Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'NetDDE' = '%PROGRAM_FILES%\Sys64\windns.exe'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%PROGRAM_FILES%\Sys64\rdbms.exe' = '%PROGRAM_FILES%\Sys64\rdbms.exe:*:Enabled:rdbms.exe'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%PROGRAM_FILES%\Sys64\RDS.exe' = '%PROGRAM_FILES%\Sys64\RDS.exe:*:Enabled:RDS.exe'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\winlogon.exe' = '<SYSTEM32>\winlogon.exe:*:enabled:@shell32.dll,-1'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%PROGRAM_FILES%\Sys64\windns.exe' = '%PROGRAM_FILES%\Sys64\windns.exe:*:Enabled:windns.exe'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Creates and executes the following:
- '%PROGRAM_FILES%\Sys64\messenger.exe'
- '%PROGRAM_FILES%\Sys64\rdbms.exe'
- '%PROGRAM_FILES%\Sys64\RDS.exe'
- '%PROGRAM_FILES%\Sys64\windns.exe'
- '%APPDATA%\file.sfx.exe' -p123456 -d%APPDATA%
- 'C:\Documents\file.exe'
- '%TEMP%\Compress0\java.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="RDS.exe" dir=in action=allow program="%PROGRAM_FILES%\Sys64\RDS.exe" enable=yes
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%PROGRAM_FILES%\Sys64\RDS.exe" "RDS.exe" ENABLE
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="windns.exe" dir=in action=allow program="%PROGRAM_FILES%\Sys64\windns.exe" enable=yes profile=public
- '<SYSTEM32>\sc.exe' start Service64
- '<SYSTEM32>\cacls.exe' %PROGRAM_FILES%\Accessories\Common /G Everyone:f
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="RDS.exe" dir=in action=allow program="%PROGRAM_FILES%\Sys64\RDS.exe" enable=yes profile=public
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="windns.exe" dir=in action=allow program="%PROGRAM_FILES%\Sys64\windns.exe" enable=yes
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="rdbms.exe" dir=in action=allow program="%PROGRAM_FILES%\Sys64\rdbms.exe" enable=yes
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%PROGRAM_FILES%\Sys64\rdbms.exe" "rdbms.exe" ENABLE
- '<SYSTEM32>\cmd.exe' /c ""%APPDATA%\stub.bat" "
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%PROGRAM_FILES%\Sys64\windns.exe" "windns.exe" ENABLE
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="rdbms.exe" dir=in action=allow program="%PROGRAM_FILES%\Sys64\rdbms.exe" enable=yes profile=public
- '<SYSTEM32>\cacls.exe' %PROGRAM_FILES%\Sys64 /G Everyone:f
Injects code into
the following system processes:
- <SYSTEM32>\winlogon.exe
Restores hooked functions in System Service Descriptor Table (SSDT).
Modifies file system :
Creates the following files:
- %TEMP%\Compress0\ssap.dll
- %TEMP%\Compress0\type.dll
- %TEMP%\Compress0\sid2.dll
- %TEMP%\Compress0\seek.dll
- %TEMP%\Compress0\seekil.dll
- %TEMP%\Compress0\unin.dll
- %TEMP%\Compress0\weben.dll
- %TEMP%\Compress0\windns.exe
