Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /b'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /a'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /v'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /u'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /g'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /r'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /f'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /i'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoiakis' = '%HOMEPATH%\yoiakis.exe /x'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\svchost.exe
Creates the following files on removable media:
- <Drive name for removable media>:\RCX1D.tmp
- <Drive name for removable media>:\Sexy_backup.exe
- <Drive name for removable media>:\RCX1A.tmp
- <Drive name for removable media>:\Secret_backup.exe
- <Drive name for removable media>:\RCX20.tmp
- <Drive name for removable media>:\RCX26.tmp
- <Drive name for removable media>:\RCX29.tmp
- <Drive name for removable media>:\yoiakis_backup.exe
- <Drive name for removable media>:\RCX23.tmp
- <Drive name for removable media>:\Porn_backup.exe
- <Drive name for removable media>:\Secret.exe
- <Drive name for removable media>:\Sexy.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\yoiakis.exe
- <Drive name for removable media>:\Porn.exe
- <Drive name for removable media>:\Passwords_backup.exe
- <Drive name for removable media>:\RCX17.tmp
- <Drive name for removable media>:\Passwords.exe
- <Drive name for removable media>:\Bloc-notes.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%\yoiakis.exe'
- '%TEMP%\svchost.exe'
- '%TEMP%\laouxax.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\tolkndhe.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES22.tmp" "%TEMP%\vbc21.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\rdaokkhb.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1F.tmp" "%TEMP%\vbc1E.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\g-u2hpwq.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES28.tmp" "%TEMP%\vbc27.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\of6zcj_x.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES25.tmp" "%TEMP%\vbc24.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\x7cekg_5.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES16.tmp" "%TEMP%\vbc15.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\bktbcurd.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\vbc1.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\h7e4fv_r.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES1C.tmp" "%TEMP%\vbc1B.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\jpcpk9ig.cmdline"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES19.tmp" "%TEMP%\vbc18.tmp"
Modifies file system :
Creates the following files:
- %TEMP%\h7e4fv_r.out
- %TEMP%\vbc1B.tmp
- %TEMP%\h7e4fv_r.cmdline
