Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /E'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /Y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gualuo' = '%HOMEPATH%\gualuo.exe /g'
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>:\ZsO.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\gualuo.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\gualuox.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%\vob32.exe
- %HOMEPATH%\gualuo.exe
- %HOMEPATH%\Rv81Q3izVbKdJYTR.exe
- %HOMEPATH%\sooty.exe
Executes the following:
- <SYSTEM32>\tasklist.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\vob32.dll
- %HOMEPATH%\gualuo.exe
- %TEMP%\Rlb..bat
- %HOMEPATH%\Rv81Q3izVbKdJYTR.exe
- %HOMEPATH%\sooty.exe
- %HOMEPATH%\vob32.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\gualuo.exe
- <Drive name for removable media>:\gualuox.exe
- <Drive name for removable media>:\ZsO.ico
- %HOMEPATH%\gualuo.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %HOMEPATH%\Rv81Q3izVbKdJYTR.exe
- %HOMEPATH%\sooty.exe
Network activity:
Connects to:
- 'ac###loop.in':80
TCP:
HTTP POST requests:
- ac###loop.in/?in##############################################################################################################
UDP:
- DNS ASK go##le.ae
- DNS ASK ac###loop.in
- DNS ASK ik##.com
- DNS ASK si###ell.com
Miscellaneous:
Searches for the following windows:
- ClassName: '129385756' WindowName: '857361809'
- ClassName: '725042856' WindowName: '1372013386'
- ClassName: '117633461' WindowName: '1700827277'
- ClassName: '426188491' WindowName: '21285372'
- ClassName: '813525806' WindowName: '1797984744'
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: '1437729808' WindowName: '589240919'
- ClassName: '583259787' WindowName: '953097913'
- ClassName: '563854592' WindowName: '1703359748'
- ClassName: '1935730125' WindowName: '1507260168'
- ClassName: '759840660' WindowName: '1272958950'
- ClassName: '1835587495' WindowName: '796841544'
- ClassName: '1421820633' WindowName: '822671428'
- ClassName: '1990260267' WindowName: '1634959067'
- ClassName: '1085694193' WindowName: '1696378041'
- ClassName: '1516310732' WindowName: '1123764739'
- ClassName: '1497116210' WindowName: '1402696961'
- ClassName: '1925751697' WindowName: '1658239964'
- ClassName: '1494687829' WindowName: '1624521648'
- ClassName: '990297448' WindowName: '1410586380'
