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

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Log to file my own SSL traffic coming from websocket

I have to decode and capture my own traffic that come from a websocket WSS listening on port 7072, when I use browser to connect to my data provider. My idea is: to redirect traffic to ...
2
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1answer
84 views

Capturing text messages on the fly

Suppose your phone is not connected to any network. You are sitting in a cafeteria with 50 other people, everyone is communicating to each other via text messages. Is it possible through any device or ...
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1answer
57 views

Can we track sniffers in a network?

It is very simple to launch Wireshark in monitor mode and listen to connections in the host network. I have come across a program called SniffDet. Is it an all round solution for finding sniffers on ...
2
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2answers
274 views

How to capture WhatsApp API requests using Fiddler?

I am trying to capture WhatsApp network requests and not able to do it using Fiddler. This is what I did: Installed Fiddler. Exported Root certificate and installed on my Android device. I modified ...
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2answers
118 views

Is hack.chat safe from packet sniffing?

So I recently found this tool called hack.chat. It's a disposable, browser-based IM system. If I were to use this at a friends house, public network, or at work, it is possible for someone on the ...
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2answers
516 views

How can I see the websites visited by clients of my WLAN?

How can I view the websites that are visited by the user of my wifi? What tools are required to do this? And one more question: can I see the WhatsApp communications?
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1answer
102 views

Log all crypto keys used for outgoing SSL / TLS connections on Linux server

Is there some environment variable that works how SSLKEYLOGFILE works for NSS-reliant programs but which would apply to all outgoing TLS / SSL connections on a Linux server and not just ones that use ...
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1answer
63 views

How can I know if any cell phones other than a given set are turned on in the nearby area?

I am searching for a solution to identify phones simply by the signals it emits. Imagine a signal receiver in a room, then I want to know which people are using phones nearby. I don't care what they ...
3
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1answer
95 views

Can cascaded routers protect inner network's machine from attacker from outer network?

Given: Outer Network router A wan ip 209.123.12.11 address 10.10.0.1 machine A address 10.10.0.10 gateway 10.10.0.1 Inner Network router B wan ip 10.10.0.100 address 192.168.10.1 ...
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2answers
104 views

Unencrypted FTP to transfer encrypted data - okay if IP-restricted?

If unencrypted FTP over the public internet is the only file transfer option for a particular situation, what security concerns are applicable assuming: The data being transferred is strongly ...
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3answers
154 views

Sniffing traffic on a secured wifi connection

Open wifi is a security risk since all the data can potentially be sniffed by anyone. What I want to ask is even on a secured wifi (which requires some kind of password for authentication), the data ...
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2answers
80 views

How can the connection of a rogue VPN router be countermeasured with 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 ...
2
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1answer
176 views

Sniff LAN SSL requests

When I log in into Facebook, using Wireshark in the same machine, I can read the request data in plain-text. That doesn't happen when I'm sniffing my LAN: I can read the SSL packets but they are ...
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1answer
67 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 ...
2
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0answers
120 views

How do I sniff Z-Wave packets with a Zulu Transceiver [closed]

I'm trying to sniff the communication between Z-Wave devices. I have set up a "smart home" consisting of a few devices using Z-Wave technology, which use the frequency 868 MHz. I have been told that ...
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0answers
54 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 ...
4
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1answer
307 views

Decrypting TOR traffic?

Is there any way to decrypt tor traffic from an exit node or relay? I know it's possible to analyze the traffic using something like tcpflow or tcpdump, but it comes back as encrypted giberish. Is ...
4
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1answer
300 views

Man in the Middle Attack against NTP

So, lately I've been really into penetration testing and learning the nitty-gritty of tech. I'm dong courses on computer architecture, cryptography, surveillance law, and computer networks. I never ...
2
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2answers
271 views

Defence against promiscuous detection techniques

As an attacker,how do I prevent people from finding out that my NIC is in promiscuous mode? For test like ARP and DNS how do I defeat the users detection mechanism?
2
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2answers
223 views

Promiscuous mode and packet sniffing

Is it must for a packet sniffer to enable promiscuous mode?Can packets be sniffed without the NIC being in promiscuous mode? Also when in promiscuous mode the NIC accepts all packets which are not ...
3
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4answers
378 views

In a monitored network, can the admins tell if Tor is being used?

