Isass.exe sluit mijn PC af!

  • Onderwerp starter Onderwerp starter lw87
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lw87

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17 jan 2002
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Bijgevoegd is een schermafbeelding van wat er op onregelmatige tussnpozen op mijn PC gebeurt:
Isass.exe sluit mijn PC af.

Het kan na enkele minuten tot ruim een half uur fout gaan.

Ik heb NAV2004 met de nieuwste anti-virus data
Norton vindt niets en geeft ook geen meldingen.

Zoeken op internet levert op dat het een sasser virus zou zijn: Fxsasser.exe vindt niet:
W32.Sasser.Worm has not been found on your computer.

Ik kan geen bestand isass.exe vinden, wel Lsass.exe.

Mij PC draait op Windows 2000 NL

Wie weet raad?
 

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Probeer eerst eens Windows update uit te voeren. Vaak zitten hier allemaal patches in tegen de nieuwste virussen...
 
Controleer even of je alle windows updates geinstalleerd hebt. Het is nl niet alleen het virus, maar ook een bug in windows die dit mogelijk maakt.

Tijdens afsluiten kun je eventueel even naar
START -> UITVOEREN

en daar intikken : shutdown -a

Dit breekt de afsluitprocedure af.
 
Als je engels begrijpt heb ik hier nog meer info :
The Microsft website has patch to fix it on their site.
If you are using Microsoft® Windows® XP or Windows XP Service Pack 1 (SP1) and your computer has been infected by the Sasser worm, you can take these steps to update your software, remove the worm, and help protect against future infections.

Step 1: Disconnect from the Internet
To avoid further problems, disconnect from the Internet:

Broadband connection users: Locate the cable that runs from your external DSL or cable modem and unplug that cable either from the modem or from the telephone jack.
Dial-up connection users: Locate the cable that runs from the modem inside your computer to your telephone jack and unplug that cable either from the telephone jack or from your computer.

Step 2: Stop the Shutdown Cycle
This worm may cause LSASS.EXE to stop responding, which forces the operating system to shut down after 60 seconds. If your computer starts to shut down, follow these steps to abort any system shutdown that may be in progress.

On the taskbar at the bottom of your screen, click Start, and then click Run.
Type: cmd and then click OK.
At the command prompt, type: shutdown.exe -a and then press ENTER.
Step 3: Mitigate the Vulnerability
You can temporarily remove the vulnerability that allows the worm to infect your computer by creating a log file.

Create the log file

On the taskbar at the bottom of your screen, click Start, and then click Run.
Type: cmd and then click OK.
At the command prompt, type: echo dcpromo >%systemroot%\debug\dcpromo.log and then press ENTER.
Make the log file read-only

At the command prompt, type: attrib +R %systemroot%\debug\dcpromo.log and then press ENTER.
Step 4: Improve System Performance
If your computer is acting sluggish or if the Internet connection is slow, the worm may be flooding your local network connection. This may make it impossible for you to download and install the required software update. To improve system performance:

Press CTRL+ALT+DELETE, and then click Task Manager.
For each of the following tasks that may be listed, click the task to select it, and then click the End Task button to end it.
Any task ending with _up.exe (for example, 12345_up.exe).
Any task starting with avserve (for example, avserve.exe).
Any task starting with avserve2 (for example, avserve2.exe).
Any task starting with skynetave (for example, skynetave.exe).
hkey.exe
msiwin84.exe
wmiprvsw.exe

Note Do not end the wmiprvse.exe task; it is a legitimate system task.

Step 5: Enable a Firewall
A firewall is a piece of software or hardware that creates a protective barrier between your computer and the Internet. If your computer has been infected, a firewall will help limit the effects of the worm. Windows XP includes the Internet Connection Firewall (ICF). To turn on ICF:

On the taskbar at the bottom of your screen, click Start, and then click Control Panel.
Click the Network and Internet Connections category.
(If the Network and Internet Connections is not visible, click Switch to Category View under Control Panel on the left side of the Control Panel window.)
Click Network Connections.
Right-click the Dial-up, LAN, or High-Speed Internet connection that you use to connect to the Internet, and then click Properties from the shortcut menu.
On the Advanced tab, under Internet Connection Firewall, select Protect my computer and network, and then click OK. The Windows XP firewall is now enabled.
Step 6: Reconnect to the Internet
Plug the cable (referred to in Step 1) back into your computer, telephone jack, or modem.

Step 7: Install the Required Update
To help protect your computer against this worm in the future, you must download and install security update 835732, which was released with Microsoft Security Bulletin MS04-011. To download security update 835732, go to http://go.microsoft.com/?LinkID=526067

Step 8: Check For and Remove Sasser
After you have installed the update and restarted your computer, go to the Web page "What You Should Know About the Sasser Worm and Its Variants" at http://www.microsoft.com/security/incident/sasser.asp. Use the Sasser Worm Removal Tool to search your hard disk for and remove Sasser.A, Sasser.B, Sasser.C, and Sasser.D.

About Internet Connection Firewall
The Windows XP Internet Connection Firewall can block useful tasks such as sharing files or printers through a network, transferring files in applications, or hosting multiplayer games. Nonetheless, Microsoft recommends that you use a firewall to help protect your computer.

If you turn on the Internet Connection Firewall and find that you can't perform some tasks you want to, read "How to Open Ports in the Windows XP Internet Connection Firewall" at http://www.microsoft.com/security/protect/ports.asp.

If you have more than one computer, want more technical information, or want to learn more about firewalls, read "Frequently Asked Questions About Firewalls" at http://www.microsoft.com/security/protect/firewall.asp.

Heb even zo snel geen tijd om te vertalen ;)
 
Iedereen reuze bedankt.
Het afsluitprobleem bleef voortbestaan tot ongeveer 14:00 uur en is vanaf dat tijdstip NIET meer opgetreden!

De verwijdertool van Symantec vond niets

Norton vond ook niets

Ik heb Lsass.exe niet verwijderd.

isaas.exe kwam niet voor

Raadselachtig ......

Maar ik ben er wel van af (hoop ik..)
 
Hoe het komt weet ik niet, maar het probleem is nu al een hele tijd niet weer opgetreden.......
 
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