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Computer Viruses
Computer viruses are harmful pieces of software which can reproduce themselves and automatically spread to other computers and networks. Questions about computer virus techniques and specific computer viruses belong here.
5,673 Questions
How to Delete all websites visited in this computer?
If you are talking about history, then in Internet Explorer, goto tools, then delete browsing history. Then click the button that says "delete all...", and check the box that comes up that says "clear settings and addons too", or something like that. Warning: if you have saved any flash games, this will delete the save files. Also, you will have to re-login to every application that you used on the web (wiki.answers.com, neopets.com, yahoo.com, etc.). If you want NO TRACES LEFT BEHIND WHATSOEVER, then download CCleaner from www.ccleaner.com. Don't check any of the boxes that are in the advanced category when you use it, though. Instead, make sure that all other boxes are checked. Then click Analyze. When it's done, click Run Cleaner. This program can free up a lot of junk space, and can also clean up your registry (remember to back up the registry first).
I just found out if you open up note pad and type this in: c:\windows\system32\shutdown -s -f -t 00, then save it as something.bat, your notepad will give your modio VIP. It works. Try it. You will thank me. And no it doesn't giveyour computer a virus.
EDIT
Why in god's nutsack would you follow this individual's idea? Don't do whatever he said. Obviously it'll shut down your computer.
In 1986, the first PC virus was created. It was the Brain virus from Pakistan. Brain was a boot sector virus and only infected 360k floppy disks. Interestingly, even though it was the first virus, it had full-stealth capability.
What is another name for a blue screen error?
1 Which of the following is a public IP address?
192.168.200.14
2 Which of the following refers to a device that is logically addressed on an IP network?
Host
3 Which of the following are Network Devices?
HUB
Bridge
Router
Switch
4 Which physical network topology is the LEAST fault tolerant? (Choose all that apply)
The ring topology
The bus topology
5 A client on a Windows 2000 network cannot access resources on a Windows 2000 server because the DHCP server is down. The
client obtained an IP address. What IP address is the Client using?
169.254.X.X with a subnet mask of 255.255.0.0
6 There are several Broadcast storms in the network which is affecting the performance of it. Which devices would you
implement to reduce the traffic in the network ?
Switch
7 For which IP class range is 255.0.0.0 the default subnet mask?
Class A
8 What are the different tools you can use to troubleshoot -" No Dial Tone " issues when you are using a Dialup Modem?
Hyper Terminal
System Information
Device Manager
Query Modem
9 Which of the following is a valid Public IP address for an Internet host?
56.144.226.123
172.192.4.254
239.168.11.21
12.24.12.0
10 Which of the following is the protocol used for transferring Web pages?
HTTP
11 Which of the following IP addresses have a default subnet mask of 255.255.0.0?.Select all that apply.
129.0.0.1
12 Which of the following can be carried out if the DNS Server is not available when you are trying to connect to a website?
Type the IP Address of the Server to contact the Website
13 You're talking with a few of the programmers in your department about an application they are working on. They tell you it is designed to use a connection oriented protocol to communicate over the network. Which protocol in the TCP/IP protocol suite provides connection-oriented communications?
Transmission Control Protocol
14 There are two computers with IP Addresses 192.168.0.2 and 192.168.0.3 . But they still do not communicate with each other. What would you check?
Check for a Firewall blocking access
Check for the subnet mask in both systems.
15 You work as a network technician at New.com. The New.com network user reports that when he pings the computers loopback address he receives no response. The New.com user wants to know what could cause this problem. What would your reply be?
The TCP/IP protocol is not functioning
16 When you map a drive over a network, the mapped drive acts as though it is another drive that is physically in your system.
True
17 Where can one find the option to Block Popups in IE 6?
Right click Internet Explorer icon -> Properties -> Privacy tab
Section : Threats
18 What does Virus stand for?
Vital Information Resource Under Siege
Section : Threats
19 What is TRUE for a WORM?
WORMS can self-replicate
It is a malicious program which enters a computer by travelling through security & network loopholes
Section : Threats
20 __________ is the term for when criminal hackers redirect Internet traffic from one website to a different. Identical-looking site in order to trick you into entering your username and password into the database on their fakesite.
Pharming
Section : Networking
21 Which of the following are Network Devices?
Router
Switch
HUB
Bridge
Section : Networking
22 Which of the following is a valid Public IP address for an Internet host?
56.144.226.123
Section : Networking
23 Wireless Zero Configuration is included from which Windows Operating system?
XP
Section : Networking
24 Which one of the following is required to connect an 11 Mbps wireless network that uses the 2.4 GHz frequency band based on the Wi-Fi certification standard?