I'm not asking if Tor is secure, I'm asking if an observer can know you are using Tor? For example if a persons ISP or company network monitors traffic would they be able to determine with certainty ...
3
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1answer
151 views

How can someone sniff dial-up connection using phone line?

Let's assume we have a computer that sends packets to the internet using dial-up connection, and we have access to the analog data on the phone line(we have access to the phone line), how can we make ...
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3answers
93 views

Is my company VPN the same as third-party VPN providers?

I'm just a bit confused with VPN. My company has VPN when I work remotely. So, I can access internal websites. However, does it mean if I browse my Internet over my company VPN, it will be as secured ...
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3answers
689 views

Is it possible to sniff traffic of a remote network? (With admin access to router)

Me and a friend of mine are simulating a widespread scenario where router configurations are untouched (default passwords) and are visible from the internet. Him, acting as the victim, will constantly ...
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1answer
517 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 ...
3
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3answers
361 views

Is it possible to obtain the login credentials submitted by users?

It's a question at computer security textbook Assume that user A is about to use some website that requires login credentials. User A starts his web browser, types the website’s URL, and submits the ...
5
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2answers
3k views

Facebook POST request capture

I have been trying to test a sniff on facebook POST request forms using wireshark (filtered HTTP). At login form, I would try login, and then check wireshark and see that no packet was captured. ...
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3answers
295 views

Sniffer attack on mobile [closed]

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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4answers
300 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
52 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 ...
0
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1answer
77 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
142 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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4answers
159 views

Suspicious SMS getting received on selected browsing

I am receiving several suspicious SMS messages with links telling me that I have requested subscription to their services (which I have not) asking me to confirm subscription. These SMS appear only ...
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1answer
100 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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6answers
6k views

Possibility to sniff HTTPS traffic on devices without installing a certificate

My goal is to sniff the HTTPS traffic of some digital devices (AppleTV, game consoles, etc.), and decrypt the HTTPS packets in my local network. I cannot figure out a way by using some HTTPS ...
0
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1answer
296 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 ...
1
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1answer
300 views

Spying on insulated cables (electromagnetic/induction field)

I hope this is the right forum to ask this question. If not, please tell me where to go. From my understanding most cables have an electromagnetic field around them when data passes through them and ...
3
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2answers
352 views

How to secure a network (FTP connections) from sniffers

I'm actually working in a medium sized company with security concerns. Let me explain you my problem : The context: My office has one single internet line. This line is accessed by anyone in the ...
2
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3answers
1k views

promiscuous vs monitor mode in 802.11

I've been reading up on promiscuous mode and monitor mode as they relate to 802.11 networks. I understand the difference, which is explained here: What is the difference between Promiscuous and ...
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1answer
152 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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2answers
1k views

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 ...
2
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3answers
16k views

How to know what others browse through the network?

My friend connected to WIFI and after 5 minutes he told me which sites I had actually been browsing, and who I chat with. My question is: how do I defend myself against this, and also how did he do ...
4
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1answer
312 views

WLCTL protocol detected by sniffer in an Android tablet

I detected that my rooted Android tablet had a slow connection. Trying to find what is taking the bandwith, I installed a firewall (DroidWall) and I blocked all the applications thinking that one of ...
3
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1answer
229 views

How to sniff [possibly encrypted] TDS protocol data from the host the client application is installed on?

Let's say, there is an .NET application on a windows 7 host where I have administrator's access rights. The application works with remote MS-SQL server which I don't control, it also seems that the ...
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3answers
480 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 ...
0
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1answer
387 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 ...
0
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1answer
314 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 ...
2
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1answer
327 views

DNS packets during ARP poisoning

I carried out an arp poisoning attack from my virtual machine to real machine with cain and able and collected data with wireshark from real machine. While I was investigating data with wireshark I ...
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2answers
423 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 ...
1
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1answer
328 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(): ...