What is Csync.php? (Virus Removal)

What is Csync.php? (Virus Removal)What is Csync.php? (Virus Removal)What is Csync.php? (Virus Removal)

This page aims to help you remove this trojan Virus for free and answer – what is Csync.php? We have recently received reports that a trojan-infected script is running on many user PCs.

Csync.php is a Trojan horse virus, which is the most numerous type of malware that exists to date. Our removal guide will help you successfully deal with the infection and remove it from your system, but before you move on to the instructions we recommend spending a couple of minutes to read through this article first. We have included only the most important, basic information about Csync.php and its kind, which you will need in order to better understand the issue at hand, as well as minimize the risk of getting infected again in the future.

What Trojans are all about

Csync.php and Trojans in general have reached this incredible level of popularity due to two of their most characteristic traits: 1) their stealth; 2) and their ability to perform a wide range of tasks. Most viruses are usually designed to execute a certain type of actions, whereas these bad guys can do so many things that you might not even know what the Trojan that’s on your computer right now is actually there for. We will outline the main purposes of viruses like Csync.php, so you have a full understanding of the extent of their capabilities.

  • Destruction. Trojans may be used to erase information from your drives by formatting them and thus rendering your machine completely empty of any and all data that had been previously stored on it. Whatever motives the hackers may have to do this, this is a pretty big threat to any user and should not be taken lightly.
  • Csync.php may be programmed to spy on you through your computer. It may monitor your browsing activity, the activities you perform in various applications; it may even pry on you through your webcam or listen in on your conversations by tapping into your microphone. This is a serious problem, especially considering the fact that your webcam may be used to estimate what valuables you may have in your home, or to determine the location of access points to it. This knowledge could then be used to execute actual, physical crimes, like burglary.
  • Using the same techniques as above, including one called keystroke logging can be used to collect sensitive information such as accounts, password, banking credentials etc. Not only can personal data be stolen with the aim of impersonating you and stealing your identity, but your financial information can be taken advantage of, too, allowing the criminals to rob you of your money.
  • Resource exploiting. Your computer could have been invaded with the intention of using its resources. For example, it may be turned into a bot in order to take part in spam campaigns or infect other computers within its network. Note that nearly 15% of all computers in the world are actually bots and in many of the cases the owners are completely unaware of the fact. Alternatively, your computer may have been hacked so its resources can be used to mine various cryptocurrencies, like bitcoins.
  • ‘Lead the way’ for other malware. Trojans are also often used as a backdoor for the viruses, most commonly ransomware. The Trojan will typically be sent within in a spam email and once the unsuspecting user runs the malicious script, it automatically downloads the ransomware onto the victim’s PC.

With all this knowledge in mind, the next logical step after removing Csync.php from your computer would be figuring out how to most effectively protect yourself from other Trojans henceforth. As they are commonly sent via email, be on the lookout for incoming messages from unfamiliar senders, especially if there are attached files to the messages. Beware, because the hackers have learned to make their emails very convincing and can even pose as existing companies or organizations in order to trick you into opening the attached files. These, too, can seem fairly trustworthy and harmless, as they can be in the form of a Word or PDF document. In addition to this, we also recommend abstaining from any and all interaction with online advertising materials. Malvertisements are a popular means of distribution for viruses of all sorts, not just Trojans, and telling them apart from real ads is impossible simply by looking at them. Also, it would be worth considering investing in a functional antimalware tool, to maximize your security and ensure a safe browsing experience.


Name Csync.php
Type Trojan
Danger Level  High (Trojans are often used as a backdoor for Ransomware)
Symptoms The eponymous Csync.php scripts is downloaded on your PC from practically every page.
Distribution Method  Mainly via spam email campaigns, within attached files, malvertisements and infected torrents or other downloadable content from shady sources.
Detection Tool Csync.php may be difficult to track down. Use SpyHunter – a professional parasite scanner – to make sure you find all files related to the infection.

Keep in mind, SpyHunter’s malware detection tool is free. To remove the infection, you’ll need to purchase the full version.
More information about SpyHunter and steps to uninstall.

What is Csync.php?

NOTE: If you did not read the opening few sentences, be aware: the script is a legitimate part of your browser. but definitely not when it downloads on its own. It is likely a trojan-infected script that is there to add your PC to a Botnet belonging to a virus creator. If you can not find anything, run the scanner from one of our advertisements. If you require any assistance, please ask us in the comments.

What is Csync.php? (Virus Removal)

Some of the steps will likely require you to exit the page. Bookmark it for later reference.

What is Csync.php? (Virus Removal)

Reveal All Hidden Files and Folders.

