This type of trojan contains one or more malicious programs, which it will secretly install and execute.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Trojan-Dropper:W32/Agent.FBB appears to be an innocent EXE file, and is usually delivered as an email attachment, or as a standalone file. The recipient must click on and execute the EXE file in order to infect their system.
On execution, Agent.FBB creates a copy of itself as %appdata%\deveinf.exe. A process iexplore.exe is created and two DLL files, devecl.dll and deveio.dll, are injected into it. The process name is the same as the process name for the legitimate application Microsoft Internet Explorer, and is deliberately used to camouflage the malware.The trojan also creates DLL files in the application data folder (by default, C:\Documents and Settings\[username]\Application Data) and the Windows folder (default is C:\Winnt for Windows NT/2000 and C:\Windows for Windows XP). One of the files created in the Windows folder, devekd.sys, uses rootkit techniques to hide itself, the injected process IEXPLORE.EXE, and the other malicious dll files.
The deveio.dll file injected into the iexplore.exe process is detected as Backdoor:W32/Hupigon.BXBH and is a keylogger program. Any information typed in by the individual on the infected system is logged. The malware author can then enter the infected system at their own leisure and retrieve the logged information using a separate server program.The other injected file devecl.dll is detected as Trojan:W32/Inject.EC and acts by manipulating the process to make registry changes. The changes to the winlogon registry keys enable the malware to start automatically whenever the system is restarted, while another registry key change allows the rootkit to start automatically as a Windows NT service on every subsequent startup. The changes also hide the Windows system file devenum.dll, which enumerates the available devices which receive DirectX data.
Creates these files:
Creates these mutexes:
Sets these values: