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After scanning my computer many times using big name anti-virus and malware programs I still had several problems. Finally "Exterminate It" found multiple infections from NetSky. I sent Exterminate It a sample and the next day I received an e-mail instructing me to update and rescan. After following the instructions ZAP the worm/trojan was gone. My computer seems to be completly back to normal now. Good Job Exterminate It!
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Searched as:
Win32.Leasis.B!Trojan
Aliases of Win32.Leasis.B!Trojan (AKA):
[Kaspersky] TrojanSpy.Win32.Tofger.f
[Panda] Trj/Small.H
[Computer Associates] Win32.Leasis.B
How to Remove Win32.Leasis.B!Trojan from Your Computer
You can effectively remove Win32.Leasis.B!Trojan from your computer with Exterminate It!.
After installing the program, run a scan to display a list of the files associated with Win32.Leasis.B!Trojan in the Scan Result screen and remove these files. For information about running scans and removing malware files, see the Exterminate It! Help.
Win32.Leasis.B!Trojan Categorized as:
Trojan
A trojan is a program that is disguised as legitimate software but is designed to carry out some harmful actions on the infected computer.
Unlike viruses and worms, trojans don’t replicate but they can be just as destructive.
These days trojans are very common. Trojans are divided into a number different categories based on their function or type of damage.
Backdoor
Of all trojans, backdoor trojans pose the greatest danger to users’ PCs because they give their authors remote control over infected computers. They are downloaded, installed, and run silently, without the user’s consent or knowledge. Upon installation, backdoor trojans can be instructed to send, receive, execute and delete files, gather and transfer confidential data from the computer, log all activity on the computer, and perform other harmful activities.
Downloader
A type of trojan. The primary purpose of downloaders is to install malicious code on a user’s computer. However, they can enable other malicious uses. For example, they can be used to continually download new versions of malicious code, adware, or “pornware.” They are also used frequently used to exploit the vulnerabilities of Internet Explorer.
Downloaders are typically written in script languages such as VBS or JavaScript.
DoS
A DoS (Denial of Service) attack is designed to disrupt or stop the normal running of a Web site, server, or other network resource. Hackers or malware writers resort to various ways to achieve this. A DoS attack can commonly result in a server being flooded with more network traffic than it is capable of processing. This hinders or prevents the server’s normal operation and sometimes causes its complete failure.
Unlike a DoS attack, a DDoS attack employs multiple PCs. The hacker or malware writer normally uses one infected computer - “master” - to centrally coordinate the attack across other, so-called “zombie”, computers. Typically, the malware writer gains control of both master and zombie computers by exploiting a weakness in an application or the operating system on those computers, in order to install a trojan or other malicious code.
How Did My PC Get Infected with Win32.Leasis.B!Trojan?
The following are the most likely reasons why your computer got infected with Win32.Leasis.B!Trojan:
- Your operating system and Web browser's security settings are too lax.
- You are not following safe Internet surfing and PC practices.
Downloading and Installing Freeware or Shareware
Small-charge or free software applications may come bundled with spyware, adware, or programs like Win32.Leasis.B!Trojan. Sometimes adware is attached to free software to enable the developers to cover the overhead involved in created the software. Spyware frequently piggybacks on free software into your computer to damage it and steal valuable private information.
Using Peer-to-Peer Software
The use of peer-to-peer (P2P) programs or other applications using a shared network exposes your system to the risk of unwittingly downloading infected files, including malicious programs like Win32.Leasis.B!Trojan.
Visiting Questionable Web Sites
When you visit sites with dubious or objectionable content, trojans-including Win32.Leasis.B!Trojan-, spyware, and adware, may well be automatically downloaded and installed onto your computer.
Detecting Win32.Leasis.B!Trojan
The following symptoms signal that your computer is very likely to be infected with Win32.Leasis.B!Trojan.
PC is working very slowly
Win32.Leasis.B!Trojan can seriously slow down your computer. If your PC takes a lot longer than normal to restart or your Internet connection is extremely slow, your computer may well be infected with Win32.Leasis.B!Trojan.
New desktop shortcuts have appeared or the home page has changed
Win32.Leasis.B!Trojan can tamper with your Internet settings or redirect your default home page to unwanted web sites. Win32.Leasis.B!Trojan may even add new shortcuts to your PC desktop.
Annoying popups keep appearing on your PC
Win32.Leasis.B!Trojan may swamp your computer with pestering popup ads, even when you're not connected to the Internet, while secretly tracking your browsing habits and gathering your personal information.
E-mails that you didn't write are being sent from your mailbox
Win32.Leasis.B!Trojan may gain complete control of your mailbox to generate and send e-mail with virus attachments, e-mail hoaxes, spam, and other types of unsolicited e-mail to other people.
Check now if your PC is infected with Win32.Leasis.B!Trojan
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