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Infected With Systemupdate.exe


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3 replies to this topic

#1 ctimpe

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Posted 14 May 2006 - 11:01 AM

systemupdate.com has taken over my Internet expolrer home page, and I cannot change it. Also, I am getting an alert every 15 seconds "System Alert: Spyware Detected" which leads to a purchase of SpyDoctor. Also ever 2 minutes an alert "Your computer is infected" which also leads to a antivirus purchase. I have run adaware, spybot, Mcafee and housecall. Also, popups are now coming through (never had them before), including adult content. Help

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#2 Elendil

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Posted 14 May 2006 - 12:45 PM

Time to use HJT to smack this malware:

http://www.bleepingcomputer.com/tutorials/how-to-use-hijackthis/ read this tutorial on how to use HJT.

Mean while, I see you have tried Trend Micro's Housecall which DOES NOT (I believe) use Trend Micro's Anti-Spyware scanning engine as well as TM's Anti-virus. I recommend using one of the following anti-spyware products to do a preliminary cleaning while you wait for a HJT member to help you with your HJT log:

Trend Micro Anti-Spyware: http://www.trendmicro.com/spyware-scan/
SpySweeper: http://www.webroot.com/land/freescan-3000....&rsc=417&ac=417
Ewido Anti-Malware: http://www.ewido.net/en/
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#3 quietman7

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Posted 14 May 2006 - 02:46 PM

You may want to try the following before posting a log.

First, print out these instructions, or copy them to a NotePad file for reading while in Safe Mode, because you will not be able to connect to the Internet to read from this site.

Please download and install Ewido Anti-Malware v3.5. DO NOT perform a scan yet..
Print out the Ewido Install and Scan Instructions.

Go here and follow the instructions for using SmitfraudFix.
After using the tool reboot again in "SAFE MODE" and

Clean out your Temporary Internet files as follows:
  • Quit Internet Explorer and quit any instances of Windows Explorer.
  • Click Start, click Control Panel, and then double-click Internet Options.
  • On the General tab, click Delete Files under Temporary Internet Files.
  • In the Delete Files dialog box, tick the Delete all offline content check box , and then click OK.
  • On the General tab, click Delete Cookies under Temporary Internet Files, and then click OK.
  • Click on the Programs tab then click the Reset Web Settings button. Click Apply then OK.
  • Click OK.
Next Click Start, click Control Panel and then double-click Display. Click on the Desktop tab, then click the Customize Desktop button. Click on the Web tab. Under Web Pages you should see a checked entry called Security info or something similar. If it is there, select that entry and click the Delete button. Click Ok then Apply and Ok.

Empty the Recycle Bin by right-clicking the Recycle Bin icon on your Desktop, and then clicking Empty Recycle Bin.

Then perform a scan with Ewido and reboot back to normal mode.

If your still having problems, then follow Elendil's directions for posting a log.
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#4 quietman7

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Posted 15 May 2006 - 04:16 AM

ctimpe has sent you this email from http://www.bleepingcomputer.com/forums/index.php.

Thanks so much for your help. By using Smitfraudfix I was able to eliminate the Systemupdate.exe infection. Everything is back to normal again.

Your welcome. Glad to hear the problem was resolved.

The next thing to do is SET A NEW RESTORE POINT to prevent reinfection from an old restore point. Any trojans or malware you picked up could have been saved in System Restore. Since System Restore is a protected directory, your tools can not access it to delete these bad files which can reinfect your system. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to set a new RESTORE POINT:
1. Go to Start > Programs > Accessories > System Tools and click "System Restore".
2. Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
3. Then go to Start > Run and type: Cleanmgr
4. Click "OK".
5. Click the "More Options" Tab.
6. Click "Clean Up" in the System Restore section to remove all previous restore points except the newly created one.

Edited by quietman7, 15 May 2006 - 04:36 AM.

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