One or more of the identified infections was a backdoor Trojan
. Backdoor Trojans, IRCBots
are very dangerous
because they provide a means of accessing a computer system that bypasses security mechanisms and steal sensitive information like passwords, personal and financial data which they send back to the hacker. Remote attackers use backdoor Trojans as part of an exploit to to gain unauthorized access to a computer and take control of it without your knowledge. Read the Danger: Remote Access Trojans
If your computer was used for online banking, has credit card information or other sensitive data on it, all passwords should be changed immediately
to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised
. They should be changed by using a different computer and not the infected one. If not, an attacker may get the new passwords and transaction information. Banking and credit card institutions should be notified of the possible security breach.
Although the backdoor Trojan was identified and removed, your PC has likely been compromised and there is no way to be sure the computer can ever be trusted again. It is dangerous and incorrect to assume that because the backdoor Trojan has been removed the computer is now secure
. Many experts in the security community believe that once infected with this type of malware, the best course of action is to reformat and reinstall the OS. Please read "When should I re-format?
Should you decide not to follow that advice, we will do our best to help clean the computer of any infections but we cannot guarantee it to be trustworthy or that the removal will be successful. If you wish to proceed, please do the following.
The "Cannot find...
", "Could not run..."
or "Error loading...
" message is usually related to malware that was set to run at startup but has been deleted. Windows is trying to load this file but cannot locate it since the file was mostly likely removed during an anti-virus or anti-malware scan. However, an associated orphaned registry entry
remains and is telling Windows to load the file when you boot up.
When Windows loads, it looks for any files associated with registry entries for programs that are set to run at startup. If the file was removed but not the registry entry, Windows will display an error message
. You need to remove this registry entry so Windows stops searching for the file when it loads.
To resolve this, download Autoruns
, search for the related entry and then delete it.
- Create a new folder on your hard drive called AutoRuns (C:\AutoRuns) and extract (unzip) the file there. (click here if your not sure how to do this.)
- Open the folder and double-click on autoruns.exe to launch it.
- Please be patient as it scans and populates the entries.
- When done scanning, it will say Ready at the bottom.
- Scroll through the list and look for a startup entry related to the file(s) in the error message.
- Right-click on the entry and choose delete.
- Reboot your computer and see if the startup error returns.
Please print out and follow the instructions for using SDFix
in BC's self-help tutorial
"How to use SDFix
".-- When using this tool, you must use the Administrator's account or an account with "Administrative rights"
When done, the SDFix report log will open in notepad and automatically be saved in the SDFix folder as Report.txt
. Please copy and paste the contents of Report.txt in your next reply.