reason that svchost accounts for 100% of the system CPU is not the svchost service itself:This error occurs when the Update service fails to be downloaded or installed. Moreover, the automatic updating of Windows is also dependent on a backend application of the svchost.exe service, with a high load.Machines that frequently generate such problems are generally unstable machines that provide Internet access
I have one more MDM under the Windows root directory on drive C. EXE file, which is automatically generated after each deletion and generates a process named SVCHOST. Since the process is in progress, all my folders are invisible, even if you select "show all files and folders" in the settings, turning off "Hide protected system files" is useless. what's going on?
I fell victim to this virus yesterday! Finally, the problem is solved (not formatting t
C:windowssoftwaredistribution directory.
6, restore Automatic Updates to automatically start and restart the service.
7, start EAV all monitoring.
8, you can restart the computer to try and there is no cpu100% phenomenon, of course, you can not restart the computer and continue to work.
Problem Analysis:
1, Ekrn.exe occupy cpu100% problem belongs to the anti-virus software in the process of killing the normal phenomenon of the system, because Svchost.exe constantly restart the operation ca
About the Sxs.exe,autorun.inf virus removal method
Key words: Trojan.PSW.QQPa Autorun.inf
Reference:
Features: Sxs.exe,autorun.inf files are automatically generated in each packing directory, and some are generated SVOHOST.exe or sxs.exe under Windowssystem32, and the file attributes are implied attributes. Disable antivirus software automatically.
Transmission path: Mainly through the U disk, mobile hard disk
Deceptive:
1, press CTRL del ALT view process, possibly more svohost process, an
The computer appears the system malfunction to boot the error svchost.exe how to do? Sometimes the boot encountered some errors to worry about how to do? Take Svchost application Error as an example
1, do any thing we should have a train of thought. A simple way to solve the problem is to find the crux of the problem, the right remedy is charm.
2, we divide the system into a few types of fault. Boot, shutdown, software error, etc.
Solve
1, the driver has not been certified, resulting in 100% of CPU resources. A large number of beta drivers are flooding the web, causing difficult to find fault causes.
2, anti-virus software cause failure. As a result of some anti-virus and anti-virus software added to the Web page, plug-ins, mail random monitoring, undoubtedly increased the system burden, can be selected according to the circumstances of the open service.
3, virus, Trojan caused. A large number of worms are rapidly replica
: Clean the system memory and the local hard disk with the reliable anti-virus software, and turn on the system setup software to see if there are any abnormal startup procedures. Update anti-virus software and firewall regularly, strengthen anti-virus awareness, master the correct anti-virus knowledge, avoid the interference of Trojan horse. 4, Control Panel-management tools-Service-rising Realtime MONITOR Service point the right mouse button, instead of manual.
5, start-> run->msconfig-> sta
\windows\ CurrentVersion\Run
Add below:
"Svchost" = "%systemdir%\svchost.exe"
This way every time the system starts, Trojan horse program will automatically run.
2, monitor IE browser access to the page, if found that users log on to the bank Online Banking personal Bank page will pop up fake IE window (as shown in figure), tricking users to enter a login password and payment password.
Figure A forged IE window
Figure II Normal website Web page
below may vary depending on your operating system version. Please make adjustments based on your own system.
Win98 system: c: Windows, c: WindowssystemWinnt and Win2000 systems: c: Winnt, c: Winntsystem32Winxp: c: Windows, c: Windowssystem32The drive letter of the directory may vary depending on the system installation path. if the system is installed on drive D, change C: Windows to drive D: Windows.
Most Trojans can change the default service port. We should take appropriate measures based on
address of the remote system to be viewed, and "jtdd" after the/u indicates the user account used by the Tasklist command, it must be a valid account on the remote system, and "12345678" after/p indicates the password of the jtdd account.
Figure 2Note: When you use the Tasklist command to view the processes in the remote system, you must support the remote machine's RPC service. Otherwise, the command cannot be used normally.
3. view the services provided by System Processes
The Tasklist comma
continuously download the public key. As long as the public key is not available, CryptoWall will not damage the victim's computer. Talos also observed that this sample also had some additional security checks. For example, if the language on the victim's machine is not supported, the infected process is automatically terminated. The following language settings will not be infected:
Russian, Kazakh, Ukrainian, Uzbek, Belarusian, Azeri, Armenian, Kyrgyz, Georgian.
Obviously, attackers want to ex
:/Windows" to "D:/Windows ".Most Trojans can change the default service port. We should take appropriate measures based on the specific situation. A complete check and deletion process is shown in the following example:For example, clear the port 113 Trojan (applicable only to Windows ):This is a trojan program based on IRC chat room control.1. Use the netstat-An command to check whether port 113 is enabled on your system.2. Use the fport command to check which program is listening to port 113.F
InstallerMongoray.exe runs mongoray with low PermissionsTasklist/svc (CMD) learn how many system services each svchost process provides (2000 \ 98 unavailable)Taskman.exe Task Manager (XP unavailable)Taskmgr Task ManagerTaskmgr.exe Task ManagerTcmsetup.exe telephone service client InstallationTcpsvcs.exe TCP ServiceTermsrv.exe Terminal ServiceTelephon. CPL and modem optionsTelnet Remote Connection ProgramTftp.exe transfers files to a remote computer
process to Port Mapper Copyright 2000 by Foundstone, inc. http://www.foundstone.com/ PID process port proto path 748 tcpsvcs-> 7 tcp c: \ winnt \ system32 \ tcpsvcs.exe 748 tcpsvcs-> 9 tcp c: \ winnt \ system32 \ tcpsvcs.exe 748 tcpsvcs-> 19 tcp c: \ winnt \ system32 \ tcpsvcs.exe 416 svchost-> 135 tcp c: \ winnt \ system32 \ svchost. EXE is it clear at a glance. Now, what programs are opened on eac
A memory run program or a dummy program can also be called a Shell to run your program,The simple pendulum is forced to hang after the program is created and uninstall the original program's original area, writecode in the new program is re-executed, if it's a bright side, it can protect the program,If the dark side is a pure viral TrojanIt is best to choose to run in a system process, such as cmd,svchost it is just aStraight pick -and-wear through th
network section.Common Errors: N/Whether the process is a system process: Yes Spool32-spool32.exe-Process Information
Process file: spool32 or spool32.exeProcess name: Printer SpoolerDescription: Windows Print task control program, used for printer readiness.Common Errors: N/Whether the process is a system process: Yes Spoolsv-spoolsv.exe-Process Information
Process file: spoolsv or spoolsv.exeProcess name: Printer Spooler ServiceDescription: Windows Print task control program, used for printe
between the client and the server on the network is unstable. If this service is disabled, any service dependent on it cannot be started. "
For more information about SC commands, see help SC
(Back up the registry before modification ),
Svchost shared service special: you may need to go to the Registry location after restart: [HKEY_LOCAL_MACHINE \ SOFTWARE \ Microsoft \ Windows NT \ CurrentVersion \ svchost
system startup, and then replace the password when the system starts, then we can restore the replaced program. Of course, you must first be able to access system partitions to replace programs started with the system.
One way to replace the necessary programs started by the system is to write a cleanpwd, which clears the administrator password. The usage is as follows:(2). Usage1) Use a dual system, a boot disk, or a mounted disk to another system. If it is an NTFS partition, another system or
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