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csrss.exe (5.1.2600.0)

Contained in software

Name:Windows XP Home Edition, Deutsch
License:commercial
Information link:http://www.microsoft.com/windowsxp/

File details

Filepath:C:\WINDOWS\system32\dllcache \ csrss.exe
Filedate:2002-08-29 14:00:00
Version:5.1.2600.0
Filesize:4.096 bytes

Checksum and file hashes

CRC32:7567F540
MD5:C113 8540 3DCE 2C9F C292 54DC A980 5ECD
SHA1:0B1B 4B29 8153 60C9 E280 AC1C E03F 9E07 C290 892C

Version resource information

CompanyName:Microsoft Corporation
FileDescription:Client Server Runtime Process
FileOS:Windows NT, Windows 2000, Windows XP, Windows 2003
FileType:Application
FileVersion:5.1.2600.0
InternalName:CSRSS.Exe
LegalCopyright:© Microsoft Corporation. All rights reserved.
OriginalFilename:CSRSS.Exe
ProductName:Microsoft® Windows® Operating System
ProductVersion:5.1.2600.0

csrss.exe was found in the following malware reports:

W32.Dalbug.Worm

Technical details
...%windir%Smss.exe %windir%Csrss.exe NOTE: %windir% is a variable....
...This is a non-malicious joke program that is executed by Smss.exe and Csrss.exe once they are running....
...NOTE: The files Smss.exe and Csrss.exe have the same file names as two system files that reside in the %windir%System32...
...During execution, the Smss.exe and Csrss.exe files keep the service running, and checking every three seconds to make sure...
...    %windir%smss.exe Csrss.exe      %windir%csrss.exe...
...process if it is activated. Smss.exe and Csrss.exe also try to create the these registry values, however if they detect that Regedit.exe...
...(instead of creating them). Finally, Smss.exe and Csrss.exe will also copy the worm to the following files:...
Source: http://securityresponse.symantec.com/avcenter/venc/data/w32.dalbug.worm.html

Trojan.Webus

Technical details
...Copies itself as %System%csrss.exe. Note: %System% is a variable...
..."ccpApps" = "%System%csrss.exe" ".WMAudio" = "%System%csrss.exe"...
..."Prog" = "%System%csrss.exe" "FiendlyType" =...
...".TEXTCONV" = "%System%csrss.exe" "Microsoft SourceSafe"...
..."RegDone Ex" = "%System%csrss.exe" "BuildLabs" = "%System%csrss.exe"...
Removal instructions
..."ccpApps" = "%System%csrss.exe" ".WMAudio" = "%System%csrss.exe"...
..."Prog" = "%System%csrss.exe" "FiendlyType" =...
...".TEXTCONV" = "%System%csrss.exe" "Microsoft SourceSafe"...
..."RegDone Ex" = "%System%csrss.exe" "BuildLabs" = "%System%csrss.exe"...
Source: http://securityresponse.symantec.com/avcenter/venc/data/trojan.webus.html

Backdoor.Hale

Technical details
...A harmless text file. Csrss.exe: a Backdoor Trojan Horse detected...
..."NTDLM" = "c:winntsystem32qossrvcsrss.exe" to the registry key:...
...NTS (Secure.exe) NTP (Csrss.exe) NOTE:...
...C:WinntSystem32dhcp: Csrsslsrms.dll: A text file, not a dll....
...C:WinntSystem32 estore: Csrss.exe: Detected as Backdoor.Padmin....
Removal instructions
..."NTDLM"="c:winntsystem32qossrvcsrss.exe" Navigate to the key:...
Source: http://securityresponse.symantec.com/avcenter/venc/data/backdoor.hale.html

Spyware.LoverSpy

Technical details
...%Windir%Rec_pwd.html %System%ShellExtCsrss.exe Notes:...
Removal instructions
...%Windir%Rec_pwd.html %System%ShellExtCsrss.exe Write-up by:...
Source: http://securityresponse.symantec.com/avcenter/venc/data/spyware.loverspy.html

W32.Ahlem.A@mm

Technical details
...Create a copy of the worm as %Windir%Csrss.exe. NOTE: %Windir% is a variable....
..."SYSTEMSars32"="%Windir%csrss.exe" to the registry key:...
Removal instructions
..."SYSTEMSars32"="%windir%csrss.exe" Exit the Registry Editor....
Source: http://securityresponse.symantec.com/avcenter/venc/data/w32.ahlem.a@mm.html

Backdoor.Stanex

Technical details
...%Windir%systemSysTray.exe. %Windir%TEMPCSRSS.exe %Windir%systemCSRSS.exe...
...Windows 95/98/Me: %Windir%system32CSRSS.exe. On Windows 95/98/Me, the Trojan...
Source: http://securityresponse.symantec.com/avcenter/venc/data/backdoor.stanex.html

Trojan.Gutta

Technical details
...Copies itself as C:WindowsCSRSS.exe. This path is hard-coded and...
..."rundll32" = "windowscsrss.exe" in the registry key:...
Removal instructions
..."rundll32"="C:WindowsCSRSS.exe" Exit the Registry Editor....
Source: http://securityresponse.symantec.com/avcenter/venc/data/trojan.gutta.html

W32.Sndog@mm

Technical details
...Copies itself to %windir%csrss.exe as a hidden file. Note: %Windir% is a variable...
..."Shockwave" = "%windir%csrss.exe" to the registry key:...
Removal instructions
..."Shockwave" = "%windir%csrss.exe" Exit the Registry Editor....
Source: http://securityresponse.symantec.com/avcenter/venc/data/w32.sndog@mm.html

W32.Nimda.E@mm

Technical details
...The worm now copies itself to the \%Windows% folder as Csrss.exe instead of Mmc.exe NOTE: %Windows% is a variable....
Source: http://securityresponse.symantec.com/avcenter/venc/data/w32.nimda.e@mm.html

Backdoor.Sokacaps

Technical details
...Creates the files: C:windowsmediacsrss.exe C:windowsmediacsrss.uzy...
..."RegWrite"="c:windowsmediacsrss.exe" to the registry key:...
Removal instructions
...Scroll through the list and look for Csrss.uzy. If you find the file, click...
..."RegWrite"="c:windowsmediacsrss.exe" Exit the Registry Editor....
......
Source: http://securityresponse.symantec.com/avcenter/venc/data/backdoor.sokacaps.html



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