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Win32.HLLW.Autoruner.54815

Aggiunto al database dei virus Dr.Web: 2011-07-22

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Microsoft Task Scheduler' = '<SYSTEM32>\tasksv32.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\Autorun.inf
  • <Drive name for removable media>:\~TempCfg\cf-p860165.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List] '<SYSTEM32>\tasksv32.exe' = '<SYSTEM32>\tasksv32.exe:*:Enabled:xLAN'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\tasksv32.exe' = '<SYSTEM32>\tasksv32.exe:*:Enabled:xLAN'
Creates and executes the following:
  • <SYSTEM32>\tasksv32.exe <Full path to virus>
Executes the following:
  • <SYSTEM32>\net.exe stop DrWebCom
  • <SYSTEM32>\sc.exe config DrWebCom start= disabled
  • <SYSTEM32>\sc.exe config SPIDERNT start= disabled
  • <SYSTEM32>\sc.exe stop DrWebCom
  • <SYSTEM32>\net1.exe stop DrWebCom
  • <SYSTEM32>\net.exe stop avgfws
  • <SYSTEM32>\sc.exe config avgfws start= disabled
  • <SYSTEM32>\sc.exe delete DrWebCom
  • <SYSTEM32>\sc.exe stop avgfws
  • <SYSTEM32>\sc.exe config DrWebEngine start= disabled
  • <SYSTEM32>\net1.exe stop DrWebEngine
  • <SYSTEM32>\net.exe stop DrWebEngine
  • <SYSTEM32>\sc.exe stop DrWebEngine
  • <SYSTEM32>\sc.exe delete DrWebEngine
  • <SYSTEM32>\sc.exe stop SPIDERNT
  • <SYSTEM32>\sc.exe delete SPIDERNT
  • <SYSTEM32>\net.exe stop SPIDERNT
  • <SYSTEM32>\net1.exe stop SPIDERNT
Injects code into
the following system processes:
  • %WINDIR%\Explorer.EXE
Searches for windows to
detect analytical utilities:
  • ClassName: 'PROCMON_WINDOW_CLASS' WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
detect programs and games:
  • ClassName: 'gdkWindowToplevel' WindowName: 'The Wireshark Network Analyzer'
Hides the following processes:
  • <Full path to virus>
  • <SYSTEM32>\tasksv32.exe
Modifies file system :
Creates the following files:
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\s1[1].exe
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\0D6B6PI5\datalog2[1].txt
  • %PROGRAM_FILES%\Wireshark\wireshark.exe
  • <SYSTEM32>\tasksv32.exe
  • C:\cwsandbox\cwsandbox.exe
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\tasksv32.exe
Deletes itself.
Network activity:
Connects to:
  • 'sv##.##telservice.su':5781
  • 'sv##.##teldatamgr.su':6303
  • '14#.#48.35.28':80
  • 'sv##.##teldatamgr.su':51930
  • 'vp####.#ntelbackupsrv.su':80
  • 'sv##.##teldatamgr.su':48912
TCP:
HTTP GET requests:
  • 14#.#48.35.28/awstats/datalog2.txt
  • vp####.#ntelbackupsrv.su/net/s1.exe
UDP:
  • DNS ASK sv##.##telservice.su
  • DNS ASK vp####.#ntelbackupsrv.su
  • DNS ASK sv##.##teldatamgr.su
Miscellaneous:
Searches for the following windows:
  • ClassName: 'TCPViewClass' WindowName: ''
  • ClassName: '#32770' WindowName: 'Regshot 1.8.2'
  • ClassName: 'PROCEXPL' WindowName: ''
  • ClassName: 'CNetmonMainFrame' WindowName: 'Microsoft Network Monitor 3.3'
  • ClassName: 'SmartSniff' WindowName: 'SmartSniff'
  • ClassName: 'CurrPorts' WindowName: 'CurrPorts'