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

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Reassemble sniffed packets [closed]

I am attempting to analyse my WiFi network with on Mac OS X, is there a tool to reassemble TCP stream from Wireshark capture. I would like to see the entire HTML pages that are passing through the ...
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1answer
106 views

Security implications for two applications communicating with TCP/IP on localhost

Considering this for the local loopback connection: - It is implemented entirely within the operating system's networking software and passes no packets to any network interface controller. If ...
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1answer
1k views

Which part of the eapol packets contain WPA password Hash?

I have captured wifi traffic from a WPA network using Wireshark. I filtered the results for "eapol" packets and noted in the info column there are message type 3 and type 1. I believe this is two ...
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1answer
2k views

How can I decrypt traffic on a WEP encrypted network?

Let's say that I am connected to a WEP Access Point and I want to sniff all wireless traffic inside that network. How can I decrypt the traffic even though I don't have the cryptographic key? I found ...
2
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1answer
382 views

Is there any FOSS passive vulnerability scanner ? Not a NIDS but a vulnerability assessment tool

I've see the PVS (passive vulnerability scanner) from Tenable Network Security. I'm really interested in this kind of approach. Anyone know if is there any FOSS solution to be used professionally ...
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3answers
162 views

Are my credentials unsafe if I am already logged-in before connecting to a public network?

Let's say I am already logged-in to my Gmail or Yahoo account using my 3G then I switched to a public WIFI in an airport or cafe. Is my username and password still vulnerable? What others kinds of ...
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135 views

Why can't someone break email or https encryption by somehow getting access to the encryption key?

To repeat, "Why can't someone break email or https encryption by somehow getting access to the encryption key?" In other words, why can't someone intercept the key, or the algorithm to create the ...
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3answers
2k views

TOR and sniffing data

If I'm not mistaken, TOR works opening a random anonymous path between two hosts using others computers that have TOR installed no? Then... everybody can sniff the data of the others no? Just wait ...
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2answers
117 views

Sniffing, Snooping, Spoofing

Could somebody please explain me the differences between the following attacks? sniffing snooping spoofing My professors used them all in his documents, but I'm not sure, if those are 3 ...
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2answers
660 views

Can anyone tell if a wireless router is plugged into an Ethernet port (without actually seeing it)

In a large network if there is an Ethernet port in the wall, is it possible to tell if a switch or wireless adapter is plugged into it? (I'm talking about the cheap home routers - with the built in ...
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2answers
187 views

how to find out if a program sends data to internet (without permission)?

We have an application to save our customers data (some kind of CRM). This application has been written in Delphi and is a client/server application. This program apparently is sending out ...
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3answers
4k views

Facebook login on HTTP? [duplicate]

Possible Duplicate: Is the Facebook login form using SSL without https in the URL? If you access http://www.facebook.com/, in the top right side there is the login section. You can enter ...
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4answers
271 views

Can Your ISP use a Packet Sniffer? [closed]

Can ISPs presumably use packet sniffing applications such as wireshark and monitor my unencrypted data? Are they "allowed" to do so?
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1answer
266 views

Protect an application that uses internet from packet sniffing

I developed a stand alone application such a way that, application use a remote service (using SOAP/REST) which available WWW. I am using HTTPS though out the application calls. It was perfectly ...
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1answer
770 views

How does wireshark detects online-messenger traffic?

I have been working on how to find use of online messenger (e.g imo.im, ebuddy) using wireshark. I'm doing , as i need to build SIEM (security information event management) use-cases which detects ...
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3answers
217 views

Any one know about UDP traffic on source port 26221?

On my captured network traffic i observe a flow having a source udp port of 26221 and have different destination udp ports. Some of these destination ports were standards IANA ports. The average ...
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1answer
436 views

What's most standard way to secure internet connections and protect privacy?

It's common knowledge that Wi-Fi, or other Internet connections, should be encrypted via a VPN to be secure, and to hide our real IP address from intermediary network observers. However, one can't ...
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1answer
163 views

Will packet sniffing still work if all connections go through a local proxy?

Will packet sniffing work if all connections use a local proxy? You are forced to use this proxy to get a connection to the internet at all.
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51 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
54 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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2answers
458 views

Sniffing From Squid SSL

I created a Squid proxy and a self-signed SSL certificate. The SSL certificate on the server is a private certificate linked to the ssl-bump feature. I am using tshark to dump the SSL traffic, but I ...
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0answers
22 views

Nexus 7: Can I set its WiFi to monitor/promiscous mode? If so, how? [migrated]

Related question: Nexus 7 (Or any other good android tablets) For pen testing Also asked on: the android forums (no success so far): Nexus 7: Can I set its WiFi to monitor/promiscous mode? If so, ...
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1answer
81 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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2answers
4k views

How can I monitor traffic of devices on my WiFi? [closed]

I have my kids cell phones attached to my router. What can I install to view what they are browsing and the media they have? I want to make sure my kids are safe
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2answers
544 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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2answers
111 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
414 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
128 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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3k 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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4answers
238 views

How do governments carry out computer surveillance?

If https is really secure as companies tell us, how do governments manage to eavesdrop on terrorist and criminal communications? http://en.wikipedia.org/wiki/Computer_surveillance
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3answers
84 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 ...
0
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1answer
181 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
594 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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267 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
110 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 ...
0
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1answer
584 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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2answers
64 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
112 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
128 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
88 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
107 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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144 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 ...
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34 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
603 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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2answers
2k views

Could somebody explain the basics of Wireshark to me [closed]

I've downloaded Wireshark, messed around with the GUI a bit and, honestly, I can't make head nor tail of what I am looking at. I understand that Winpcap allows me to create a copy of every packet ...
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1answer
246 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 ...