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martyr

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Posts posted by martyr

    How to use Ettercap / sniff network over WiFi?

    in Questions

    Posted · Edited by martyr

    Hello everyone,

    I am trying to sniff a network.

    Adapter TL-WN722N

    Target AP signal: %80-85

    Target network topology: 1 router, 15 clients (mostly windows)

    My steps are:

    echo 1 > /proc/sys/net/ipv4/ip_forward

    airmon-ng start wlan0

    going to /etc/ettercap/etter.conf to set:

    ec_uid = 0
ec_gid = 0 

--

Commenting out iptables

# if you use iptables:
redir_command_on = "iptables -t n....
redir_command_off = "iptables -t ......

    and then

    ettercap -G

    Sniff -> Unified Sniffing, selecting adapter wlan0

    Hosts -> Scan Hosts -> Add victims to target list and then MITM->Arp and then Start->Start Sniffing

    And then running

    dsniff -i wlan0

    to sniff interesting packets...

    Okay everything works great until here.

    Sometimes, ettercap kills the connection of client.

    As far i understand, i am forwarding packets with ARP Poisoning.

    So here are my questions:

    - Is that possible to sniff network in "passive" or "unoffensive" mode?

    Ettercap has "Unoffensive" option but if i go with that, i can't scan hosts.

    I can't understand by.

    - My purpose is that just sniffing network, not ALTER or EDIT any packets. Just sniffing.

    - How can i start a proper sniffing?

    My target AP has %80-85 signal quality.

    No packet loss to gateway.

    Any suggestions would be great.

    Thanks.

    Alfa Awus036H, strange behaviour and dropped connection

    in Questions

    Posted

    Hello everyone,

    I have ordered Alfa Awus036H (RTL8187 chipset) about 1 week ago and still trying to make it working with Kali.
    Let me explain the whole issue:

    I have running Kali in my both desktop & laptop.
    Kali is working under VMware environment also i have tested with Kali LiveCD to remove VM layer.

    However, my connection is dropping every 1-2 minutes.
    Actually connection drops on some actions like:
    - Running ettercap
    - Any ARP command
    - Port scanning

    My purpose is not dealing with WEP/WPA cracking, i would like to use Ettercap or other tools for ARP poisoning.

    It looks like device is not responding at all, i have to re-plug it to USB.
    And also, i have tested it on Windows, connection is really slow.

    I have a TP-Link TL-WN722N also, trying to download 1000mb test file on both adapters (http://ipv4.download.thinkbroadband.com/1GB.zip)

    TP-Link downloads with 3.4 MB/s

    Alfa downloads with 250 kb/s

    I have changed the USB cable with USB Y-cable, not changing anything.
    I made further tests and plugged my TP-Link adapter (Atheros chipset) and everything seems fine.

    There are mixed responses and solutions for my situtation, i have tried all. (Disabling network-manager, setting TX power, trying to install drivers which is unnecessary on Kali)
    I am willing to order a new adapter if Alfa is really buggy on Kali (or any OS)

    If you have a brand/model suggestion for ARP poisoning purposes, that would be great.

    However, i would like to find a solution and the root of issue.
    Any ideas on my situtation?
    I can send detailed logs, even enable remote vnc or anything to resolve this.

    Thank you all.

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