- %TEMP%\fpBTLk.resources
- %TEMP%\h7e4fv_r.0.vb
- %TEMP%\RES1C.tmp
- %TEMP%\rdaokkhb.cmdline
- %TEMP%\rdaokkhb.out
- %TEMP%\rdaokkhb.0.vb
- %TEMP%\FPYSs.resources
- %TEMP%\xoEI.resources
- %TEMP%\FQSm.resources
- %TEMP%\WYdvjgJ.resources
- %TEMP%\windowsupdate.ico
- %TEMP%\vbc15.tmp
- %TEMP%\RES16.tmp
- %TEMP%\jpcpk9ig.0.vb
- %TEMP%\RES19.tmp
- %TEMP%\UzzdIf.resources
- %TEMP%\vbc18.tmp
- %TEMP%\jpcpk9ig.cmdline
- %TEMP%\jpcpk9ig.out
- %TEMP%\vbc1E.tmp
- %TEMP%\RES25.tmp
- %TEMP%\xVa.resources
- %TEMP%\vbc24.tmp
- %TEMP%\of6zcj_x.cmdline
- %TEMP%\of6zcj_x.out
- %TEMP%\JcTgLpOmk.resources
- %TEMP%\vbc27.tmp
- %TEMP%\RES28.tmp
- %TEMP%\g-u2hpwq.out
- %TEMP%\g-u2hpwq.0.vb
- %TEMP%\g-u2hpwq.cmdline
- %TEMP%\tolkndhe.0.vb
- %TEMP%\tolkndhe.cmdline
- %TEMP%\H.resources
- %TEMP%\RES1F.tmp
- %TEMP%\IWSzqg.resources
- %TEMP%\tolkndhe.out
- %TEMP%\R.resources
- %TEMP%\of6zcj_x.0.vb
- %TEMP%\bgD.resources
- %TEMP%\vbc21.tmp
- %TEMP%\RES22.tmp
- %HOMEPATH%\RCX3.tmp
- %HOMEPATH%\Porn.exe
- %HOMEPATH%\Sexy.exe
- %HOMEPATH%\yoiakis.exe
- %HOMEPATH%\Secret.exe
- %HOMEPATH%\RCX4.tmp
- %HOMEPATH%\RCX7.tmp
- %HOMEPATH%\RCX8.tmp
- %HOMEPATH%\RCX6.tmp
- %HOMEPATH%\RCX5.tmp
- %HOMEPATH%\Passwords.exe
- %TEMP%\666R28H26.resources
- %TEMP%\MSNPSharp.dll
- %TEMP%\laouxax.exe
- %TEMP%\nHWN.resources
- %TEMP%\svchost.exe
- %TEMP%\bktbcurd.0.vb
- %TEMP%\RES2.tmp
- %TEMP%\bktbcurd.exe
- %TEMP%\vbc1.tmp
- %TEMP%\bktbcurd.cmdline
- %TEMP%\bktbcurd.out
- %HOMEPATH%\RCX9.tmp
- %HOMEPATH%\c\RCX13.tmp
- %HOMEPATH%\c\RCX14.tmp
- %HOMEPATH%\c\RCX12.tmp
- %HOMEPATH%\c\RCX11.tmp
- %HOMEPATH%\c\Passwords.exe
- %TEMP%\kGUQqcsJ.resources
- %TEMP%\x7cekg_5.cmdline
- %TEMP%\x7cekg_5.out
- %TEMP%\x7cekg_5.0.vb
- %TEMP%\qXHJioGPr.resources
- %TEMP%\whatdafock.txt
- %HOMEPATH%\RCXD.tmp
- %HOMEPATH%\RCXE.tmp
- %HOMEPATH%\RCXC.tmp
- %HOMEPATH%\RCXA.tmp
- %HOMEPATH%\RCXB.tmp
- %HOMEPATH%\c\autorun.inf
- %HOMEPATH%\c\Porn.exe
- %HOMEPATH%\c\RCX10.tmp
- %HOMEPATH%\c\RCXF.tmp
- %HOMEPATH%\c\Secret.exe
- %HOMEPATH%\c\Sexy.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\yoiakis.exe
- %HOMEPATH%\c\autorun.inf
- %HOMEPATH%\yoiakis.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %TEMP%\xoEI.resources
- <Drive name for removable media>:\Sexy_backup.exe
- %TEMP%\rdaokkhb.0.vb
- %TEMP%\FPYSs.resources
- <Drive name for removable media>:\Sexy.exe
- %TEMP%\tolkndhe.out
- %TEMP%\tolkndhe.0.vb
- %TEMP%\RES22.tmp
- %TEMP%\vbc21.tmp
- %TEMP%\fpBTLk.resources
- <Drive name for removable media>:\Secret_backup.exe
- %TEMP%\h7e4fv_r.0.vb
- %TEMP%\UzzdIf.resources
- <Drive name for removable media>:\Secret.exe
- %TEMP%\rdaokkhb.out
- %TEMP%\rdaokkhb.cmdline
- %TEMP%\RES1F.tmp
- %TEMP%\vbc1E.tmp
- %TEMP%\tolkndhe.cmdline
- %TEMP%\RES28.tmp
- %TEMP%\vbc27.tmp
- %TEMP%\bgD.resources
- %TEMP%\R.resources
- %TEMP%\g-u2hpwq.0.vb
- %TEMP%\xVa.resources
- %TEMP%\JcTgLpOmk.resources
- %TEMP%\g-u2hpwq.cmdline
