DOWNLOADER
A program designed to retrieve and install additional files, when run. Most will be configured to retrieve from a designated web or FTP site. Typical payload includes Spyware and Adware stub launchers.
BACKDOOR
a means of access to a computer program that bypasses security mechanisms. A programmer may sometimes install a back door so that the program can be accessed for troubleshooting or other purposes, but an attacker may exploit or use a back door to get unauthorized access to information or install spyware.
ADWARE
Adware is any software application in which advertising banners are displayed while the program is running. The authors of these applications include additional code that delivers the ads, which can be viewed through pop-up windows or through a bar that appears on a computer screen. The justification for adware is that it helps recover programming development cost and helps to hold down the cost for the user. Adware has been criticized for occasionally including code that tracks a user's personal information and passes it on to third parties, without the user's authorization or knowledge.
SPYWARE
Applications that send information from your computer to a third party without your permission or knowledge.
TROJAN
Trojans or Trojan Horses are programs that appear to be innocuous even beneficial, but in fact, are harmful!. Much like the historical trojan horse, these programs appear favorable to you but in reality make your system more vulnerable to attacks and malware. The harmful contents could be anything from a virus to a remote pc or server. Trojans are designed to cause loss or theft of data, and or system destruction. Trojans can be distributed as email attachments, or bundled with other software programs.
KEYLOGGER
A keylogger is any program that records every detail of what is done on your computer down to the keystroke on the keyboard. They record this information in a log and can send that log to a server with your information. Iinformation such as passwords, credit card information, and personal identification numbers if entered into the keyboard while these programs are running.
BHO
Small program that runs automatically every time you start your Internet browser. BHOs are installed on your system by another software program. They are typically installed by toolbar accessories and can track your internet usage and collect other information that is used.
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