Win32.HLLW.Autoruner.52760
Added to the Dr.Web virus database:
2011-06-28
Virus description added:
2011-07-01
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /S'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /W'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /h'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koeil' = '%HOMEPATH%\koeil.exe /q'
Creates the following files on removable media:
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\iHDQ.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\koeil.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\koeilx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
Modifies file system :
Creates the following files:
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\koeil.exe
- <Drive name for removable media>:\koeilx.exe
- <Drive name for removable media>:\iHDQ.ico
- %HOMEPATH%\koeil.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8000
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
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