Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
- <LS_APPDATA>\Start\update_backup.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\ic1ijj3p.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES4.tmp" "%TEMP%\vbc3.tmp"
- '%TEMP%\update.exe'
- '%TEMP%\svchost.exe'
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\2xulbiz9.cmdline"
Modifies file system:
Creates the following files:
- %TEMP%\KyxzCvR.resources
- %TEMP%\whatdafock.txt
- %TEMP%\ZZkPhfwu.resources
- %TEMP%\RES2.tmp
- %TEMP%\2xulbiz9.exe
- %TEMP%\vbc3.tmp
- %TEMP%\RES4.tmp
- %TEMP%\ic1ijj3p.out
- %TEMP%\ic1ijj3p.0.vb
- %TEMP%\ic1ijj3p.cmdline
- <LS_APPDATA>\Start\update.exe
- %TEMP%\2k75w08.resources
- %TEMP%\svchost.exe
- %TEMP%\wl.resources
- %TEMP%\update.exe
- %TEMP%\2xulbiz9.out
- %TEMP%\vbc1.tmp
- %TEMP%\2xulbiz9.cmdline
- %TEMP%\MSNPSharp.dll
- %TEMP%\2xulbiz9.0.vb
Deletes the following files:
- %TEMP%\2xulbiz9.cmdline
- %TEMP%\2xulbiz9.0.vb
- %TEMP%\vbc3.tmp
- %TEMP%\RES4.tmp
- %TEMP%\vbc1.tmp
- %TEMP%\RES2.tmp
- %TEMP%\2xulbiz9.exe
- %TEMP%\2xulbiz9.out
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: '' WindowName: ''
