Cisco Cisco Web Security Appliance S170 사용자 가이드

 describes the different categories of malware the Web Security appliance can block. 

Adware

Adware encompasses all software executables and plug-ins that direct users 
towards products for sale. Some adware applications have separate processes 
that run concurrently and monitor each other, ensuring that the modifications are 
permanent. Some variants enable themselves to run each time the machine is 
started. These programs may also change security settings making it impossible 
for users to make changes to their browser search options, desktop, and other 
system settings. 

Browser Helper 
Object

A browser helper object is a browser plug-in that may perform a variety of 
functions related to serving advertisements or hijacking user settings.

Commercial System 
Monitor

A commercial system monitor is a piece of software with system monitor 
characteristics that can be obtained with a legitimate license through legal 
means.

Dialer

A dialer is a program that utilizes your modem or another type of Internet access 
to connect you to a phone line or a site that causes you to accrue long distance 
charges to which you did not provide your full, meaningful, and informed 
consent.

Generic Spyware

Spyware is a type of malware installed on computers that collects small pieces 
of information about users without their knowledge.

Hijacker

A hijacker modifies system settings or any unwanted changes to a user’s system 
that may direct them to a website or run a program without a user’s full, 
meaningful, and informed consent.

Other Malware

This category is used to catch all other malware and suspicious behavior that 
does not exactly fit in one of the other defined categories.

Phishing URL

A phishing URL is displayed in the browser address bar. In some cases, it 
involves the use of domain names and resembles those of legitimate domains. 
Phishing is a form of online identity theft that employs both social engineering 
and technical subterfuge to steal personal identity data and financial account 
credentials.

PUA

Potentially Unwanted Application. A PUA is an application that is not 
malicious, but which may be considered to be undesirable.

System Monitor

A system monitor encompasses any software that performs one of the following 
actions:

Overtly or covertly records system processes and/or user action.

Makes those records available for retrieval and review at a later time.

Trojan Downloader

A trojan downloader is a Trojan that, after installation, contacts a remote 
host/site and installs packages or affiliates from the remote host. These 
installations usually occur without the user’s knowledge. Additionally, a Trojan 
Downloader’s payload may differ from installation to installation since it 
obtains downloading instructions from the remote host/site.