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Questions tagged [wireshark]

Wireshark is a graphical packet capture and analyser open-source software. It can be used for a variety of network communication analysis tasks like protocol development and troubleshooting. It shows packets on the IP level.

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Wireshark - How to see the domain of HTTPS websites visited

How can I see the domain name of https websites that are visited on my network? I know I'm not able to see the full url, just the websites ip or domain. I think it my be possible with a reverse dns ...
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1answer
81 views

Capturing traffic on WiFi Network using Wireshark [duplicate]

Is it possible to capture, using Wireshark, regular data sent by another machine inside my Wireless LAN?
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74 views

How to analyze .pcap file to write a generic snort rule to detect c&c activity

I am diving into snort and trying to figure out what everything does but I'm having a little trouble. I have a .pcap file I want to analyse and I know there is malicious c&c traffic on it. (...
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1answer
88 views

Is there a way to change the format of the output from snort?

I'm pretty new to snort and don't know too much about it. I am trying to put together a report of my snort files but, I only want the connections not the entire flows. For example, say I have a few ...
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50 views

Decrypting application data from pcap

Full disclosure I am front end developer with hardly any knowledge of security trying to complete a security challenge. All info below I picked up in the last 12 hours so if it doesn’t make sense feel ...
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1answer
53 views

Determine victim of port scan's OS

I am taking part in a practice sandbox, and have a pcap file in Wireshark: with the traffic depicting a Vertical Port Scan. Is there anyway to find out the "victim"'s Operating System? The packets are ...
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121 views

Can I detect malware download using Wireshark?

I have been working on Wireshark lately. I am learning about malware behavior, but I am curious to know whether methods exist to detect malware download (via drive-by download) on systems. Anti-...
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2answers
7k views

Why is my computer making requests to my Roku about spotify?

I'm new to inspecting packets with Wireshark so this might be something very stupid on my part. That said, I don't really understand the transaction between my computer and my Roku. 17 1.129097 ...
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76 views

How can I see the data content (HTML, JS, etc) in HTTPS responses in Wireshark?

I'm learning packet sniffing and analysis with Wireshark. At first, I could only see DNS, TCP, and ARP packets. I learned I couldn't see any HTTP packets because it was all encrypted in the transport ...
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1answer
74 views

Would sniffing all network traffic from android device to check for spyware be a viable solution

I suspect that my Google pixel (Android 9) phone has some sort of a spyware installed. There are no obvious symptoms like overheating, extreme data usage, or battery draining at an unusual rate. But I ...
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Identify SSL invalid handshake using Wireshark

I am doing a research on "Network flow anomaly detection" and use Wireshark for my work. I have a problem of identifying the packets with invalid SSL/TLS handshakes. Is there a way/algorithm to detect ...
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ICMP Packet collection fails with airodump-ng

I have 3 machines (A,B, and C) connected to the same wireless network. I can ping A to B and vice versa. Machine C is set to monitor mode using airmon-ng and airodump-ng commands. When I try to ...
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Wireshark DNS sniffing : too much junk -> Are there hostname “blacklists” for wireshark?

So I'm sniffing my DNS on wireshark. There's way too much junk because the websites include many advertising tools, web tracking, etc. Is there some blacklist that contains all those pesky hostnames, ...
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1answer
96 views

How do I know that the request and response is using encryption protocols in burp suite?

I know these things can easily be done on wireshark, tshark, etc but is it possible to know that the request I forwarded and the response I received is using protocols such as TLS, TLSv1.2, TCP, HTTP, ...
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57 views

How to identify the communication protocol used in a wireless device?

I really hope that this is the right place to ask. I need to analyze a baby monitor for any security or privacy weaknesses. The spec sheet of the baby monitor says, that it uses the ISM 2400~2483.5 ...
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1answer
254 views

Analyze / Sniff all packets from all devices connected to a router

First of all, before explaining what I'm trying to do, let me clarify that my intentions are not steal any information, as it's only for study purposes, not even for my own entertainment. I'm trying ...
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53 views

How to extract a hash (VNC, SSH2 or SMB) from a WireShark capture file

Until now I have only tested WPA hashes, and they have been extracted from a airodump-ng's capture file using tshark or aircrack-ng (-J option). I wanna go one step beyond, and in an effort to ...
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How can I found a source of HTTP request in Wireshark?