- %TEMP%\Compress0\ushost.dll
- %TEMP%\Compress0\update.dll
- %TEMP%\Compress0\user.dll
- %TEMP%\Compress0\rwcs.dll
- %TEMP%\Compress0\scan.dll
- %TEMP%\Compress0\rwci.dll
- %TEMP%\Compress0\rvport.dll
- %TEMP%\Compress0\rwce.dll
- %TEMP%\Compress0\sccle.dll
- %TEMP%\Compress0\scint2.dll
- %TEMP%\Compress0\scloc.dll
- %TEMP%\Compress0\scint.dll
- %TEMP%\Compress0\scday.dll
- %TEMP%\Compress0\scen.dll
- %TEMP%\Temporary Internet Files\Content.IE5\0SK3VN67\desktop.ini
- %TEMP%\Temporary Internet Files\Content.IE5\ZWT5P52L\desktop.ini
- %TEMP%\Temporary Internet Files\Content.IE5\desktop.ini
- %PROGRAM_FILES%\Accessories\Common\KB_log.txt
- %PROGRAM_FILES%\Accessories\Common\PC_Active_Time.txt
- %TEMP%\Temporary Internet Files\Content.IE5\ZNDANI16\desktop.ini
- %PROGRAM_FILES%\Accessories\Common\Websites_Summary.txt
- %PROGRAM_FILES%\Accessories\Common\Websites_Detail.txt
- %PROGRAM_FILES%\Accessories\Common\Online_Time.txt
- %TEMP%\Temporary Internet Files\Content.IE5\NMT0KHZ2\desktop.ini
- %TEMP%\History\History.IE5\desktop.ini
- %PROGRAM_FILES%\Sys64\messenger.exe
- %PROGRAM_FILES%\Sys64\RDS.exe
- %PROGRAM_FILES%\Sys64\windns.exe
- %TEMP%\Compress0\zipinfo.txt
- %PROGRAM_FILES%\Sys64\rdbms.exe
- %WINDIR%\zipinfo.txt
- <SYSTEM32>\inobject.dll
- %PROGRAM_FILES%\Accessories\Common\desktop.ini
- <SYSTEM32>\MSWINSCK.OCX
- %WINDIR%\refsdm.dll
- %WINDIR%\ntfsv.dll
- %TEMP%\Compress0\rvhost.dll
- %TEMP%\Compress0\emoo.dll
- %TEMP%\Compress0\ftde.dll
- %TEMP%\Compress0\emon.dll
- %TEMP%\Compress0\emine.dll
- %TEMP%\Compress0\eminu.dll
- %TEMP%\Compress0\ften.dll
- %TEMP%\Compress0\ftsv.dll
- %TEMP%\Compress0\fttx.dll
- %TEMP%\Compress0\ftps.dll
- %TEMP%\Compress0\ftin.dll
- %TEMP%\Compress0\ftpa.dll
- %TEMP%\nsg2.tmp
- %TEMP%\Compress0\ass.dll
- C:\Documents\file.exe
- %APPDATA%\stub.bat
- %APPDATA%\file.sfx.exe
- %TEMP%\Compress0\delkl.dll
- %TEMP%\Compress0\emfz.dll
- %TEMP%\Compress0\emfzb.dll
- %TEMP%\Compress0\emdc.dll
- %TEMP%\Compress0\dete.dll
- %TEMP%\Compress0\dunin.dll
- %TEMP%\Compress0\oem.dll
- %TEMP%\Compress0\port.dll
- %TEMP%\Compress0\ntfsv.dll
- %TEMP%\Compress0\messenger.exe
- %TEMP%\Compress0\MSWINSCK.OCX
- %TEMP%\Compress0\pwhost.dll
- %TEMP%\Compress0\resu.dll
- %TEMP%\Compress0\rmdesk.dll
- %TEMP%\Compress0\refsdm.dll
- %TEMP%\Compress0\rdbms.exe
- %TEMP%\Compress0\RDS.exe
- %TEMP%\Compress0\inuser.dll
- %TEMP%\Compress0\java.exe
- %TEMP%\Compress0\inter.dll
- %TEMP%\Compress0\ftus.dll
- %TEMP%\Compress0\inmsg.dll
- %TEMP%\Compress0\kp764.sys
- %TEMP%\Compress0\mailkl.dll
- %TEMP%\Compress0\mailsc.dll
- %TEMP%\Compress0\mail.dll
- %TEMP%\Compress0\kp786.sys
- %TEMP%\Compress0\kpx.sys
Sets the 'hidden' attribute to the following files:
- %TEMP%\Temporary Internet Files\Content.IE5\ZNDANI16\desktop.ini
- %TEMP%\Temporary Internet Files\Content.IE5\NMT0KHZ2\desktop.ini
