In most cases ComboFix should not take more than 20 minutes
to complete its routine if malware is detected. However, in some cases it could take longer depending on a variety of factors. If a system is badly infected, ComboFix may take more time to complete all it's routines (various stages) than it normally does or fail to run properly. There are also circumstances ComboFix will hang
at various stages due to malware interference, failure to disable other real-time protection tools or the presence of CD Emulators (Daemon Tools, Alchohol 120%, Astroburn, AnyDVD, etc) so that it takes longer to run or may not complete successfully. While that is not normal behavior, it is not unusual.
As a general policy, Bleeping Computer does not offer advice
on how to run ComboFix unless we asked someone to run it or
if there is a problem with the computer caused by running the tool. This is because people should not be using ComboFix without being advised to do so by a trained expert (see here
) who is assisting them deal with a malware problem.
If the scan will not complete or stalls (hangs)...using Task Manager to stop ComboFix's related process usually is enough to abort it.
Open Task Manager
and look for the following ComboFix related processes (some have a .3XE extension):
- any file that has the extension *.3XE except CF*****.3XE <- do not end this process
One at a time, right-click and select End Process
. If doing that did not free ComboFix and allow it to continue, then you will need to reboot the computer manually.
If you need further assistance with a malware infection, please follow the instructions in the Malware Removal and Log Section Preparation Guide
starting at Step 6.
- If you cannot complete a step, then skip it and continue with the next.
- In Step 6 there are instructions for downloading and running FRST which will create two logs.
When you have done that, post your logs
in the Virus, Trojan, Spyware, and Malware Removal Logs forum
, NOT here
, for assistance by the Malware Response Team.Start a new topic
, give it a relevant title and post your log(s) along with a brief description of your problem, a summary of any anti-malware tools you have used and a summary of any steps that you have performed on your own. If you cannot produce any of the required logs...start the new topic anyway
. Explain that you followed the Prep. Guide, were unable to create the logs, and describe what happened when you tried to create them. A member of the Malware Removal Team will walk you through, step by step, on how to clean your computer.
After doing this, please reply back in this thread with a link to the new topic so we can close this one.