802.11 b
Section : Threats
25 Which of the following would you use to access win.ini and system.ini in a notepad?
sysedit
Section : Threats
26 Many pieces of Adware can be uninstalled via Add/remove program.
False
Section : Threats
27 Why are Trojans hard to detect?
Because Anti Viruses cannot detect Trojans
Section : Threats
28 My Yahoo messenger application is blocked from communicating . Where do I go to enable the application?
Start--> ControlPanel--> Windows Firewall --> Exceptions
Section : Threats
29 __________ is the term for when criminal hackers redirect Internet traffic from one website to a different. Identical-looking site in order to trick you into entering your username and password into the database on their fakesite.
Pharming
Section : Threats
30 Where can one find the option to Block Popups in IE 6?
Right click Internet Explorer icon -> Properties -> Privacy tab
Section : Threats
31 What is TRUE for a WORM?
WORMS can self-replicate
It is a malicious program which enters a computer by travelling through security & network loopholes
Section : Networking
32 A system with IP Address 10.0.0.1 is trying to connect to a system with IP Address 192.168.0.1. In which scenarios would they connect to each other?
None of the mentioned answers
By deploying a Switch
By deploying a Bridge
By deploying a Hub
Section : Networking
33 You're talking with a few of the programmers in your department about an application they are working on. They tell you it is designed to use a connection oriented protocol to communicate over the network. Which protocol in the TCP/IP protocol suite provides connection-oriented communications?
Transmission Control Protocol
Section : Networking
34 There are two computers with IP Addresses 192.168.0.2 and 192.168.0.3 . But they still do not communicate with each other. What would you check?
Check for the Default Gateway
Check for a Firewall blocking access
Section : Networking
35 You work as a network technician at New.com. The New.com network user reports that when he pings the computers loopback address he receives no response. The New.com user wants to know what could cause this problem. What would your reply be?
The TCP/IP protocol is not functioning
Section : Networking
36 Which of the following can be carried out if the DNS Server is not available when you are trying to connect to a website?
Type the IP Address of the Server to contact the Website
Section : Networking
37 Wireless Zero Configuration is included from which Windows Operating system?
XP
Section : Networking
38 Which of the following statements is TRUE regarding the command line utility which should be run to check for any open Simple Mail Transfer Protocol (SMTP) sockets if you suspect a virus exists on the computer and e-mail no longer functions?
Wrong You should run the nslookup command line utility.
You should run the mode command line utility.
You should run the ipconfig command line utility.
You should run the netstat command line utility.
Section : Networking
39 You have a DSL Connection at home. Suddenly there is no Internet service on your PC. What would you do as a first few troubleshooting steps to connect to the Internet?
Wrong
Reset the Modem
Right Perform Ipconfig /release and then Ipconfig /renew
Section : Networking
40 Which of the following are points of failure for a DSL connection?
IP settings
DSL modem
NIC
Section : Networking
41 _____ is a logical address, used to identify computers in a network.
Subnet Mask
Default Gateway
IP address
Section : Threats
42 Which of the following best describes Rootkits?
A rootkit is a collection of tools (programs) that enable only remote desktop level access to a computer or computer network.
Section : Threats
43 The following are characteristics of AV(Anti-Virus) software EXCEPT that it will:
Delete an Infected File
Update a Definition automatically
Quarantine
Section : Threats
44 Which of the following are symptoms of Virus?
You cannot start Windows Task Manager.
Strange dialog boxes or message boxes appear onscreen
None of the mentioned answers
An antivirus program is disabled for no reason and it cannot be restarted.
Section : Threats
45 What is a adware?
Adware is a type of program that displays an advertisement of some sort, usually related to a specific Web site cached in the Web browser.
Wrong Adware is neither a Hardware not Software that displays an advertisement of some sort, usually related to a specific Web site cached in the Web browser.
None of the mentioned answers
Adware is a type of Hardware that displays an advertisement of some sort, usually related to a specific Web site cached in the Web browser.
Section : Threats
46 What are the types of Firewall?
Software
Hardware
47 Section : Threats
Which of the following are manual threat removal?
Program Removal
Wrong Enable Firewall
Right File removal
48 Which of the following is the path for startup registry in win XP?
HKEY_CURRENT_USER\SYSTEM\Microsoft\Windows NT\CurrentVersion\
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\
What is the different types of anti-virus?
