Eng
  1. Skip to navigation
  2. Skip to content
  3. Skip to sidebar


Backdoor:W32/Hupigon.OGA


Aliases:


Backdoor.Win32.Hupigon.dsbm

Malware
Backdoor
W32

Summary

A remote administration utility which bypasses normal security mechanisms to secretly control a program, computer, or network.



Disinfection & Removal

Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



Technical Details

Upon execution, this Hupigon variant creates the following files:

  • %windir%\temp\a.exe
  • %windir%\temp\b.exe

Only the file called "b.exe" is executed, which is detected as Backdoor:W32/Hupigon.OGA.It modifies and executes the driver %systemdir%\drivers\beep.sys with its own kernel rootkit component.The modified beep.sys file is detected as Rootkit:W32/Agent.UI.

After the execution of Rootkit:W32/Agent.UI, Hupigon.OGA then restores the original data of the beep.sys file.It then drops a copy itself to the following directory:

  • %Programdir%\ime\sodata.exe

It executes sodata.exe as a driver.The following Registry key are then created:

  • HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Windows data Type = dword:00000110 Start = dword:00000002 ErrorControl = dword:00000000 ImagePath = "%programdir%\ime\sodata.exe" DisplayName = "Windows data" ObjectName = "LocalSystem" Description = "

File System Changes

Creates these files:

  • %windir%\temp\a.exe
  • %windir%\temp\b.exe






Submit a sample




Wondering if a file or URL is malicious? Submit a sample to our Lab for analysis via the Sample Analysis System (SAS)

Give And Get Advice




Give advice. Get advice. Share the knowledge on our free discussion forum.

Scan and clean your PC




F-Secure Online Scanner will scan and clean your PC in just a few minutes for free