wuauclt.exe and svchost.exe errors NEED URGENT ASSISTANCE!
Hello: I am getting errors while running some programs in my computer, with Windows XP Professional Service Pack 3. I think it started when the automated update to Adobe Acrobat 9 Pro was downloaded. The errors read something like this: Wuauclt.exe Application Error The instruction at 0x10031027 referenced memory at 0x00df621c. The memory could not be written Click on OK to terminate the program svchost.exe Application Error The instruction at 0x10031027 referenced memory at 0x00df621c. The memory could not be read Click on OK to terminate the program (I have to click OK many times (50 or more J), before I can return to the regular screen of the application I am running, before the error occurs.) By reading some of Microsoft forums, I thought that this may be the result of a malware. I run Malwarebytes' Anti-Malware with negative results. I deleted the files wuauclt.exe and wuauclt1.exe, which were not in the C:\WINDOWS\system32 and tried reinstalling Service Pack 3, but I keep getting the errors. After getting these errors, I have problems with Explorer, MS Word, Adobe Acrobat and other programs. I re-start the computer and can work on it for a while, before I get the errors again. Any help that you can provide will be greatly appreciated. Thank you2 people need an answerI do too
November 19th, 2009 6:13pm

Hello SilverEagle Yes, wuauclt.exe can be a Trojan. If you found wuauclt.exe in a subfolder of C:\Windows it is definitely malware It should be in C:\Windows\System32 Try running this online scan Also http://www.sophos.com/virusinfo/analyses/trojcultb.html The site above gives the registry key it creates and tells you to back up the registry before removing it. Start/Run. Type regedit OK The registry editor opens. Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup. Locate the HKEY_LOCAL_MACHINE entry: HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft auto update = WUAUCLT.EXE and delete it if it exists. Close the registry editor.
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November 20th, 2009 1:17am

Hello cybertek: Thank you for responding to my request for assistance. My wuauclt.exe does reside in the C:\Windows\System32. Since there were several days before I received a response, I continued looking into your forums responses. I had already performed the tasks you are suggesting and found no malware (I also have run Malwarebytes' Anti-Malware) or Trojans in my computer. (Please refer to the attached text of the reports from both of these programs.) I actually have two files in the System32 directory; a wuauclt.exe (53,472 bytes) and a wuauclt1.exe (165,888 bytes) files. The size of the second file is more in line to the ones listed on the information I researched.. I renamed the files so I could have wuauclt1.exe be the wuauclt.exe. I rebooted the system and now I do not have the errors I was having before. I was even able to repair my Adobe Acrobat 9 Pro which was giving me the problems reported. NOW I have different problemsso I still need your HELP!!! When I started the system again, I showed me a screen which I replaced sometime last year. My system is very slow and when I shut it down, it does not do it some times or waits for long time before doing it. Starting up is also slow. I also thank you for your patience. REPORTS: Malwarebytes' Anti-Malware 1.41 Database version: 3200 Windows 5.1.2600 Service Pack 3 11/19/2009 10:01:52 PM mbam-log-2009-11-19 (22-01-52).txt Scan type: Quick Scan Objects scanned: 142352 Time elapsed: 8 minute(s), 1 second(s) Memory Processes Infected: 0 Memory Modules Infected: 0 Registry Keys Infected: 0 Registry Values Infected: 0 Registry Data Items Infected: 0 Folders Infected: 0 Files Infected: 0 Memory Processes Infected: (No malicious items detected) Memory Modules Infected: (No malicious items detected) Registry Keys Infected: (No malicious items detected) Registry Values Infected: (No malicious items detected) Registry Data Items Infected: (No malicious items detected) Folders Infected: (No malicious items detected) Files Infected: (No malicious items detected) a-squared Web Malware Scanner v. 4.0 Scan settings: Objects: Memory, Traces, Cookies, C:\WINDOWS\, C:\Program Files Scan archives: On Heuristics: Off ADS Scan: On Scan start: 11/20/2009 11:28:43 AM Scanned Files: 132524 Traces: 421095 Cookies: 30 Processes: 71 Found Files: 0 Traces: 2 Cookies: 0 Processes: 0 Scan end: 11/20/2009 12:17:31 PM Scan time: 12:48:48 AM
November 20th, 2009 9:36pm

Well I have done some searching for your error. It seems to be quite common, but I could not find a fix for it I`m afraid.So, some thoughtsI also have wuauclt.exe (53,472 bytes) and a wuauclt1.exe (165,888 bytes). Best to leave them as they are meant to be. What I would try. 1. Turn off Automatic Updates totally. See what happens then. 2. Go to the "Windows Update Log" and look for any "Errors". The log will be pretty long, but just look at the most recent entries at the end. Check for any "Failed" updates The windows update log is here C:\Windows\Windows Update.log
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November 21st, 2009 12:24am

Hello again cybertek: Here is what I have done so far. I un-installed Adobe Acrobat which is the program that triggered the errors after downloading the latest updates. I also renamed the wuauclt files to be in the original way. I conducted a more thorough search for wuauclt files and deleted everything that was not in the system32 directory. When I rebooted the system, it created a massive shutdown and I almost lost it. The system went through a recovery phase and then it rechecked the hard drive, deleted some truncated files and restarted twice, before it looked normal again. I ran Malwarebytes' Anti-Malware which reported no infection once again. I stopped the Automatic Updates and went to Microsofts update page, to do it manually. It reported that it was up to date. Finally, and by looking at another site I ran a program called Combofix, which shut the system down, because I had two antivirus and firewalls running (they warn that this program could damage the system if not run properly). During the execution of this program, it found a couple of virus/Trojans (EICAR test file and VB-BackDoor.gen), which were quarantined and deleted. The system rebooted and Combofix generated a report. Now I have been working on my computer for about 5 hours and so far I have not had any errors. The only thing I noticed is that it is running slower, it takes sometimes a little time to respond to commands and one time I had a site page lockup and closed the Internet Explorer. I would like to know if there are ways of testing performance and repair or improve it. I will wait for your comments and thank you for your patience.
November 23rd, 2009 10:58pm

Well Silvereagle, I'm not sure if you ever got an answer, but while doing a search for my son because he was having this same issue I came upon this forum with your dilemma. He is running Windows XP SP3 and is having the same issue as your initial problem.He is bringing his computer over to me tomorrow to take a look at it. If you found a solution I would love to hear what it is. If not and I do find a solution I will be happy to post it here if needed.Tom
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July 31st, 2010 9:46pm

I'm not certain if any of you know about the Microsoft "Clean Up Center", but it does a thorough job of scouring your system for malware, Trojans, registry errors; the whole nine yards.I do know that it will at least identify any problem(s), but I'm uncertain as to whether it will fix everything? Hey, give it a shot -- you have nothing to loose... The only setback (for me) is that you must use Internet Explorer to utilize this program/software. (I use Firefox)LINK:Microsoft Clean Up Center ~Scott
August 16th, 2010 1:00am

SilverEagle and Waukesha Web Designer;As mentioned in my previous post , my son was having the same issue as SilverEagle initially had. I removed eighteen Trojans, viruses, Spyware and Adware by running Microsoft Security Essentials. After that I ran the Microsoft Malicious Software removal tool and it found nothing. The computer is running like a brand new machine with no errors popping up at all.I also did some manual removal of software that he said he never used and in some cases had no idea what they were or where they came from, just as a precaution.Anyway, MSE seems to have done the trick for us.
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August 17th, 2010 5:37am

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