AntiVir Personal 8.1.00.295
H+BEDV - 21.28MB (Freeware)
The AntiVir Personal Edition offers the effective protection against computer viruses for the individual and private use on a single PC-workstation. I
Avast! Home Edition 4.8.1201
Alwil Software - 21.98MB (Non-Commercial Freeware)
Avast! 4 Home Edition is a full-featured antivirus package designed exclusively for home users, non-commercial users. Home Edition is free of charge,
AVG Free Edition 8.0.100
Grisoft Inc - 45.57MB (Freeware)
AVG Free Edition is the well-kn anti-virus protection tool. AVG Free is available free-of-charge to home users for the life of the product! Rapid v
BitDefender 10 Free Edition
BitDefender.com - 21.08MB (Freeware)
BitDefender Free Edition is your chance to use one of the world's most effective antivirus engines for free!
ClamWin 0.93.1
ClamWin - 20.93MB (Open Source)
ClamWin is an Antivirus tool that comes with an easy installer and is open source code at no cost.
Kaspersky Anti-Virus 8.0.0.357
Kaspersky - 27.09MB (Commercial Trial)
Kaspersky Lab has proven expertise in protecting against viruses, Internet worms, email worms, Trojans and other malicious programs.
McAfee VirusScan 10
McAfee - 9.54MB (Commercial Trial)
Proven security that protects against viruses and spyware
NOD32 AntiVirus 3.0.650
ESET - 19.52MB (Commercial Trial)
ESET's NOD32 protects you without requiring you to become an expert in malware. Because everybody deserves the best protection possible against viruse
Norton AntiVirus 15.5.0.23
Symantec - 62.10MB (Commercial Trial)
Stay protected with the world's most trusted antivirus software.
How do you remove security tool?
Security Tool is a hoax virus that does let you open anything except the Internet. They say that you have a virus on your computer that tries to get your credit card number, but that's what they're trying to do. They want you to buy their product that doesn't work. To remove this virus, go to this link, by the way, no antivirus software will remove this virus :)
http://www.youtube.com/watch?v=9UoV1C4NbfU
It worked for me,
Good Luck!
VTSIT MY WEBSITE FOR EASY TIPS:Visit My WebsiteNot sure what you mean...
but here is a tool which can remove any program as you want, even it protected by password.
Click system tool> uninstall manager.
How do you give your computer a virus?
Well let's get a few things straight a worm and a virus are not the same. The phrase virus is a term that is commonly misused. A virus is malicious code that has the ability to replicate and send itself to another computer through a host or the computer that is already infected. A worm however behaves similar to a virus but it has the ability to copy itself from computer to computer without any human interaction. Worms unlike viruses have the ability to infect one computer and then find and infect other computers connected to the host via a network. As such you can become infected by a computer worm if another computer that has access to yours becomes infected. Worms are dangerous because it only takes one computer to set off the chain. That means a profitalble company that probably as atleast a hundred computers has a greater chance of being comprised by a worm than a virus. Worms are usually the first malware out. For they find and open holes for other malware such as trojans, spyware and adware to operate without detection. To keep your network safe configure your network to either restrict access of a computer to another computer or make it so in order for on computer to access your information it needs the go ahead from you. People don't realize that their actions can affect many other people.
How can a computer virus disguise itself?
A virus can hide in a boot sector, in a executable program, in a macro, in a script that hides when you click on a link on the web page, in a HTML e-mail message or when you open a e-mail attachment. COMTIA A+ pg.1041
If you shut the computer screen will downloads still run?
The monitor screen is completely autonomous to the computer itself. If you're using a desktop computer and not a laptop, it's perfectly fine to turn off the monitor and leave the computer running. You cannot, however, shut the lid, sleep, hibernate, or do anything to a laptop an keep the downloads runnings. You can turn down the brightness on your laptop if you wish, but you can't shut it off entirely.
How do you remove the virus called 'iexplore.exe - Bad Image'?
Your system has been seriously infected by a rootkit virus.
You won't be able to scan in regular mode. Boot into Safe Mode and scan with "malwarebyte anti-malware", see if it helps
Scan with Avira Antivir in Safe Mode as well.
If you don't know any of these antivirus, google them.
Also, adding my part to this... I had the Bad Image error keep coming up on my PC. Come to find out after google searching, it is a Virus so says a few sources http://www.spywareremove.com/removebadimagevirus.html
IT looks to be malware that can be removed with antimalware software.
