E-mail Worm

Vulconi
Vulconi used Ask the Experts™
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Hello there,

One of secretaries in our company has accidentaly opened a *.zip with a *.exe inside. It was a worm. Unfortunately she deleted the mail completely because she thought it was a dud. Her anti virus tool was not able to stop the worm its seems. She is using Avast.

Now this worm is using her e-mail to send "Update-KB7359-x86.exe" to who ever is on her personal list. Her OS is Windows 2000.

How do I stop it and remove it... please help.
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Commented:
hi Vulconi,

you may try these steps:

1. download TCPView (tcpview.exe) and Process Explorer (procexp.exe) from www.sysinternals.com.
2. run TCPView to see which process is connecting to other hosts through SMTP port 25.
3. run Process Explorer to find out the related process, locate its folder, then kill the worm process.

(the worm distribution should be terminated now, please make sure this is done before going to step 4)

4. rename or delete the executable file of the worm process in the folder located above.
5. run msconfig.exe from Start | Run, check if this worm process appears in the lists of Services and Startup.
6. uncheck the related items if found.
7. run regedit.exe from Start | Run, search for the items containing the name of that process.
8. delete the related items if found. better backup the windows registry before making changes.
9. reboot.

hope it helps,
bbao

Author

Commented:
Well I think I have already sorted it out.

I did follow some of your steps although I deviated somewhat.

1. I rebooted the machine into safemode.
2. Deleted all files located in the temp and Tempory internet files
3. Installed Nod32
4. Scanned and found an infected file ... W32/Rbot
5. Downloaded a removal tool via other computer and transfered via flash disk.
6. Ran the removal tool on machine.
7. Restarted and ran a full scan

The problem I encountered was the Nod32 did not want to work...services was disabled. Avast was re-installed and I ran the full system check.

No problems yet...

Thank you for your help. I hope both our steps will prove useful for other.

Vulconi

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