Rogue security
software, also known as scareware, is software that appears
to be beneficial from a security perspective but provides limited
or no security, generates erroneous or misleading alerts, or
attempts to lure users into participating in fraudulent transactions.
Rogue security
software designers create legitimate looking pop-up windows
that advertise security update software. These windows might
appear on your screen while you surf the Web.
The "updates"
or "alerts" in the pop-up windows call for you to take some
sort of action, such as clicking to install the software, accept
recommended updates, or remove unwanted viruses or spyware.
When you click, the rogue security software downloads to your
computer.
Rogue security
software might also appear in the list of search results when
you are searching for trustworthy antispyware software, so it
is important to protect your computer.
Rogue security
software might report a virus, even though your computer is
actually clean. The software might also fail to report viruses
when your computer is infected. Inversely, sometimes, when you
download rogue security software, it will install a virus or
other malicious software on your computer so that the software
has something to detect.Some rogue
security software might also.
- Lure you
into a fraudulent transaction (for example, upgrading to
a non-existent paid version of a program).
- Use social
engineering to steal your personal information.
- Install
malware that can go undetected as it steals your data.
- Launch
pop-up windows with false or misleading alerts.
- Slow your
computer or corrupt files.
- Disable
Windows updates or disable updates to legitimate antivirus
software.
- Prevent
you from visiting antivirus vendor Web sites.
Rogue security software might also attempt to spoof the Microsoft
security update process. Here's an example of rogue security
software that's disguised as a Microsoft alert but that does
not come from Microsoft.
The following are screen captures of Rogue Security software
Example of PC Antispyware 2010