Technical Information
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
- User Account Control (UAC)
Executes the following:
- <SYSTEM32>\rundll32.exe shell32.dll,Control_RunDLL "<LS_APPDATA>\msmsgs.cpl",
- <SYSTEM32>\cmd.exe /c %TEMP%\HCB1.BAT
Modifies file system :
Creates the following files:
- <LS_APPDATA>\ms.txt
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\mshot[1].txt
- %TEMP%\HCB1.BAT
- <LS_APPDATA>\msmsgs.cpl
- <LS_APPDATA>\zhwkfv0x.txt
- <LS_APPDATA>\htp.txt
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\htp[1].txt
- <LS_APPDATA>\mod.txt
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\modulo[1].txt
Deletes itself.
Network activity:
Connects to:
- 'al###sal.net.br':80
- 'localhost':1037
TCP:
HTTP GET requests:
- al###sal.net.br/mshot.txt
- al###sal.net.br/modulo.txt
- al###sal.net.br/htp.txt
UDP:
- DNS ASK al###sal.net.br
- '<Private IP address>':1038
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WINHELP' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
