Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /M'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /H'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /P'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /s'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /O'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /K'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /n'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yiaahog' = '%HOMEPATH%\yiaahog.exe /j'
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>:\kziU.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\yiaahog.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\yiaahogx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- %HOMEPATH%\yiaahog.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\yiaahog.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\yiaahog.exe
- <Drive name for removable media>:\yiaahogx.exe
- <Drive name for removable media>:\kziU.ico
- %HOMEPATH%\yiaahog.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'ns#.##ayer1532.com':8001
UDP:
- DNS ASK ns#.##ayer1532.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
