For example, they can replace words in the text of a website, flip or replace images, or modify other types of data flowing to and from the target. Ettercap isn’t the only tool for this, nor is it the most modern. Other tools, such as Bettercap, claim to do what Ettercap does but more effectively. Ettercap is a graphical user interface. We can have may LAN attcks MITM atacks on that by easily. You can install it on linux just. Sudo apt-get install ettercap. Run it from terminal using. There on up bars you can find the MITM tab where there is a ARP spoof.
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CaptainMcSpankyPantsUpdated filter illustrations with ESP blocking good examples62d8056Oct 4, 2014
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############################################################################ |
# # |
# ettercap - etter.filter.examples - filtration system source file # |
# # |
# Copyright (G) ALoR amp; NaGA # |
# # |
# This system is free of charge software program; you can redistribute it and/or modify # |
# it under the terms of the GNU Common Public Permit as published by # |
# the Free of charge Software Basis; either version 2 of the License, or # |
# (at your choice) any later edition. # |
# # |
############################################################################ |
# make sure this filtration system will not be used. |
get away; |
# display a information if the tcp port is certainly 22 |
if (ip.proto TCP) |
if (tcp.src 22 tcp.dst 22) |
msg('SSH packetn'); |
# log all telnet visitors, also execute./program on every box |
if (ip.proto TCP) |
if (tcp.src 23 tcp.dst 23) |
sign(DATA.information, './logfile.sign'); |
professional('./program'); |
# log all visitors except http |
if (ip.proto TCP amp;amp; tcp.src != 80 amp;amp; tcp.dst != 80) |
log(DATA.information, './logfile.journal'); |
# some operation on the payload of the packet |
if ( DATA.information + 20 0x4142 ) |
DATA.information + 20 = 0x4243; |
else |
DATA.information = 'modified'; |
DATA.information + 20 = 0x4445; |
# drop any packet filled with 'ettercap' |
if (search(DECODED.data, 'ettercap')) |
msg('some one is talking about us.n'); |
drop; |
wipe out; |
# log ssh decrypted packets coordinating the regexp |
if (ip.proto TCP) |
if (tcp.src 22 tcp.dst 22) |
if (regex(DECODED.information, '.login.')) |
log(DECODED.information, './decryptedlog'); |
# dying packets |
if (ip.ttl lt; 5) |
msg('The box will perish soonn'); |
# the same for IPv6 but create certain we really see IPv6 packets doing such unimportant exams |
if (eth.proto IP6 amp;amp; ipv6.hl lt; 5) |
msg('The IPv6 box will expire soonn'); |
# chain assessment at a provided balance |
if (Information.information + 40 'ette') |
journal(DATA.information, './logfile'); |
# inject a file after a specific packet |
if (tcp.src 21 amp;amp; research(DATA.information, 'origin')) |
inject('./fakeresponse'); |
# replace the entire packet with another |
if (tcp.src 23 amp;amp; research(DATA.data, 'microsoft')) |
drop; |
inject('./faketelnet'); |
# Modifying binary data by making use of external instructions |
if (udp.dst 53 amp;amp; pcreregex(DATA.data, '.a03comx00.')) |
log(DATA.data, '/tmp/payload'); |
fall; |
execinject('/bin/sed 's/back button03comx00/x02myx04pagex02dex00/g' /tmp/payload'); |
udp.len += 7; |
professional('/trash can/rm /tmp/payload'); |
msg('faked'); |
# filter just a particular ip tackle |
if (ip.src '192.168.0.2') |
drop; |
# do the same for IPv6 |
if (ipv6.src '2001:db8::1') |
fall; |
# mixed both IPv4 and IPv6 |
if (eth.proto IP amp;amp; ip.dst '192.168.0.2') |
msg('drop IPv4'); |
fall; |
if (eth.proto IP6 amp;amp; ipv6.dst '2001:db8::1') |
msg('fall IPv6'); |
drop; |
# translate the slot of the tcp packet from 80 to 81 |
if (tcp.dst 80) |
tcp.dst -= 1; |
tcp.dst += 2; |
# identify and mangle ESP packets |
if (ip.proto ESP) |
DATA.data = 'DEADDECAF'; |
# eof |
# vim:ts=3:expandtab |
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