Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'UserInit' = '<SYSTEM32>\userinit.exe,%WINDIR%32\System.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Systen' = '%WINDIR%32\System.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Security Center
blocks the following features:
- Windows Security Center
Executes the following:
- '%WINDIR%32\System.exe'
- '<Current directory>\Print.exe'
Searches for windows to
detect analytical utilities:
- ClassName: '' WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'PROCMON_WINDOW_CLASS' WindowName: ''
- ClassName: '' WindowName: 'Registry Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'RegmonClass' WindowName: ''
- ClassName: '' WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'GBDYLLO' WindowName: ''
- ClassName: 'OLLYDBG' WindowName: ''
- ClassName: 'FilemonClass' WindowName: ''
- ClassName: 'pediy06' WindowName: ''
Modifies file system:
Creates the following files:
- %WINDIR%32\System.exe
- <Current directory>\Print.exe
Sets the 'hidden' attribute to the following files:
- %WINDIR%32\System.exe
Network activity:
Connects to:
- 'ou####akjr.ddns.net':2014
UDP:
- DNS ASK ou####akjr.ddns.net
Miscellaneous:
Searches for the following windows:
- ClassName: '18467-41' WindowName: ''
