
adware installed on your computer. when you run
the program that you downloaded for "free" from
the Internet, it will usually automatically cause adds
to pop up on your screen thereafter.
14. TOPIC 4-TYPES OF VIRUSES
Malware
Harmful software is also referred to as "malicious software."
"Malicious" means "intending to cause harm" and comes from
the Latin word "malus," which means "bad." The term
"malicious software" has also been shortened to the term
"malware." One can define "malware" as "software that is bad
or causes harm."
In earlier times, the only way to give a computer a virus, was
by inserting an infected floppy disk into your computer. Today,
with much more advanced technology, almost every computer
is interconnected to the rest of the world, one way or the
other. On top of all this, advancement in software and
computers have also opened the door to new types of
malware.
15. TOPIC 4-TYPES OF VIRUSES
Spyware
Spyware another form of malware, which does
exactly what its name implies. It spies on you
through the use of your computer. Twenty years
ago only a subject of science fiction, it is today a
hard reality.
Spyware consists of a computer program that collect
personal information or other data stored on your
computer, and then sends it to the originator of the
spyware.
16. TOPIC 5-WHAT PRECAUTIONS
SHOULD BE TAKEN?
Virus protection amounts to common sense computer practice
Backup the system regularly, since some viruses lay dormant
for weeks, months, or even years before activation.
Purchase a good virus checker which includes scanners that
check files for known signatures and monitors that check DOS
calls. The checker compares programs by taking snapshots of
the disk to use for comparison.
Do not download programs from bulletin boards directly to a
network station. Do this only to stand-alone computers.
Do not buy software from unusual vendors, use only
government approved sources.
Make the .com and .exe files read only files.
17. TOPIC 5-WHAT PRECAUTIONS
SHOULD BE TAKEN?
Teach network users why they must comply with policies
regarding file transfer.
TrackLAN users who have more difficulty than others and
those who abuse the system.
Do not let support people use viruses as a convenient excuse
for every problem.
Establish a policy that an observation of irregular behaviour
should be reported immediately to a central network authority
and overlooked. Let a network professional decide whether a
problem exists or not. If a virus is detected, all near by
computers at risk should be checked as well. To minimize
infections, early reporting should be strongly encouraged.
18. TOPIC 6-WHAT IS ANTIVIRUS
SOFTWARE PROGRAM
An anti-virus software program is a computer program
that can be used to scan files to identify and eliminate
computer viruses and other malicious software
(malware).
Anti-virus software typically uses two different
techniques to accomplish this:
Examining files to look for known viruses by means of a
virus dictionary
Identifying suspicious behavior from any computer
program which might indicate infection
19. TOPIC 7- TYPES OF
ANTIVIRUS PROGRAMS
There are two types of anti virus programs. Both do
more or less the same thing, but use different
methods. Both types of programs are constantly on
the lookout for viruses on your computer, but they
do so in different ways.
1. The first one keeps a list of known viruses and virus
types, called "virus definitions." This list of virus
definitions is called a virus library. It constantly looks
through your computer, checking to see if anything
coming into your computer is a virus. It does so by
comparing all things coming in with what it has
stored in its "virus library".
20. TOPIC 7- TYPES OF
ANTIVIRUS PROGRAMS
Any file, document, or program coming into your
computer is inspected and compared to this library to
see if it matches any of the "virus definitions." One
disadvantage of this system is that if a new virus
comes out that is different than the viruses stored in
your library, this type of antivirus program will not
detect it and will allow it onto your computer.
When using such a program, it is important to have a
subscription, and to be connected to the Internet, so
that your virus definitions are constantly updated.
New viruses come out every day. If you choose such
a program, one of the things to check for is how
often the virus definitions are updated. This will play
an important role in keeping your computer safe.
21. TOPIC 7- TYPES OF
ANTIVIRUS PROGRAMS
2. The second type of anti-virus program is called a
HEURISTIC program. "Heuristic" means "learning by
discovery or trail and error." It comes from the Greek
word "heuriskin," which means "to discover".
In other words, the program is capable of discovering
new viruses not already known. It is written in such
a way that it is able to learn and discover new
viruses, without having to refer to a library. This
program will most likely also have a library of virus
definitions. But in addition to detecting already
known viruses, it is able to detect new viruses, and is
therefore a more secure program.
22. TOPIC 7- TYPES OF
ANTIVIRUS PROGRAMS
Some of the common Antivirus programs are as follows:
Kaspersky Antivirus
AVG Free Anti-Virus
Panda Software Anti-Virus Products
Trend Micro
McAfee
Panda Software Anti-Virus Products
Kaspersky Antivirus and Internet Security
AVG Free Anti-Virus and Internet Security
Lava soft
Panda Software Anti-Virus Products
Trend Micro
Norton Antivirus
McAfee
Trend Micro