What is Csrss.exe

The file csrss.exe is an executable file that manages the Microsoft Windows graphical commands. It is a valid part of the Microsoft Client/Server Runtime Server Subsystem and is responsible for the steady and safe functioning of the computer. Csrss.exe creates worker threads as per client requests. It is a legitimate Microsoft runtime file. Terminating it may cause the Windows to malfunction.

However many Trojans or viruses use the same name as that of csrss.exe. It is common for many spyware to have filenames of non-malware programs. A process named csrss becomes registered as a Trojan. It facilitates access to remote locations. The computer becomes open to control from outside. This results in password theft and stealing of Internet banking information and other personal data. This exposes the computer to great security risk. Hence the Trojan should be immediately removed from the system.

It is quite a task to determine whether the csrss.exe file is Trojan or a legitimate Microsoft file. If the original Windows executable file is deleted, the operating system may go awry. It should never be disabled, as it is needed for the proper functioning of essential applications. However, if it is a Trojan, it opens up the computer to remote attackers.

To determine whether this process is a virus or a legitimate Windows file, you have to check the directory location it runs from. There are many performance scans available that can be used to optimize the CPU performance, memory and other settings.

The nature of the csrss.exe file can be established in the following manner.

Firstly, check the date modified. Secondly, open up the Task Manager. Right click on the csrss.exe process depicted there and try to end it. Being a critical file, Windows should pop up a warning message saying that csrss.exe is a critical process and cannot be deleted. If no such message is flashed, then the file is indeed a Trojan or a virus.

The presence of a malicious csrss.exe file on the computer indicates the presence of a strain of Ahlem.A worm. Infection by this virus makes the computer vulnerable and it should be removed immediately. It causes many problems like retarded performance, loss of data, disclosure of classified personal data to sites etc.

To safeguard the computer is essential to remove the Trojan csrss.exe file and the damaged profile. Before terminating the csrss.exe process, ensure that no applications are running. It is essential to keep a backup of the data.

The csrss.exe corrupts the profile, hence ensure that all important information stored in the profile should be backed up. Once you remove the profile, it is not possible to recover the data stored inside it.

or deleting the profile, log in as the administrator. This profile should be different from the corrupt profile. If the corrupt profile itself is that of the administrator, back up the EFS recovery key. Select the profile from the list of profiles. Right-click My Computer, click Properties, and then click on the Advanced tab, click Settings under User Profile. The list of all the available profiles will be visible. Select the damaged profile, and click Delete.

Close all windows and logoff. When you log on the next time, a new profile will be created.