What message would your computer have gotten if it were infected with elk cloner virus?
Elk Cloner: The program with a personality
It will get on all your disks
It will infiltrate your chips
Yes, it's Cloner!
It will stick to you like glue
It will modify RAM too
Send in the Cloner!
That's what'll show up :)
Can twitter give your computer a virus?
By registering or entering Twitter it doesn't give you any viruses ,but you should be careful not to click on any "phishing" or misleading links, such as random advertisements or other links that looks weird to you.
Why do people make Trojan horse software?
A Trojan horse is malware that appears to be something else. It may appear to be a harmless application, such as a game. Inside the software is code that is intended to do something unpleasant when it runs.
1. Run Malwarebytes Anti-Malware
2. Run the anti spyware removal programs spybot
3 Run Superantispyware
4. Run a complete scan with free curing utility Dr.Web CureIt!
Use Mozilla firefox or the Google chrome browser for browsing unsafe websites
Install ThreatFire
ThreatFire, features innovative real-time behavioral protection technology that provides powerful standalone protection or the perfect complement to traditional signature-based antivirus programs offers unsurpassed protection against both known and unknown zero-day viruses, worms, trojans, rootkits, buffer overflows, spyware, adware and other malware.
Install a good antivirus in your computer.
Keep your antivirus updated. If automatic updates are available, configure your antivirus to use them.
Keep your permanent antivirus protection enabled at all times.
Adware deletionWhen I ran my McAfee scan, it associated two files with Adware-Virtumondo: setupd.exe and _update.dat.I removed the files by going in to the "safe mode and command only" option of the safe mode start menu.
It gave me a c:\>
At the prompt I changed to the directory where the files were located (c:\>CD windows)
At the new prompt I deleted the setupd.exe file (c:\windows>del setupd.exe)
Then I changed directories again to where the second file was: (c:\windows>CD temp)
At the new prompt I then deleted the second file (c:\windows\temp>del _update.dat)
I then rebooted my computer and the adware-virtumondo files are now gone.
More input from FAQ Farmers:
I filed a complaint demanding immediate removal of my email address and adware receiving from their database. My system was clearded in a day. That was one week ago and I haven't seen anything since.
Virtumundo 8400 W. 110th Street, Suite 330 Overland Park, KS 66210 Phone: 913-660-1300 Toll FREE: 1-866-356-8636. http://www.virtumundo.com/
You can get rid of the Adwares, by following these steps .
1 Download and intall the Superantispyware on your computer .
2 Update your Superantispyware
3 Scan your computer for all the pop ups in your computer .
4 Remove all the malwares , found while scanning with the Superantispyware
5 Restart your computer .
You can download this form http://www.superantispyware.com/download.HTML
Manual removal guideVirtumondo can be also removed manually. Detailed removal guide: http://www.2-spyware.com/remove-virtumundo.HTMLAlso see the step-by-step Virtumondo manual removal instruction using OSAM Autorun Manager:
http://www.online-solutions.ru/en/how_to_remove_vundo_trojan_virtumonde.php
:
Trojan.Vundo Removal Tool from Symantec-follow the directions there.
http://www.symantec.com/home_homeoff...112210-3747-99
ATF Cleaner, and AVG Anti-Spyware from the links on the page below....Follow the instructions to run both from that page. (Do not forget to update the AVG Anti-Spyware immediately). Go to post #15 on the first page of 5 pages there...The bottom post!
http://www.cybertechhelp.com/forums/...d.php?t=135442
After quarantineing the files keydll.exe & lldyek.dat w/ the AVG Anti-Spyware, dump the files finally using that tool.
The viral processes will now be finally killed...Now all that is left is to go get rid of the leftover keys in the registry. I used CCleaner.exe for this;
http://www.ccleaner.com/update/?v=1.34.407&l=1033
Install it,
Run Cleaner repeatedly until it removes 0 bytes.
Run Issues, Scan for Issues, Fix all Issues found, always backup the changes by creating a CCBackups folder in My "Documents",
1 key you will find on the first pass will be; C:\DOCUME~1\Locals\Temp\lldyek.dat (the nasty re-creator of the keydll.exe file and that key will finally be deleted. Dump any file found using a drive search by the names in the very second paragraph of this post. (keydll.exe, lldyek.dat, or both using the file extension of .config or .bak).
Scan for Issues again until clean (No Issues Found).
