Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /y'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /N'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /x'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /G'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /V'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /d'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /e'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /Z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /l'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /o'
- [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\2850350272] 'Name' = '"%TEMP%\2.tmp"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Sxikihuvuw' = 'rundll32.exe "%WINDIR%\ctmsdsg.dll",Startup'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /R'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /p'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'zaiim' = '%HOMEPATH%\zaiim.exe /I'
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>:\zSH.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\zaiim.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\zaiimx.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%\nlose.exe
- %HOMEPATH%\jobs.exe (downloaded from the Internet)
- %HOMEPATH%\zaiim.exe
- %HOMEPATH%\je5wHx1c844MQHkms5.exe
- %HOMEPATH%\klose.exe
- %HOMEPATH%\mlose.exe
Executes the following:
- <SYSTEM32>\rundll32.exe "%WINDIR%\ctmsdsg.dll",iep
- <SYSTEM32>\tasklist.exe
- <SYSTEM32>\rundll32.exe "%WINDIR%\ctmsdsg.dll",Startup
Injects code into
the following system processes:
- <SYSTEM32>\spoolsv.exe
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1208' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1200' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1001' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2000' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1405' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1209' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{A8A88C49-5EB2-4990-A1A2-0876022C854F}' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{AEBA21FA-782A-4A90-978D-B72164C80120}' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1A10' = '00000000'
Modifies file system :
Creates the following files:
- %WINDIR%\Temp\3.tmp
- %HOMEPATH%\zaiim.exe
- %HOMEPATH%\jobs.exe
- %WINDIR%\ikodedug.dll
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\CAMBMVED.php
- %TEMP%\1.tmp
- %HOMEPATH%\klose.exe
- %HOMEPATH%\je5wHx1c844MQHkms5.exe
- %HOMEPATH%\mlose.exe
- %WINDIR%\ctmsdsg.dll
- %HOMEPATH%\nlose.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\zaiim.exe
- <Drive name for removable media>:\zaiimx.exe
- <Drive name for removable media>:\zSH.ico
- %HOMEPATH%\zaiim.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %WINDIR%\Temp\3.tmp
- %HOMEPATH%\je5wHx1c844MQHkms5.exe
- %TEMP%\2.tmp
- <DRIVERS>\etc\hosts
Deletes itself.
Network activity:
Connects to:
- '16#######70c.edataupdate.net':80
- 'localhost':1036
- 'st####banners.com':80
TCP:
HTTP GET requests:
- st####banners.com/xxx
UDP:
- DNS ASK 16#######70c.edataupdate.net
- DNS ASK st####banners.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
