Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe csrcs.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- <SYSTEM32>\csrcs.exe
Executes the following:
- <SYSTEM32>\ping.exe -n 5 -w 250 127.0.0.1
- <SYSTEM32>\cmd.exe /c %TEMP%\suicide.bat
Modifies file system :
Creates the following files:
- %TEMP%\vjstqmh
- %TEMP%\aut2.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n09230945[1].asp
- <SYSTEM32>\autorun.inf
- %TEMP%\crxmgqc
- %TEMP%\aut1.tmp
- %TEMP%\suicide.bat
- <SYSTEM32>\csrcs.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\autorun.inf
- <SYSTEM32>\csrcs.exe
Deletes the following files:
- %TEMP%\aut2.tmp
- %TEMP%\vjstqmh
- %TEMP%\aut1.tmp
- %TEMP%\crxmgqc
Deletes itself.
Network activity:
Connects to:
- 'www.wh###smyip.com':80
TCP:
HTTP GET requests:
- www.wh###smyip.com/automation/n09230945.asp
UDP:
- DNS ASK www.wh###smyip.com
- '<Private IP address>':1037