There are weird requests to/from the AWS: and another one to/from 177.143.198.104.bc.googleusercontent.com: ( http://whois.domaintools.com/177.143.198.104 ) I use Ubuntu 18.04 Desktop, web browsers ...
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1answer
61 views

Understanding OPENVAS Wireshark Capture

I was looking at a sample capture from a tutorial I was looking at and below is a snippet of a wireshark packet capture: OpenVAS:() { _; OpenVAS; } >_[$($())] { echo Content-Type: text/plain; ...
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1answer
39 views

Tls certificate correspondence

I am not really good in tls details, just know some basics. So there are couple of questions about it: Is there a way to decipher tls in wireshark if the cipher method is diffie hellman? I know that ...
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2answers
864 views

How wireshark capture packets in LAN without arpspoof?

I created a lab environment which has Windows 7 and Kali Linux in VMware. In Kali Linux, I opened Wireshark and started to listen to traffic on eth0. After that, in my Windows 7 machine, I opened an ...
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1answer
284 views

How to identify a Ping of Death attack by analyzing its packet in Wireshark? [closed]

I've tried researching it for a long while, but came out dry.
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1answer
137 views

GSM - Implementing Cipher Mode Command on YateBTS

I've been studying on Yate & YateBTS source code for a while, and I was wondering why there is no ciphering mode implementation in the source!? I use the combination of BladeRF x40 FPGA and ...
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2answers
72 views

My AP is probing other device?

I just installed kismet 2018 Beta update on my kali and test run it on my host but i came across something that i dont understand and i would appreciate if someone would explain to me. When i check ...
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4answers
4k views

Eavesdropping vs. sniffing

I'm taking a coursera course, and they take pains when talking about network security to distinguish between eavesdropping and sniffing. According to their definitions, sniffing involves reading or ...
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1answer
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Wireshark unable to capture layer 3 [closed]

I'm new to Wireshark. I'm trying to visit google.com and capture the packets. However, Wireshark is only showing me layer 2 packets as shown below: Hence, filters like ip and ip addr == x.x.x.x are ...
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1answer
643 views

How can i sniff Telegram packets before they get encrypted?

So how can I sniff packets that are being sent from my computer to their server and from their servers to me using a sniffing app like Wireshark? right now when i use Wireshark, they are all ...
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1answer
342 views

Save decrypted pcap or decrypt on reading with rdpcap

I created a small program with runs command: tshark -i2 -o wlan.enable_decryption:TRUE -o "uat:80211_keys:\"wpa-pwd\",\" Passphrase:SSID\"" -w test.pcapng This creates the file test.pcapng, but it ...
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0answers
86 views

Hide data from wireshark on localhost

Assuming you're working with an old network protocol, or insecure/unencrypted protocol (HTTP for example), is there a way to make it difficult for network sniffers from capturing the packets? An MITM ...
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2answers
1k views

How to understand “Encrypted Data” in TLS message type?

In this Wireshark screenshot, there is a message type "Encrypted Data". Does anyone know what this is and in which situations this message type will be sent?
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1answer
1k views

Optimal way to capture HTTP(S) traffic on proxy-unaware iOS applications

I am trying to capture HTTP(S) traffic from a proxy-unaware Xamarin iOS application. The current tools I have available is a Mac with a Linux Mint VM, Xcode and iOS developer tools, Burp Suite ...
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Wireshark showing all ports being probed from my tablet

The first two pictures: Wireshark shows a tablet device as the source and my computer as the destination and vice versa. This tablet has never been connected via USB, FTP, BT, nothing to the computer. ...
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1answer
4k views

Filter TLS in Wireshark or other monitoring tool

As part of the new best practices in hardening server communications I need to deny TLS 1.0 on the web server, before doing so I wish to identify the amount of clients whom connect with this level of ...
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1answer
421 views

