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Danger level 9
Type: Trojans
Common infection symptoms:
  • Annoying Pop-up's
  • Cant change my homepage
  • Connects to the internet without permission
  • Installs itself without permissions
  • Shows commercial adverts
  • Slow Computer
  • Slow internet connection
  • System crashes


Trojan.Apdahost.A is a computer infection that is classified as Trojan. It can cause a lot of problems to your system. Trojan.Apdahost.A is created using Microsoft Intermediate Language, that's why it is sometimes detected as Trojan:MSIL/Apdahost.A. It is a relatively new Trojan first discovered last September, so there is not enough technical details gathered that would allow us to present a detailed threat analysis, however, there are some pieces of information that we are definitely sure of.

Trojan.Apdahost.A is related to adware applications. That means it could be installing them, or it could be installed via pop-up advertisements that appear on your screen, because you have adware installed. It should be noted that computer infections usually come in packs, so it is very likely that Trojan.Apdahost.A comes bundled with other infections as well. Therefore, if you have Trojan.Apdahost.A, you are most probably infected with browser helper objects that redirect you to malicious websites, or change your search results.

Needless to say, that upon installation Trojan.Apdahost.A changes registry subkeys and adds another entry that allows the Trojan to load automatically without the user knowing it. Trojan.Apdahost.A also injects its code into legitimate system processes in order to hide its presence. For example, it makes use of svchost.exe process, and when the user sees this process in Windows Task Manager, he is not compelled to think that there is something wrong with it, because originally it is genuine Windows process.

Other processes associated with Trojan.Apdahost.A are msdcsc.exe and patch.exe.exe. msdcsc.exe is especially dangerous because it is commonly used for hidden penetration into a target computer, and for remote administration of the infected system. Therefore, it could be inferred that Trojan.Apdahost.A connects to the Internet without the user's knowledge and communicates with a remote server to further compromise the system's security.

You need to remove Trojan.Apdahost.A from your computer along with all the the programs that could be infecting your system. Since manual removal can be rather complicated, you are advised to acquire a reliable antimalware tool and erase Trojan.Apdahost.A automatically. At the same time the computer security program of choice will scan for other possible infections. Protect your computer against malicious computer threats.

Download Spyware Removal Tool to Remove* Trojan.Apdahost.A
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How to manually remove Trojan.Apdahost.A

Files associated with Trojan.Apdahost.A infection:


Trojan.Apdahost.A DLL's to remove:


Trojan.Apdahost.A processes to kill:


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