A sniffer is a program that monitors and analyzes network traffic, detecting bottlenecks and problems.

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Doesn't seem to be able to capture the packets I need [ANSWERED]

I've been trying to capture Telegram messaging application's packets (for my class project) but I couldn't get anything out of the punch of captured packets I got. Telegram does AES-256 encryption ...
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1answer
254 views

Etterfilter file-contents injection

On the etterfilter(8) man page, there is a section about the inject() function, which takes the contents of a file and injects it in a packet, or as its own packet when coupled with drop(): ...
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1answer
142 views

Anti-sniffer for USB [closed]

I'm looking for a Windows utility that can list all drivers, driver-filters, services, sniffers and other information for a selected USB port. I want to check if my "USB connection" is confidential. ...
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3answers
2k views

Can an attacker sniff physical network traffic through WiFi?

So, I am wondering - is it possible for an attacker to sniff traffic on an Ethernet connection if they are not physically plugged into the modem/router hardware but they are connected through wifi? In ...
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2answers
72 views

Proving SSL need

I need to prove the need we have to install SSL certificates in our webservers. For that I've been requested to try obtaining sample credentials (in lab enviroment) during a http authentication ...
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1answer
29 views

How can this kind of attack be countermeasured by using a sniffer?

As an IT admin, what can I do to countermeasure an attack performed like this page explains? http://www.pivpn.net/2015/08/hide-your-ass-hide-by-mac-address-and.html What they do is to put a raspberry ...
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0answers
49 views

Rebuilding images from raw traffic [closed]

I've got a tcpflow log file that has the following: HTTP/1.1 200 OK Server: nginx Date: Sat, 20 Jun 2015 02:49:29 GMT Content-Type: image/jpeg Content-Length: 12177 Last-Modified: Wed, 10 Jun 2015 ...
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3answers
146 views

Sniffer attack on mobile [on hold]

I have Nokia lumia 625. And a guy hacked it using sniffer. That's how much I know about it. He has access to all my online texts(eg. Whatsapp, messenger etc) . and also to offline carrier text ...
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0answers
203 views

Mobile traffic sniffing using Cain

As far as I know - and please correct me if I'm wrong - Cain does not support WiFi cards. So if an attacker wants to perform ARP poisoning without being connected through Ethernet to the ...
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1answer
2k views

Sniffing WiFi with tcpdump on an iPad [closed]

I have tcpdump installed on my iPad which is connected to WiFi (WPA2). How do I capture packets sent/received by other devices on same network? UPD: iPad 1st gen, latest (5.1.x) iOS available.
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1answer
44 views

Padding of 802.11 packet with 0's in libpcap [closed]

I am trying to send probe request to Access Points.But whenever I send a probe request packet it is padded with 0's i.e I see two packets on wireshark for every packet I send : a non-padded packet and ...
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2answers
1k views

Weird IP addresses showing up on my server

I have a personal server located in the US, I use it to execute code which requires a lot of resources. I sometimes have apache running on my server, to test php code. I recently left my apache server ...
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3answers
220 views

How can I detect OS by sniffing network traffic?

Is it possible to sniff a network (WLAN) and find out what operating system are installed on network clients (PCs/Phones etc)? I am using Ubuntu.
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2answers
266 views

How common and how easy is sniffing plaintext communication?

So the first reason we give to encrypt content is to prevent against a man in the middle sniffing all data. That is the reason ssh is used and not telnet for example. But in today's networks where ...
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2answers
836 views

DNS Cache Poisoning as a Foil to SSL

I recently learned a bit more about DNS cache poisoning, and my understanding of the basic way it works is by editing the DNS cache so that when the victim types in, say, www.google.com they get the ...
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1answer
1k views

What's the best route to watch network traffic on our networks?

We have a single switch that routes all our different offices around the country using Meraki VPN. We have a VM on the switch (to the extent it can see all subdomains and different IP addresses in our ...
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2answers
152 views

How to know what domains other clients visit if I have no access to the router?

As a client computer, I am behind a router to which I have no access. Is it possible for me to know the domains or IP addresses that other clients visit? I want to know which clients often download ...
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2answers
13k views

Can wifi administrator see data transfer over android phone. precisely gmail app communication

sometimes I connect to wifi outside my home in office , restaurants and friends house. I want to know if wifi administrator can see the exact data my android phone communicates? I am only concerned ...
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1answer
46 views

Browser Unable to Fully Authenticate HTTPS

I'm attempting to fully verify the HTTPS encryption using Chrome & Firefox but both browsers currently display the connection as 'including resources which are not secure'. I have tried using ...
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1answer
287 views

Can anyone with access to root CA private key decrypt HTTPS traffic?

Can anyone with access to root CA private key decrypt HTTPS traffic of sites using certificate signed by that CA ? and if yes do he need to be man-in-the-middle or just monitoring traffic is ...
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3answers
4k views

Do i need to have Airpcap?

Hi I am learning system security in an online course, in a practical experiment I tried to monitor the traffic through my router using wireshark1.10.3 but i have a feeling that it only sensing traffic ...
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1answer
382 views

Can you sniff broadband connections? And how you secure that?

I know that you can sniff data which is transferred over wifi. Can you do that with broadband (wired)? And how can you secure the network, so nobody could sniff data both over wifi, and broadband?
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2answers
1k views

Cain and Abel Sniffing vs APR

I have recently been performing a security audit at work (sanctioned of course) and have seen some interesting behaviour from Cain and Abel. I've purposefully avoided using APR so that my co-workers ...
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1answer
480 views

Can the FiddlerCore library be used for Malware (e.g. MitM attacks)?

