Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Microsoft Host Driver ' = '<SYSTEM32>\svchosf.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'shell' = 'Explorer.exe svchosf.exe'
Malicious functions:
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\gate[1].php
- <SYSTEM32>\svchosf.exe
- <Current directory>\7213703.exe
Deletes the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\gate[1].php
- <Current directory>\7213703.exe
Network activity:
Connects to:
- '<Private IP address>':80
- '<Private IP address>':139
- 'my###.#ygamesonline.org':80
- '<Private IP address>':445
TCP:
HTTP GET requests:
- my###.#ygamesonline.org/gate.php?us####################################
UDP:
- DNS ASK my###.#ygamesonline.org