Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- %LOCALAPPDATA%\start\update_backup.exe
- %LOCALAPPDATA%\start\rcx29dc.tmp
Creates the following files on removable media
- <Drive name for removable media>:\bloc-notes.exe
Malicious functions
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Modifies file system
Creates the following files
- %TEMP%\avdrr.resources
- %TEMP%\vbc26bf.tmp
- %TEMP%\vgqiua69.out
- %TEMP%\vgqiua69.cmdline
- %TEMP%\vgqiua69.0.vb
- %TEMP%\whatdafock.txt
- %TEMP%\gyjcnkfdw.resources
- %TEMP%\gdhhphky.resources
- %TEMP%\kyyftvn8.exe
- %TEMP%\res26cf.tmp
- %TEMP%\res1b94.tmp
- %TEMP%\kyyftvn8.out
- %TEMP%\kyyftvn8.cmdline
- %TEMP%\kyyftvn8.0.vb
- %TEMP%\msnpsharp.dll
- %TEMP%\x61t481m.resources
- %LOCALAPPDATA%\start\update.exe
- %TEMP%\svchost.exe
- %TEMP%\update.exe
- %TEMP%\vbc1b84.tmp
- %TEMP%\windowsupdate.ico
Deletes the following files
- %TEMP%\res1b94.tmp
- %TEMP%\vbc1b84.tmp
- %TEMP%\kyyftvn8.out
- %TEMP%\kyyftvn8.cmdline
- %TEMP%\kyyftvn8.exe
- %TEMP%\kyyftvn8.0.vb
- %TEMP%\res26cf.tmp
- %TEMP%\vbc26bf.tmp
- %TEMP%\vgqiua69.cmdline
- %TEMP%\vgqiua69.0.vb
- %TEMP%\vgqiua69.out
- %TEMP%\gdhhphky.resources
- %TEMP%\gyjcnkfdw.resources
- %TEMP%\windowsupdate.ico
- %LOCALAPPDATA%\start\update.exe
Network activity
Connects to
- '17#.#3.169.14':80
Miscellaneous
Creates and executes the following
- '%TEMP%\update.exe'
- '%TEMP%\svchost.exe'
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\kyyftvn8.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1B94.tmp" "%TEMP%\vbc1B84.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\vgqiua69.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES26CF.tmp" "%TEMP%\vbc26BF.tmp"' (with hidden window)
Executes the following
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\kyyftvn8.cmdline"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1B94.tmp" "%TEMP%\vbc1B84.tmp"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\vgqiua69.cmdline"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES26CF.tmp" "%TEMP%\vbc26BF.tmp"