  • Do not skip this  – Csync.php may have hidden some of its files.

Hold together the Start Key and R. Type appwiz.cpl –> OK.

What is Csync.php? (Virus Removal)

You are now in the Control Panel. Look for suspicious entries. Uninstall it/them.

Type msconfig in the search field and hit enter. A window will pop-up:

What is Csync.php? (Virus Removal)

Startup —> Uncheck entries that have „Unknown“ as Manufacturer or otherwise look suspicious.

What is Csync.php? (Virus Removal)

Hold the Start Key and R –  copy + paste the following and click OK:

notepad %windir%/system32/Drivers/etc/hosts

A new file will open. If you are hacked, there will be a bunch of other IPs connected to you at the bottom. Look at the image below:

What is Csync.php? (Virus Removal)

If there are suspicious IPs below „Localhost“ – write to us in the comments.

Open the start menu and search for Network Connections (On Windows 10 you just write it after clicking the Windows button), press enter.

  1. Right-click on the Network Adapter you are using —> Properties —> Internet Protocol Version 4 (ICP/IP), click  Properties.
  2. The DNS line should be set to Obtain DNS server automatically. If it is not, set it yourself.
  3. Click on Advanced —> the DNS tab. Remove everything here (if there is something) —> OK.

What is Csync.php? (Virus Removal)

What is Csync.php? (Virus Removal)

Right click on the browser’s shortcut —> Properties.

NOTE: We are showing Google Chrome, but you can do this for Firefox and IE (or Edge).

What is Csync.php? (Virus Removal)

Properties —–> Shortcut. In Target, remove everything after .exe.

What is Csync.php? (Virus Removal)

What is Csync.php? (Virus Removal)  Remove Csync.php from Internet Explorer:

Open IE, click  What is Csync.php? (Virus Removal) —–> Manage Add-ons.

What is Csync.php? (Virus Removal)

Find the threat —> Disable. Go to What is Csync.php? (Virus Removal) —–> Internet Options —> change the URL to whatever you use (if hijacked) —> Apply.

What is Csync.php? (Virus Removal) Remove Csync.php from Firefox:

Open Firefoxclick  What is Csync.php? (Virus Removal)  ——-> Add-ons —-> Extensions.

What is Csync.php? (Virus Removal)

Find the adware/malware —> Remove.
What is Csync.php? (Virus Removal)Remove Csync.php from Chrome:

Close Chrome. Navigate to:

 C:/Users/!!!!USER NAME!!!!/AppData/Local/Google/Chrome/User Data. There is a Folder called „Default“ inside:

What is Csync.php? (Virus Removal)

Rename it to Backup Default. Restart Chrome.

  • At this point the threat is gone from Chrome, but complete the entire guide or it may reappear on a system reboot.

What is Csync.php? (Virus Removal)

Press CTRL + SHIFT + ESC simultaneously. Go to the Processes Tab. Try to determine which ones are dangerous. Google them or ask us in the comments.


Right click on each of the problematic processes separately and select Open File LocationEnd the process after you open the folder, then delete the directories you were sent to.

What is Csync.php? (Virus Removal)

What is Csync.php? (Virus Removal)

Type Regedit in the windows search field and press Enter.

Inside, press CTRL and F together and type the threat’s Name. Right click and delete any entries you find with a similar name. If they don’t show this way, go manually to these directories and delete/uninstall them:

  • HKEY_CURRENT_USER—-Software—–Random Directory. It could be any one of them – ask us if you can’t discern which ones are malicious.
    HKEY_CURRENT_USER—-Software—Microsoft—-Windows—CurrentVersion—Run– Random
    HKEY_CURRENT_USER—-Software—Microsoft—Internet Explorer—-Main—- Random

Remember to leave us a comment if you run into any trouble!


About the author


Violet George

Violet ist eine aktive Autorin mit Leidenschaft für alles, was sich auf Cyber-Sicherheit bezieht. Es macht ihr Spass, Opfern bei der Entfernung von Computervirusinfektionen zu helfen, und erfolgreich mit den Folgen der Angriffe umzugehen. Aber das Wichtigste ist, dass Violet es zu ihrer Priorität macht, Zeit damit zu verbringen, Menschen über Fragen des Datenschutzes aufzuklären und die Sicherheit ihrer Computer zu gewährleisten. Sie ist der festen Überzeugung, dass sie durch die Verbreitung dieser Informationen Web-Benutzer in die Lage versetzen kann, ihre persönlichen Daten und ihre Geräte wirksam vor Hackern und Internet-Betrügern zu schützen.

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