Win32.HLLW.Autoruner1.11184
Added to the Dr.Web virus database:
2012-01-25
Virus description added:
2012-01-25
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'systemntfy' = '<SYSTEM32>\systemntfy.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\cbclient.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\systemntfy.exe' = '<SYSTEM32>\systemntfy.exe:*:Enabled:System'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Creates and executes the following:
- <SYSTEM32>\systemntfy.exe
Modifies file system :
Creates the following files:
- C:\cbclient.exe
- C:\autorun.inf
- <SYSTEM32>\systemntfy.exe
Sets the 'hidden' attribute to the following files:
- C:\autorun.inf
- C:\cbclient.exe
- <Drive name for removable media>:\cbclient.exe
- <SYSTEM32>\systemntfy.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'www.0c##ch.com':21
- 'www.sh###mation.com':80
TCP:
HTTP GET requests:
- www.sh###mation.com/azadunimsh/ip.txt
UDP:
- DNS ASK www.0c##ch.com
- DNS ASK www.sh###mation.com
- '<Private IP address>':1037
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'MS_WINHELP' WindowName: ''
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