Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'utiladhm' = '<Current directory>\utiladhm.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
Malicious functions:
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\CSC1.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\fz4bpyf8.cmdline"
Modifies file system :
Creates the following files:
- %TEMP%\CSC1.tmp
- %TEMP%\RES2.tmp
- %TEMP%\fz4bpyf8.dll
- %TEMP%\fz4bpyf8.0.cs
- %TEMP%\fz4bpyf8.cmdline
- %TEMP%\fz4bpyf8.out
Deletes the following files:
- %TEMP%\fz4bpyf8.out
- %TEMP%\fz4bpyf8.dll
- %TEMP%\fz4bpyf8.0.cs
- %TEMP%\RES2.tmp
- %TEMP%\CSC1.tmp
- %TEMP%\fz4bpyf8.cmdline
Network activity:
Connects to:
- 'fb#####.###.###-185-11-185.secure24.win.hostgator.com':80
- '74.##5.232.51':80
- 'wp#d':80
TCP:
HTTP GET requests:
- 74.##5.232.51/
- wp#d/wpad.dat
HTTP POST requests:
- fb#####.###.###-185-11-185.secure24.win.hostgator.com/adsdata.asmx
UDP:
- DNS ASK fb#####.###.###-185-11-185.secure24.win.hostgator.com
- DNS ASK www.google.com
- DNS ASK wp#d
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