Finding wpa2 key length

Is it possible to determine WPA key length through a successful handshake? Below is a screen capture showing the packet capture session of interest as displayed in Wireshark: My question came from ...
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1answer
332 views

Suspicious network activity detected in Wireshark [closed]

I have never noticed something like this in my network before: My IP: 192.168.1.46 It keeps repeating randomly and constantly. At first, I thought I was infected by some type of malware. I ...
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1k views

What is the Session ID parameter indicate in Client Hello and Server Hello messages

I was trying to understand the TLS handshake in depth. I set up Wireshark and captured the github.com traffic. While inspecting the Client Hello and Server Hello, I found a parameter Session ID. ...
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2answers
289 views

Installing own certificate for HTTPS sniffing?

This is something I heard before but cannot remember how to do, I am looking for a tutorial or alike. I have an Android application I need to audit. I need to check if any cookies are being ...
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26 views

Decrypting 802.11 packets captured through wireshark [duplicate]

I created my own network with security of WPA2-PSK, so I know the SSID, and password. I then connected 2 devices (A and B) to this network and started capturing B's traffic from A using wireshark in ...
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2answers
69 views

What is this address I received from wireshark?

______source____________destination___ 41:9c:7f:78:b1:0c | 08:00:d0:58:59:4c I am trying to identify those addresses, the source and the destination, I thought it was IPv6 but then I realized it'...
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1answer
53 views

Why would the amount of packets received be greater than the amount of packets sent? [closed]

I am new to wifi, and as I was looking at .pcap files, I noticed that one connection took an absurdly large amount of time. Another thing that stood out is that the amount of packets received was so ...
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1answer
267 views

Does nmap mtu scan really send crafted mtu size?

Since nmap is a well-known security tools, I guess this is the right section. I've been reading about nmap techniques here as part of my network security syllabus ... I've performed 2 scans ... one ...
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1answer
170 views

Wireshark showing HTTP on top of TLS

I am seeing an HTTP request on top of SSL in Wireshark. Can anyone explain why?
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1answer
1k views

TLS, Wireshark “this session reuses previously negotiated keys”

I made a Wireshark tap for 2 request: a HTTP GET to a login authentication page then a HTTP POST when I send credentials to the server As you can see, I get a warning message from Wireshark because ...
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1answer
1k views

Setup Wireshark to decrypt TLS_DHE

I have a passively sniffed traffic dump of client/server were packets are encrypted with cipher suite Cipher Suite: TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 (0x009e) With a Logjam attack I managed to ...
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1answer
4k views

AirPcap is end-of-availability. What alternatives do you recommend? [closed]

I've been using Riverbed AirPcap dongles for Wi-Fi analysis for quite some time. But when I am trying to order more, I noticed all their AirPcap devices are end of life by Dec 31, 2017, for reason I ...
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1answer
163 views

Is it safe to share a TLS Master Secret?

I am debugging a client/server TLS communication issue with a 3rd party server vendor. For the client-side, I've captured a pcapng dump along with saved via a SSLKEYLOGFILE-like utility. Can I share ...
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1answer
95 views

DTLS Record with weird cipher text

I am using mbed TLS to deploy each a DTLS Server and a DTLS Client application. After the DTLS Handshake, the Client sends "Hi, Server" and then the Server answers "Hi Client". The connection is ...
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1answer
381 views

Packet analysis of IRC traffic

I've been going through this malware traffic analysis exercises and part of the malicious traffic detected is IRC traffic over non-standard port 443. This is picked up by ET Snort rule sid:2000348; ...
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0answers
127 views

Duplicate packets in packet injection

I've been trying to develop a few scripts that can forge custom 802.11 frames and inject them through a monitor mode interface. I have gone through the development documentation of radiotap headers ...
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1answer
193 views

Wireshark trafic from router [closed]

I have a very old router and in my routers admin page there is no option to write any commands or view traffic in any way, i tried using Putty to get inside it with port 22 and I get a connection with ...