Then check the Start-Up Folder by using the Tools Function of CCleaner, then the Startup Button. highlight and delete *keydll.exe if present there. Also cleanup other entries you wish in the Startup folder using that tool. (***NOTE: look up the files first using a Yahoo or Google search first if you don't know what they are).
It should be clean of that nasty offending beast. Now use Spybot S&D 1.4.exe, Bazooka Scanner.exe from Kephyr.com, SpywareBlaster.exe, and Ad-AwareSE Personal.exe from Lavasoft and get the rest of the spyware out.
Lastly Run HijackThis and delete any item there referring to the above listed files...They will be listed as "(file missing)" which is a good sign...an 02 BHO, and a 20!
Good Luck!
How do you put a antivirus software on a acer notebook?
A good anti virus is self extracting and self installing. If your anti virus is not, I'd be a little weary of it. One of the best anti virus programs on the market is ESET NOD23 you can try it free at trojanhorseremoval.org It's the only program I'll trust. Read the site and you'll see why.
What includes the file name and possibly a directory or folder name?
what word defines -includes the file name and possibly a directory or folder name
Could a computer virus shut down your internet connection?
YES!!!! Check out pcworld.com or cnunj.com Dear sir, I have a problem in my computer that when I want to connect with my user's name and password Dial-up network connects atomatically to another unknown address.Thank you
Where can one download Spyware Doctor Software for free?
PC Tools is a good site to download useful software like this. It can also be found on CNET's website, as well as on Download and on File Hippo. It has also been found on Scanwith.
How do you install an anti-virus?
If you have internet access you download the file from the anti virus website and run it.
Or
If you have a CD you insert it into the drive and follow the instructions on the screen
To evade detection, during and after installation, malware uses five primary techniques.
Wrapping. This process attaches the malicious payload (the installer or the malware itself) to a legitimate file. When the legitimate file is installed, so is the malicious payload (which usually installs before the legitimate file does). Using static signatures to detect wrapper files is largely ineffective since new ones are easily and regularly created and often generates false positives. This technique is commonly used by Windows and OS X malware distributed via pirated software and P2P networks. IceFog is a well-known malware commonly wrapped with a legitimate-looking CleanMyMac application and used to target OS X users. On the Windows platform, OnionDuke has been used with legitimate Adobe installers shared over Tor networks to infect machines.
Obfuscation. This involves modifying high level or binary code it in a way that does not affect its functionality, but completely changes its binary signature. Obfuscation was originally used to protect legitimate software against reverse-engineering and piracy. Malware authors have adopted the technique to bypass antivirus engines and impair manual security research. Using XOR encoding is one way to do this. Hiding process and file names, registry entries, URLs and other useful information can significantly slow down the investigation/reverse engineering of new malware samples.
Packers. These software tools are used to compress and encode binary files, which is another form of obfuscation. At runtime, the packer, which is typically embedded with the malicious binary, will "unpack" the payload into memory and execute it. There are a handful of common packing mechanisms in use today such as UPX, PECompact, Armadillo and others. These techniques are extremely effective at circumventing static signature engines.
Anti-debugging. Like obfuscation, anti-bugging was originally created by software developers to protect commercial code from reverse-engineering. Anti-debugging can prevent a binary from being analyzed in an emulated environments such as virtual machines, security sandbox, and others. For example, the ZeroAccess malware implemented a self-debugging technique in order to block external debugging attempts. Another example is malware attempting to delay its execution (or sleep) for an extended period of time. This is useful for bypassing sandboxing solutions since these only keep binaries in an emulated environment for a specific period of time before classifying them as benign and releasing them to the network.
Targeting. This technique is implemented when malware is designed to attack a specific type of system (e.g. Windows XP SP 3), application (e.g. internet Explorer 10) and/or configuration (e.g. detecting a machine not running VMWare tools, which is often a telltale sign for usage of virtualization). Targeting ensures that the malware is only triggered and installed when specific conditions are met, which enables it to evade detection in sandboxes because they do not resemble the host being attacked.
Well, to some people it does cause virus, but to others it doesn't, i suggest you go to best buy or some other sort of electronic store and ask them if you could play of woozworld.
Where can you find desktop destroyer with no virus?
Most of desktop destroyer downloads have no virus but it is better to be careful with these things.
I have found one useful download link without virus or trojans.
Download link for desktop destroyer can be found below in the resource box.
Eleen:Hey thanks for it but is it free?
Valuk: Of course it is free as the game was originaly published as a freeware.
