Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SvrWsc' = ''
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\SvrWsc] 'Start' = '00000002'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\BSOATA\BZMOUN.exe
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\svrwsc.exe
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\winlogon.exe
- <SYSTEM32>\services.exe
the following user processes:
- iexplore.exe
- firefox.exe
Modifies file system :
Creates the following files:
- C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\W5QN8XCF\desktop.ini
- C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\2Q3MMUA6\desktop.ini
- C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\0DE3GHIV\desktop.ini
- <SYSTEM32>\svrwsc.exe
- %TEMP%\Low68A0.tmp.bat
- C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\LY2C1W34\desktop.ini
Sets the 'hidden' attribute to the following files:
- C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\2Q3MMUA6\desktop.ini
- C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\0DE3GHIV\desktop.ini
- C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\LY2C1W34\desktop.ini
- C:\Documents and Settings\NetworkService\Local Settings\Temporary Internet Files\Content.IE5\W5QN8XCF\desktop.ini
Deletes itself.
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