- %TEMP%\History\History.IE5\desktop.ini
- %TEMP%\Temporary Internet Files\Content.IE5\ZWT5P52L\desktop.ini
- %WINDIR%\ntfsv.dll
- %TEMP%\Temporary Internet Files\Content.IE5\desktop.ini
- %TEMP%\Temporary Internet Files\Content.IE5\0SK3VN67\desktop.ini
Deletes the following files:
- %TEMP%\Compress0\rwce.dll
- %TEMP%\Compress0\rwci.dll
- %TEMP%\Compress0\rvhost.dll
- %TEMP%\Compress0\rvport.dll
- %TEMP%\Compress0\sccle.dll
- %TEMP%\Compress0\scday.dll
- %TEMP%\Compress0\rwcs.dll
- %TEMP%\Compress0\scan.dll
- %TEMP%\Compress0\pwhost.dll
- %TEMP%\Compress0\rdbms.exe
- %TEMP%\Compress0\oem.dll
- %TEMP%\Compress0\port.dll
- %TEMP%\Compress0\resu.dll
- %TEMP%\Compress0\rmdesk.dll
- %TEMP%\Compress0\RDS.exe
- %TEMP%\Compress0\refsdm.dll
- %TEMP%\Compress0\update.dll
- %TEMP%\Compress0\user.dll
- %TEMP%\Compress0\type.dll
- %TEMP%\Compress0\unin.dll
- %TEMP%\Compress0\windns.exe
- %TEMP%\Compress0\zipinfo.txt
- %TEMP%\Compress0\ushost.dll
- %TEMP%\Compress0\weben.dll
- %TEMP%\Compress0\scint2.dll
- %TEMP%\Compress0\scloc.dll
- %TEMP%\Compress0\scen.dll
- %TEMP%\Compress0\scint.dll
- %TEMP%\Compress0\sid2.dll
- %TEMP%\Compress0\ssap.dll
- %TEMP%\Compress0\seek.dll
- %TEMP%\Compress0\seekil.dll
- %TEMP%\Compress0\emoo.dll
- %TEMP%\Compress0\ftde.dll
- %TEMP%\Compress0\eminu.dll
- %TEMP%\Compress0\emon.dll
- %TEMP%\Compress0\ftpa.dll
- %TEMP%\Compress0\ftps.dll
- %TEMP%\Compress0\ften.dll
- %TEMP%\Compress0\ftin.dll
- %TEMP%\Compress0\dete.dll
- %TEMP%\Compress0\dunin.dll
- %TEMP%\Compress0\ass.dll
- %TEMP%\Compress0\delkl.dll
- %TEMP%\Compress0\emfzb.dll
- %TEMP%\Compress0\emine.dll
- %TEMP%\Compress0\emdc.dll
- %TEMP%\Compress0\emfz.dll
- %TEMP%\Compress0\mail.dll
- %TEMP%\Compress0\mailkl.dll
- %TEMP%\Compress0\kp786.sys
- %TEMP%\Compress0\kpx.sys
- %TEMP%\Compress0\MSWINSCK.OCX
- %TEMP%\Compress0\ntfsv.dll
- %TEMP%\Compress0\mailsc.dll
- %TEMP%\Compress0\messenger.exe
- %TEMP%\Compress0\ftus.dll
- %TEMP%\Compress0\inmsg.dll
- %TEMP%\Compress0\ftsv.dll
- %TEMP%\Compress0\fttx.dll
- %TEMP%\Compress0\java.exe
- %TEMP%\Compress0\kp764.sys
- %TEMP%\Compress0\inter.dll
- %TEMP%\Compress0\inuser.dll
Modifies the HOSTS file.
Network activity:
Connects to:
- 'or##xp.com':443
- '19#.#4.157.58':17173
- '19#.#4.157.58':27171
- 'ca##md.com':443
- 'dk##up.com':443
- 'uu##lc.com':443
- '19#.#4.157.58':14001
- '19#.#4.157.58':37
- 'il#.#renz.pl':80
- '19#.#4.157.58':17175
- '19#.#4.157.58':27181
- 'www.go##le.net':80
UDP:
- DNS ASK en##uw.com
- DNS ASK jp##dz.com
- DNS ASK uu##lc.com
- DNS ASK ca##md.com
- DNS ASK dk##up.com
- DNS ASK www.go##le.net
- DNS ASK il#.#renz.pl
- DNS ASK or##xp.com
- DNS ASK gy##mj.com
- DNS ASK is##uc.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'NDDEAgnt' WindowName: 'NetDDE Agent'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'EDIT' WindowName: '(null)'