- %TEMP%\g-u2hpwq.out
- <Drive name for removable media>:\yoiakis_backup.exe
- <Drive name for removable media>:\yoiakis.exe
- %TEMP%\IWSzqg.resources
- %TEMP%\H.resources
- %TEMP%\RES25.tmp
- %TEMP%\of6zcj_x.out
- %TEMP%\of6zcj_x.cmdline
- %TEMP%\vbc24.tmp
- %TEMP%\of6zcj_x.0.vb
- %TEMP%\h7e4fv_r.out
- %HOMEPATH%\c\Porn.exe
- %HOMEPATH%\c\Passwords.exe
- %HOMEPATH%\Secret.exe
- %HOMEPATH%\c\Sexy.exe
- %HOMEPATH%\c\autorun.inf
- %TEMP%\vbc15.tmp
- %TEMP%\x7cekg_5.out
- %HOMEPATH%\c\Secret.exe
- %TEMP%\RES16.tmp
- %TEMP%\bktbcurd.cmdline
- %TEMP%\bktbcurd.out
- %TEMP%\RES2.tmp
- %TEMP%\vbc1.tmp
- %TEMP%\bktbcurd.exe
- %HOMEPATH%\Porn.exe
- %HOMEPATH%\Passwords.exe
- %TEMP%\bktbcurd.0.vb
- %HOMEPATH%\Sexy.exe
- %TEMP%\x7cekg_5.0.vb
- %TEMP%\FQSm.resources
- %TEMP%\WYdvjgJ.resources
- %TEMP%\jpcpk9ig.cmdline
- %TEMP%\jpcpk9ig.0.vb
- <Drive name for removable media>:\Porn_backup.exe
- %TEMP%\vbc1B.tmp
- %TEMP%\h7e4fv_r.cmdline
- <Drive name for removable media>:\Porn.exe
- %TEMP%\RES1C.tmp
- %TEMP%\qXHJioGPr.resources
- <Drive name for removable media>:\Passwords_backup.exe
- %TEMP%\x7cekg_5.cmdline
- %TEMP%\kGUQqcsJ.resources
- %TEMP%\windowsupdate.ico
- %TEMP%\vbc18.tmp
- %TEMP%\jpcpk9ig.out
- <Drive name for removable media>:\Passwords.exe
- %TEMP%\RES19.tmp
Moves the following files:
- from %HOMEPATH%\RCXE.tmp to %HOMEPATH%\Passwords.exe
- from %HOMEPATH%\c\RCXF.tmp to %HOMEPATH%\c\Sexy.exe
- from %HOMEPATH%\RCXC.tmp to %HOMEPATH%\Passwords.exe
- from %HOMEPATH%\RCXD.tmp to %HOMEPATH%\Passwords.exe
- from %HOMEPATH%\c\RCX10.tmp to %HOMEPATH%\c\Porn.exe
- from %HOMEPATH%\c\RCX13.tmp to %HOMEPATH%\c\Passwords.exe
- from %HOMEPATH%\c\RCX14.tmp to %HOMEPATH%\c\Passwords.exe
- from %HOMEPATH%\c\RCX11.tmp to %HOMEPATH%\c\Porn.exe
- from %HOMEPATH%\c\RCX12.tmp to %HOMEPATH%\c\Passwords.exe
- from %HOMEPATH%\RCX5.tmp to %HOMEPATH%\Porn.exe
- from %HOMEPATH%\RCX6.tmp to %HOMEPATH%\Passwords.exe
- from %HOMEPATH%\RCX3.tmp to %HOMEPATH%\Sexy.exe
- from %HOMEPATH%\RCX4.tmp to %HOMEPATH%\Porn.exe
- from %HOMEPATH%\RCX7.tmp to %HOMEPATH%\Passwords.exe
- from %HOMEPATH%\RCXA.tmp to %HOMEPATH%\Porn.exe
- from %HOMEPATH%\RCXB.tmp to %HOMEPATH%\Porn.exe
- from %HOMEPATH%\RCX8.tmp to %HOMEPATH%\Passwords.exe
- from %HOMEPATH%\RCX9.tmp to %HOMEPATH%\Sexy.exe
Network activity:
Connects to:
- 'ns#.##ckdate2.com':7001
- 'ns#.##ckupdate3.org':7001
- 'ns#.##ckdate2.net':7001
- 'ns#.##ckdate1.net':7001
- 'ns#.##ckdate2.org':7001
- 'ns#.##ckupdate1.com':7001
- '17#.#3.169.14':80
- 'ns#.##ckupdate1.net':7001
- 'ns#.##ckdate1.com':7001
- 'ns#.##ckupdate4.net':7001
UDP:
- DNS ASK ns#.##ckdate2.net
- DNS ASK ns#.##ckdate2.com
- DNS ASK ns#.##ckdate1.net
- DNS ASK ns#.##ckdate2.org
- DNS ASK ns#.##ckupdate3.org
- DNS ASK ns#.##ckupdate1.net
- DNS ASK ns#.##ckupdate1.com
- DNS ASK ns#.##ckdate1.com
- DNS ASK ns#.##ckupdate4.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'