Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <LS_APPDATA>\start\update_backup.exe
- <LS_APPDATA>\start\rcx3990.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%\cmdzbn.resources
- %TEMP%\vbc36d1.tmp
- %TEMP%\p4dpn42f.out
- %TEMP%\p4dpn42f.cmdline
- %TEMP%\p4dpn42f.0.vb
- %TEMP%\whatdafock.txt
- %TEMP%\jcryrtwxc.resources
- %TEMP%\ktysylvu.resources
- %TEMP%\6sovb76k.exe
- %TEMP%\res36f1.tmp
- %TEMP%\res3115.tmp
- %TEMP%\6sovb76k.out
- %TEMP%\6sovb76k.cmdline
- %TEMP%\6sovb76k.0.vb
- %TEMP%\msnpsharp.dll
- %TEMP%\kh78id61.resources
- <LS_APPDATA>\start\update.exe
- %TEMP%\svchost.exe
- %TEMP%\update.exe
- %TEMP%\vbc3105.tmp
- %TEMP%\windowsupdate.ico
Deletes the following files
- %TEMP%\res3115.tmp
- %TEMP%\vbc3105.tmp
- %TEMP%\6sovb76k.0.vb
- %TEMP%\6sovb76k.out
- %TEMP%\6sovb76k.exe
- %TEMP%\6sovb76k.cmdline
- %TEMP%\res36f1.tmp
- %TEMP%\vbc36d1.tmp
- %TEMP%\p4dpn42f.cmdline
- %TEMP%\p4dpn42f.0.vb
- %TEMP%\p4dpn42f.out
- %TEMP%\ktysylvu.resources
- %TEMP%\jcryrtwxc.resources
- %TEMP%\windowsupdate.ico
- <LS_APPDATA>\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%\6sovb76k.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES3115.tmp" "%TEMP%\vbc3105.tmp"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\p4dpn42f.cmdline"' (with hidden window)
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES36F1.tmp" "%TEMP%\vbc36D1.tmp"' (with hidden window)
Executes the following
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\6sovb76k.cmdline"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES3115.tmp" "%TEMP%\vbc3105.tmp"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\p4dpn42f.cmdline"
- '%WINDIR%\microsoft.net\framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES36F1.tmp" "%TEMP%\vbc36D1.tmp"
