Exterminate It! Antimalware


Known threats:700,086 Last Update:March 16, 12:51


It seems that the problem with UACd.sys virus has been solved by this program. So many thanks for creating this amazingly useful program.

Eva S.


Aliases of Cyn.03a (AKA):

[Eset]Win32/Cyn.103.A trojan
[F-Prot]security risk or a "backdoor" program
[Panda]Backdoor Program.LC
[CA]Backdoor/Cyn.103, Win32.Cyn.103

How to Remove Cyn.03a from Your Computer^

You can effectively remove Cyn.03a from your computer with Exterminate It!.

After installing the program, run a scan to display a list of the files associated with Cyn.03a in the Scan Result screen and remove these files. For information about running scans and removing malware files, see the Exterminate It! Help.


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.

Be Aware of the Following Trojan Threats:

Dgs, Servsax, PNTask, DaCryptic, Mxsender.


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.

Be Aware of the Following Backdoor Threats:

Webserver.Matrix, Comp, Star.One, Austr.Para, Nuclear.beta.


Remote Access Tool. A program that enables a hacker to remotely access and control other people’s computers. A RAT can serve a variety of malicious purposes, including hijacking and transferring private information, downloading files, running programs, and tampering with system settings.

Be Aware of the Following RAT Threats:

DTr.beta, Jump, IC.Manage, Any.Place.Control, Win32.FatCon.Client.

How Did My PC Get Infected with Cyn.03a?^

The following are the most likely reasons why your computer got infected with Cyn.03a:

  • 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 Cyn.03a. 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 Cyn.03a.

Visiting Questionable Web Sites

When you visit sites with dubious or objectionable content, trojans-including Cyn.03a, spyware and adware, may well be automatically downloaded and installed onto your computer.

Detecting Cyn.03a^

The following symptoms signal that your computer is very likely to be infected with Cyn.03a:

PC is working very slowly

Cyn.03a 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 Cyn.03a.

New desktop shortcuts have appeared or the home page has changed

Cyn.03a can tamper with your Internet settings or redirect your default home page to unwanted web sites. Cyn.03a may even add new shortcuts to your PC desktop.

Annoying popups keep appearing on your PC

Cyn.03a 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

Cyn.03a 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.