Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Services' = 'service2.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Update' = '%TEMP%\KCA.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\BACKUP\RESTORE\driver.exe
- <Drive name for removable media>:\BACKUP\RESTORE\Desktop.ini
Malicious functions:
Creates and executes the following:
- %TEMP%\service2.exe
Searches for windows to
detect analytical utilities:
- ClassName: 'PROCMON_WINDOW_CLASS' WindowName: ''
- ClassName: 'RegMonClass' WindowName: ''
- ClassName: 'FileMonClass' WindowName: ''
Modifies file system :
Creates the following files:
- %TEMP%\service2.exe
- %ALLUSERSPROFILE%\Application Data\TEMP:4B575B7A
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\BACKUP\RESTORE\driver.exe
- %TEMP%\service2.exe
Network activity:
Connects to:
- 'ir#.##yumsuzko.net':4448
UDP:
- DNS ASK ir#.##yumsuzko.net
- '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
