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 %windir%\dll\rundll32.exe - Dangerous
%WinDir%\DLL\RUNDLL32.exe is Trojan/Backdoor. Kill the process %WinDir%\DLL\RUNDLL32.exe and remove %WinDir%\DLL\RUNDLL32.exe from Windows startup. File: C:\sand-box\winrar.exe Classification: Antivirus Version Last Update Result Avast 4.8.1335.0 2009.06.15 Win32:Trojan-gen {Other} AVG 8.5.0.339 2009.06.15 Clicker.ZOC BitDefender 7.2 2009.06.16 - DrWeb 5.0.0.12182 2009.06.16 BackDoor.BlackHole.3413 F-Secure 8.0.14470.0 2009.06.15 Trojan.Win32.Delf.nia NOD32 4157 2009.06.15 probably a variant of Win32/TrojanClicker.Delf.NHN Panda 10.0.0.14 2009.06.15 Trj/Clicker.AOV Symantec 1.4.4.12 2009.06.16 Trojan.Adclicker Additional information File size: 235520 bytes MD5 : e0d9f6d426c40eb7c539dc46d7d230b9 SHA1 : 95518314fe9023f0cd2e4bda019d7541391a8438 Installation When the program is executed, it creates the following registry subkeys and values: ---------------------------------- Keys added:4 ---------------------------------- HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV\0000 HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv\Security ---------------------------------- Values added:14 ---------------------------------- HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV\0000\Service: "DhcpSrv" HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV\0000\Legacy: 0x00000001 HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV\0000\ConfigFlags: 0x00000000 HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV\0000\Class: "LegacyDriver" HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV\0000\ClassGUID: "{8ECC055D-047F-11D1-A537-0000F8753ED1}" HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV\0000\DeviceDesc: "Dhcp server" HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_DHCPSRV\NextInstance: 0x00000001 HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv\Security\Security: 01 00 14 80 90 00 00 00 9C 00 00 00 14 00 00 00 30 00 00 00 02 00 1C 00 01 00 00 00 02 80 14 00 FF 01 0F 00 01 01 00 00 00 00 00 01 00 00 00 00 02 00 60 00 04 00 00 00 00 00 14 00 FD 01 02 00 01 01 00 00 00 00 00 05 12 00 00 00 00 00 18 00 FF 01 0F 00 01 02 00 00 00 00 00 05 20 00 00 00 20 02 00 00 00 00 14 00 8D 01 02 00 01 01 00 00 00 00 00 05 0B 00 00 00 00 00 18 00 FD 01 02 00 01 02 00 00 00 00 00 05 20 00 00 00 23 02 00 00 01 01 00 00 00 00 00 05 12 00 00 00 01 01 00 00 00 00 00 05 12 00 00 00 HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv\Type: 0x00000110 HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv\Start: 0x00000002 HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv\ErrorControl: 0x00000001 HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv\ImagePath: "C:\WINDOWS\DLL\RUNDLL32.exe" HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv\DisplayName: "Dhcp server" HKLM\SYSTEM\CurrentControlSet\Services\DhcpSrv\ObjectName: "LocalSystem" ---------------------------------- Values modified:0 ---------------------------------- ---------------------------------- Files added:9 ---------------------------------- C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\3PCMMHXU\ErrorPageTemplate[1] C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\3PCMMHXU\info_48[1] C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\6IMCJ0DW\bullet[1] C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\6IMCJ0DW\errorPageStrings[1] C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\LUIIOHEM\background_gradient[1] C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\LUIIOHEM\dnserrordiagoff_webOC[1] C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\VNEWMRCS\down[1] C:\Documents and Settings\LocalService\Local Settings\Temporary Internet Files\Content.IE5\VNEWMRCS\httpErrorPagesScripts[1] C:\WINDOWS\DLL\RUNDLL32.exe ---------------------------------- Files deleted:1 ---------------------------------- C:\sand-box\winrar.exe ---------------------------------- Files [attributes?] modified:0 ---------------------------------- ---------------------------------- Folders added:1 ---------------------------------- C:\WINDOWS\DLL ---------------------------------- Folders deleted:0 ---------------------------------- ---------------------------------- Total changes:29 ---------------------------------- ------------------------------------------------------------------------------------- Detected by RegRun Reanimator: Type: Auto Services Item Name: DhcpSrv Related File: C:\WINDOWS\DLL\RUNDLL32.exe Type: Running Processes Item Name: RUNDLL32.exe Related File: C:\WINDOWS\DLL\RUNDLL32.exe Removal Results: Success Number of reboot: 1 Removal: %windir%\dll\rundll32.exe is removed by RegRun.
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