csrss.exe
csrss.exe known as Ahlem.A Worm csrss, has the following information and may help up understand this process better.
csrss.exe - Here is the scoop on Ahlem.A Worm. The big question: what is csrss.exe and is it spyware, a trojan and if so, how do I get rid of Ahlem.A Worm?
csrss.exe (Ahlem.A Worm) - Details
If a process named csrss.exe is running on your computer, you may have been infected with a strain of the Ahlem.A worm.
csrss.exe is considered to be a security risk, not only because antivirus programs flag Ahlem.A Worm as a virus, but also because a number of users have complained about its performance.
Ahlem.A Worm is likely a virus and as such, presents a serious vulnerability which should be fixed immediately! Delaying the removal of csrss.exe may cause serious harm to your system and will likely cause a number of problems, such as slow performance, loss of data or leaking private information to websites.
CSRSS.EXE - Confusion
Csrss.exe is the Microsoft client server runtime which generates worker threads for client requests. The confusion over csrss.exe comes from Trojans or viruses that use the same executable name (.exe) as that of csrss.
Many spyware/malware programs use filenames of usual, non-malware programs.
The legitimate csrss.exe is part of the Microsoft client server software and is a very important part of the system which should not be removed.
One way to determine if csrss.exe is a legitimate file besides looking at the date modified is to right click on csrss.exe inside Task Manager and attempt to end process. Because csrss is a critical file, Microsoft should inform you with a message that csrss.exe is a critical system process and end it is not possible.
If you do not receive this message when attempting to end the csrss.exe process, then it may indeed be a virus. If you decide to terminate the csrss.exe process, make sure any applications are shutdown (such as word, etc) and that you have a backup of your data.
Any vulnerability should be removed immediately. If your have not already done so, you should visit our anonymous surfing section to make sure you are not giving away private information!
CSRSS.EXE - Disclaimer
Every attempt has been made to provide you with the correct information for csrss.exe or AHLEM.A WORM. Many spyware / malware programs use filenames of usual, non-malware programs. If we have included information about csrss.exe that is inaccurate, we would greatly appreciate your help by updating the Process Information database and we will do our best to correct it.
You should verify the accuracy of information we provided about csrss.exe. Ahlem.A Worm may have had a status change since this page was published.