Virus: TR/PSW.Magania.awur Date discovered: 16/03/2009 Type: Trojan In the wild: Yes Reported Infections: Low to medium Distribution Potential: Low to medium Damage Potential: Low to medium Static file: Yes File size: 171.453 Bytes MD5 checksum: 03e3efa29b3ca7f0d94e6141ab3fcec4 IVDF version: 7.01.02.177 - Monday, March 16, 2009
General Method of propagation: • Autorun feature Aliases: • Mcafee: Generic PWS.ak trojan • Sophos: Mal/EncPk-HI • Panda: W32/Lineage.KDF • Eset: Win32/PSW.OnLineGames.NNU • Bitdefender: Trojan.PWS.Onlinegames.KBSG Platforms / OS: • Windows 2000 • Windows XP • Windows 2003 Side effects: • Downloads a malicious file • Drops malicious files • Lowers security settings • Registry modification Files It copies itself to the following locations: • %SYSDIR% \oukdfgr.exe • %drive% \lhylec9x.cmd The following files are created: – %drive% \autorun.inf This is a non malicious text file with the following content: • %code that runs malware% – %SYSDIR% \bgdferw0.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Vundo – %SYSDIR% \hyrteas0.dll Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.Magan.awus.9 It tries to download a file: – The location is the following: • http://nhjuy1.com/hg2/********** At the time of writing this file was not online for further investigation. Registry One of the following values is added in order to run the process after reboot: – [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] • "hjdsdse"="%SYSDIR% \oukdfgr.exe" The following registry keys are added: – [HKLM\SOFTWARE\Classes\TypeLib\ {F171A442-7AF5-43E1-AFED-EDC826A1B0F5}\1.0\HELPDIR] • "@"="%SYSDIR% \" – [HKLM\SOFTWARE\Classes\CLSID\ {F171A450-7AF5-43E1-AFED-EDC826A1B0F5}] • "@"="IEHlprObj Class" – [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1] • "@"="IEHlprObj Class" – [HKLM\SOFTWARE\Classes\TypeLib\ {F171A442-7AF5-43E1-AFED-EDC826A1B0F5}\1.0] • "@"="IEHelper 1.0 Type Library" – [HKLM\SOFTWARE\Classes\Interface\ {F171A44F-7AF5-43E1-AFED-EDC826A1B0F5}\ProxyStubClsid] • "@"="{00020424-0000-0000-C000-000000000046}" – [HKLM\SOFTWARE\Classes\TypeLib\ {F171A442-7AF5-43E1-AFED-EDC826A1B0F5}\1.0\FLAGS] • "@"="0" – [HKLM\SOFTWARE\Classes\Interface\ {F171A44F-7AF5-43E1-AFED-EDC826A1B0F5}\ProxyStubClsid32] • "@"="{00020424-0000-0000-C000-000000000046}" – [HKLM\SOFTWARE\Classes\Interface\ {F171A44F-7AF5-43E1-AFED-EDC826A1B0F5}\TypeLib] • "@"="{F171A442-7AF5-43E1-AFED-EDC826A1B0F5}" • "Version"="1.0" – [HKLM\SOFTWARE\Classes\CLSID\{F171A450-7AF5-43E1-AFED-EDC826A1B0F5}\ ProgID] • "@"="IEHlprObj.IEHlprObj.1" – [HKLM\SOFTWARE\Classes\Interface\ {F171A44F-7AF5-43E1-AFED-EDC826A1B0F5}] • "@"="IIEHlprObj" – [HKLM\SOFTWARE\Classes\CLSID\{F171A450-7AF5-43E1-AFED-EDC826A1B0F5}\ VersionIndependentProgID] • "@"="IEHlprObj.IEHlprObj" – [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer] • "@"="IEHlprObj.IEHlprObj.1" – [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID] • "@"="{F171A450-7AF5-43E1-AFED-EDC826A1B0F5}" – [HKLM\SOFTWARE\Classes\IEHlprObj.IEHlprObj] • "@"="IEHlprObj Class" – [HKLM\SOFTWARE\Classes\TypeLib\ {F171A442-7AF5-43E1-AFED-EDC826A1B0F5}\1.0\0\win32] • "@"="%SYSDIR% \bgdferw0.dll" – [HKLM\SOFTWARE\Classes\CLSID\{F171A450-7AF5-43E1-AFED-EDC826A1B0F5}\ InprocServer32] • "@"="%SYSDIR% \bgdferw0.dll" • "ThreadingModel"="Apartment" The following registry keys are changed: – [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ Connections] New value: • "DefaultConnectionSettings"=hex:46,00,00,00,04,00,00,00,09,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,04,00,00,00,00,00,00,00,20,13,5D,99,EF,74,CA,01,00,00,00,00,00,00,00,00,00,00,00,00,01,00,00,00,02,00,00,00,C0,A8,6B,64,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00 – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced] New value: • "Hidden"=dword:0x00000002 • "ShowSuperHidden"=dword:0x00000000 – [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ Folder\Hidden\SHOWALL] New value: • "CheckedValue"=dword:0x00000000 File details Runtime packer: In order to aggravate detection and reduce size of the file it is packed with a runtime packer.
Description inserted by Petre Galan on Friday, December 4, 2009 Description updated by Petre Galan on Friday, December 4, 2009
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