I've used the excellent Fiddler web debugging software before and have recently come across the Fiddler Core headless .NET library which gives you all the abilities of Fiddler in library form. It's ...
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1answer
123 views

How can I remotely detect versions? [closed]

I want to know how to remotely detect a software version. Once attacker knows the version installed, he can exploit published vulnerabilities. So it will be useful to know it when doing penetration ...
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1answer
955 views

Good book about Scapy [closed]

Is there any good learning resources for Scapy apart from the official documentation? I am looking for a good book about the Scapy
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4answers
130 views

Risks of using HTTP

What are the risks of using HTTP instead of HTTPS assuming that there isn't any rogue hacker sitting on my personal WIFI network waiting to sniff my traffic? Can a hacker sit in his boat in the ...
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1answer
46 views

DNS resolution attacks by flooding spoofed replies

Each DNS request has an ID of 16bits. In the event that an adversary is unable to sniff the query, a way to spoof the DNS reply is to flood the resolver with many replies. Request from victim Query ...
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1answer
81 views

localhost to localhost ICMP traffic that is suspicious.. any idea of what is creating this?

I keep seen this on my tcpdump output.. is prob something very simple and logical but I can't see to see any process with lsof or netstat doing a ICMP request to it's own 127.0.0.1 every 2-3 secs... ...
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1answer
63 views

Is it possible to bypass sniffing when using port mirroring?

INTERNET <-A-> ROUTER <-B-> PC Let's theoretically think we mirror the port on a ROUTER to a file. So the full network traffic on it. Question: is it possible to still have ...
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1answer
139 views

Sniffing external networks from a public network (place)

There is something that I can not understand. If you are preparing, building up an attack from a public place (coffee shop, restaurant ect.). How can you be tracked by law enforcement? I'm asking ...
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1answer
84 views

sniff mobile application to find whether packages sent to the third person [closed]

I suspect that my messages via Viber are being sent to another person - because to my mobile have access a lot of people and it could be possible that somebody installed there some software or ...
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1answer
215 views

Dump SSL traffic from a Java applet

I have a smartcard that can be read by websites using a Java applet (see http://www.springcard.com/online/applet_pcsc/). I would like to monitor and is to replay packets going from this java applet to ...
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1answer
353 views

Sniff email content inside network [closed]

I use Cain and Abbel and I want to see the email content. If you help me becouse I don`t know to see the content. I see the email in the section password but I need to see the email content . I can ...
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2answers
533 views

honeyd is still a good alternative?

I've been investigating to deploy a honeypot for research purpose, Honeyd seems like the most popular and adequate option to my needs, but it seems too old, the last version of this software was ...
0
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2answers
216 views

Proxy traffic via MITM script

I want to log and modify outbound traffic on a Linux machine. I currently have one program that sends requests out to the internet, I would like to process these requests and their responses via ...
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3answers
253 views

If someone has access to VPN and your computer, is there a point of using VPN?

If someone sniffs requests coming from my computer and my VPN's computer, there's no point using VPN, right? Because they can see the time when I made a request to my VPN and they can analyze all of ...
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1answer
330 views

Fishy: VMware sends all traffic through akamai

I'm running Linux inside of VMware on the Mac, and on Linux I'm running a program that has connections open to perhaps 4 different machines. On the OS/X side however VMware has only 1 active network ...
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1answer
127 views

SSL and Strategy to prevent destination URL from being revealed

Googling the subject "sniffing out / spying on SSL secured communications" one finds many references to being able to make some good guesses about the "target destination" once the path length is ...
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1answer
181 views

TCP IN connection from another user in my home network. Is it safe?

I'm using Comodo Firewall and I noticed that sometimes I'm getting TCP IN connection from another IP address in my home network (only one router and few wireless users): TCP IN | 192.168.1.50 | ...
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1answer
182 views

How do the authorities know who's downloading protected software?

Out of curiosity do the web based file hosting services such as Oron and Rapidshare store information about who downloads what? I ask because I'm wondering, when someone is "caught" downloading ...
0
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2answers
311 views

Hacking machines using internet packets [closed]

I have a friend (X) who hacked the whatsapp account of someone (Y) using iphone. He told me that he sent a packet to the iphone of Y that appears as a normal whatsapp message but now he can see all ...
0
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0answers
41 views

Sniff GSM packets Wireshark [duplicate]

Possible Duplicate: Smartphone / GSM Sniffer I noticed in a video on youtube is possible to sniff gsm traffic using wireshark. How is this possible ? Do I need a GSM modem to acheive this ...
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1answer
1k views

Monitor data a program sends to internet [duplicate]

Possible Duplicate: How do i log all my internet-connections I have a program that connects to the Internet, this program apparently is sending out my mac address and computer information ...
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1answer
181 views

Sniffing my networks traffic illegal? [closed]

So this is a pretty straight forward question. If I setup a free and open wifi access point called "Free&Tots-Secure" then sniff all the traffic of people that connect to it, does that violate ...
-1
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1answer
61 views

Why does the router fall when performing ARP Poisoning?

I am using dsniff and ettercap and when I start ARP Poisoning the router falls. Why does that happen? I think I might be overwhelming it or there is a problem with the router.
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votes
3answers
320 views

How to capture the traffic of a computer in my LAN?

I have a machine with the Windows 10 preview installed and I want to capture all the traffic it sends for a day and then block all the MS hosts it sent data to without my direct permission. I don't ...
-3
votes
1answer
743 views

How to convert some packets in a readable format [closed]

I am looking for a tool for osx, that can convert this raw data in some readable format. Testing my wifi network, I began sniffing my packets, and ran tcpflow -i en1 -c I want to get the sniffed ...