Nombre: BDS/IRCBot.AQ Descubierto: 30/11/2011 Tipo: Servidor Backdoor En circulación (ITW): No Número de infecciones comunicadas: Bajo Potencial de propagación: Bajo Potencial dañino: Medio Tamaño: 422912 Bytes Suma de control MD5: f4888616ec030455b529304453e190a6 Versión del VDF: 7.11.18.139 - miércoles, 30 de noviembre de 2011Versión del IVDF: 7.11.18.139 - miércoles, 30 de noviembre de 2011
General Método de propagación: • No tiene rutina propia de propagación Alias: • Kaspersky: Trojan-Spy.MSIL.Agent.fof • Bitdefender: Trojan.Generic.5717619 • Microsoft: VirTool:MSIL/Injector.P • Grisoft: PSW.Generic8.CBQC • Eset: probably a variant of MSIL/Injector.CF trojan • GData: Trojan.Generic.5717619 • Norman: Trojan W32/Suspicious_Gen2.LKWMX Plataformas / Sistemas operativos: • Windows 2000 • Windows XP • Windows 2003 • Windows Vista • Windows Server 2008 • Windows 7 Efectos secundarios: • Se puede utilizar para modificar la configuración del sistema que permite o aumenta el comportamiento del malware potencial. • Suelta ficheros • Modificaciones en el registro • Roba informaciones Ficheros Se copia a sí mismo en las siguientes ubicaciones: • %TEMPDIR% \%12 digit random character string%.exe • %APPDATA%\%12 digit random character string%.exe • %WINDIR% \install\winup32.exe Elimina la copia inicial del virus. Elimina los siguientes ficheros: • %TEMPDIR% \%nombre del ordenador% .txt • %TEMPDIR% \%nombre del ordenador% 7 • %TEMPDIR% \%nombre del ordenador% 8 Crea los siguientes ficheros: – Fichero no malicioso: • %APPDATA%\%nombre del ordenador% log.dat – %TEMPDIR% \delete.bat Además, el fichero es ejecutado después de haber sido creado. Este fichero batch es empleado para eliminar un fichero. Registro Añade uno de los siguientes valores a cada clave del registro, para ejecutar los procesos al reiniciar el sistema: – [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] • "Audio HD Driver"="%TEMPDIR% \\%12 digit random character string%.exe" – [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] • "Audio HD Driver"="%TEMPDIR% \\%12 digit random character string%.exe" – [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] • "HKLM"="c:\windows\\install\\winup32.exe" – [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] • "HKCU"="c:\windows\\install\\winup32.exe" Añade las siguientes claves del registro para ejecutar los servicios al iniciar el sistema: – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .aif\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .aifc\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .aiff\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .asf\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .asx\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .au\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .avi\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .bmp\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .css\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .dib\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .doc\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .dvr-ms\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .emf\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .gif\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .htm\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .html\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .htm\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .html\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .ico\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .IVF\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .jfif\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .jpe\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .jpeg\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .jpg\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .m1v\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .m3u\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mid\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .midi\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mp2\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mp2v\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mp3\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mpa\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mpe\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mpeg\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mpg\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mpv2\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .png\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .rmi\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .rtf\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .snd\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .tif\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .tiff\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .txt\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wav\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wax\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wm\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wma\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wmf\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wmv\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wmx\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wpl\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wri\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wvx\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .xml\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .xsl\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .zip\OpenWithProgids] • (null) Añade las siguientes claves al registro: – [HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\ {04P34X25-047M-8IOY-5N0F-0UD5J4UX071D}] • "StubPath"="c:\windows\\install\\winup32.exe Restart" – [HKCU\Software\pwNd b1tch] • "FirstExecution"="29/02/2012 -- 10:15" • "NewIdentification"="pwNd b1tch" • (null) – [HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\ {04P34X25-047M-8IOY-5N0F-0UD5J4UX071D}] • "StubPath"="c:\windows\\install\\winup32.exe" – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .eml\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mht\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .mhtml\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .nws\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .URL\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wdp\OpenWithProgids] • (null) – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\ .wmp\OpenWithProgids] • (null) Modifica la siguiente clave del registro: – [HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced] Valor anterior: • "Hidden"=dword:00000001 Nuevo valor: • "Hidden"=dword:00000002 Backdoor (Puerta trasera) Servidor contactado: El siguiente: • **********.zapto.org Envía informaciones acerca de: • Contraseñas guardadas • Las informaciones recolectadas, descritas en la sección Informaciones diversas Controlador de eventos: Crea los siguientes controladores de eventos: • ReadProcessMemory • WriteProcessMemory • SetWindowsHook • CreateRemoteThread • CopyFile • CreateProcess • CreateFile • GetWindowsDirectory • GetSystemDirectory • LsaRetrievePrivateData • RasDefaultCredentials • LookupAccountName • CredEnumerate • CryptUnprotectData • PStoreCreateInstance Serie de caracteres: Además, incluye las siguientes series de caracteres: • pstorec.dll • WindowsLive:name • rasphone.pbk
Descripción insertada por Wensin Lee el lunes, 2 de abril de 2012 Descripción actualizada por Wensin Lee el lunes, 2 de abril de 2012
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