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Danger level 7
Type: Trojans
Common infection symptoms:
  • Annoying Pop-up's
  • Block exe files from running
  • Blocks internet connection
  • Connects to the internet without permission
  • Installs itself without permissions
  • Shows commercial adverts


Backdoor.Smadow.gen!A is a generic Trojan that is able to install in your system without your permission and then download and execute various files without your knowledge. What is more, this Trojan is used to for online advertising, which means that it can automatically thrust certain advertisements onto you, when you browse the Internet. It is very likely that Backdoor.Smadow.gen!A is a part of a rogue distribution system and it can be advertising a fake security program.

When Backdoor.Smadow.gen!A is installed in your system it modifies registry entries so that it could load automatically whenever you boot your Windows. It also makes use of csrss.exe process. Normally, this process is an integral part of the Windows operating system, and it needs to run all the time, but in this case, when you are infected with Backdoor.Smadow.gen!A, there should be more than one csrss.exe running in your Windows Task Manager. Do not forget that the real csrss.exe file is located in the C:\Windows\System32 directory. If the process running in your Task Manager is located elsewhere, you can be sure that it is a virus.

That is one of the means which can help you to determine whether you have an infection or not, because Backdoor.Smadow.gen!A does not have any exact interface and you cannot really know when or how you get infected. Some of the components of this Trojan are also listed as dangerous pieces of malware by various security programs. Also, this parasite infection can cause random notifications pop up into your screen. One of them, for example, can carry this message:

58fae01c3a.exe has encountered a problem and needs to close. We are sorry for the inconvenience. 58fae01c3a.exe has encountered a problem and needs to close. We are sorry for the inconvenience. If you were in the middle of something, the information you were working on might be lost. Please tell Microsoft about this problem. We have created an error report that you can send to us. We will treat this report as confidential and anonymous.

In a sense it makes it look like your computer is in trouble and you need to do something about it. Naturally, the next moment Backdoor.Smadow.gen!A will offer you to download another malicious program or it will download and execute it itself. Thus you must remove Backdoor.Smadow.gen!A from your computer immediately. It is very unlikely that you would be able to do it manually, because that requires extensive knowledge in computing. So simply acquire a reliable antimalware program which will locate Backdoor.Smadow.gen!A with all its components and delete it from your system automatically.

Download Spyware Removal Tool to Remove* Backdoor.Smadow.gen!A
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How to manually remove Backdoor.Smadow.gen!A

Files associated with Backdoor.Smadow.gen!A infection:


Backdoor.Smadow.gen!A processes to kill:



  1. Sergey Aug 3, 2011

    The linked SpyHunter did not remove Smadow.gen!A for me

  2. Pcthreat Aug 4, 2011

    Sergey, Use the Spyware Help Desk function in SPyhunter program. The support team will creat a custom fix and will remove Smadow.gen!A

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