Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'shell' = 'Explorer.exe sychost.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WinIcons' = '<SYSTEM32>\winicons.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\sysconf.exe
Malicious functions:
Executes the following:
- <SYSTEM32>\reg.exe ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v WinIcons /t REG_SZ /d <SYSTEM32>\winicons.exe /f
Modifies file system :
Creates the following files:
- <SYSTEM32>\sychost.exe
- C:\log.txt
- <Current directory>\8286024503.exe
- <SYSTEM32>\winicons.exe
- C:\good_dogs.scr
Deletes the following files:
- <Current directory>\8286024503.exe
Network activity:
Connects to:
- 'ma##.narod.ru':25
- 'ir#.mgts.by':6667
- 'ir#.tut.by':6667
UDP:
- DNS ASK na##d.ru
- DNS ASK ma##.narod.ru
- DNS ASK ui#.nnov.ru
- DNS ASK ir#.tut.by
- DNS ASK ir#.mgts.by
- DNS ASK ho#t
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
