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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Why do I get all of these bad header checksum messages?

Every time I open my browser, I get tons of these bad header reports. What does this stem from?
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4answers
726 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
628 views

What utilities can be used for Ping of death attack?

Can somebody tell me what program can mess with pockets and enlarge them for Ping of death attack? (i need it for lab) Is there anywhere step-by-step instructions of this attack? I'm not a hacker ...
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1answer
181 views

Corrupt password being pulled from wireshark data?

Hello everyone, I currently have a pcap file that contains an unencrypted Telnet session, and when I trace the TCP stream the password is in a format like so: pas...ord (please note ...
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2answers
1k 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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1answer
2k views

Wireshark Gratuitous ARP

I'm playing around with scapy and wireshark and I have sent a packet to a destination that does not exist (10.0.2.14). Wireshark shows an ARP attempt to resolve the address but as its not there the ...
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4answers
2k views

Is my network being sniffed?

Is there any way to find out if someone who is connected to my network is sniffing packets? There is a way with nmap if his card is in promiscuous mode but what if it is passive?
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2answers
220 views

What does capture filter means in wireshark? [closed]

What does capture filter means in wireshark? Is it same as display filter?
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1answer
586 views

Wireshark detecting suspicious messages through jabber protocol, It says it is from my website, no idea what it is

I was doing a network scan on my computer with Wireshark and came up with something very suspicious: I found a stream with the jabber protocol. I do not have a jabber server set up nor do I have any ...
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2answers
1k views

Wireshark Trace containing SSL RSA with RC4 128 md5

I thought it'd be a neat idea to do a wireshark capture on my own login to a website and try to figure out where the packet containing the password is and decrypt it. So I logged into a website ...
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4answers
4k views

Can I listen to a remote IP's traffic using Wireshark? (Man in the Middle)

How can I listen to a remote IP's traffic using Wireshark? (Man in the Middle)
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3answers
530 views

How to diagnose and handle unexplained open network connections?

I was using Wireshark in order to check the activity of an unknown client in my home network, and to my surprise, I found some strange connections established by my own computer. I disconnected all ...
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3answers
564 views

How to fuzz proprietary protocol over SSL?

I'm doing vulnerability research on a client/server architecture that uses a custom proprietary protocol sent over SSL (port 443). I need to be able to intercept the traffic, and be able to view it in ...
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1answer
952 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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1answer
2k views

Is my computer being hacked? How can wireshark reveal if I am being hacked? [closed]

So last night I was using openVPN via my personal cloud server to watch some Hulu. About 15 minutes into the movie I noticed my network stats were download: ~250 MB upload: ~1.8 GB This is ...
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1answer
92 views

How do I verify versions of Adobe?

I ran a vulnerability scan against a server and it is pulling back a lot of Adobe vulnerabilities. I ran a Wireshark capture on the scan but I can't seem to write up a Wireshark filter on the packets. ...
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1answer
409 views

Wireshark Decode HTTPS Root Certificate

I'm currently dealing with a "Sniffy" java application. Well I can see it connecting to some kind of server using HTTPS. I would like to see what its sending or getting over HTTPS. i have read some ...
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2answers
9k views

Decrypting TLS in Wireshark when using DHE_RSA ciphersuites

How can I decrypt TLS messages when an ephemeral Diffie-Hellman ciphersuite is used? I am able to expose the premaster secret and master secret from the SSL Client. Using that, how to decrypt the ...
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2answers
3k views

how to monitor a Wifi (802.11) network?

How to capture a sequential stream of data between two machines, making no assumptions about network layer protocols? On wired network, one can do it by ARP spoofing and then sniff the network. One ...
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1answer
325 views

Configure Wireshark to capture preformatted data from pseudo-device

So, for a research project, I'm trying to use the HONE project on github, which creates during its module installation two pseudo-devices in the /dev folder. These are called hone and honet, the ...
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2answers
2k views

Extract cookies from pcap

Is there any tool to extract cookies from network sniffs generated by tcpdump (.pcap files). I know I can open it in wireshark but it will take a while until I find the domain I am interested into ...
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1answer
1k views

How to study the packets sent by a keylogger

One of my friends runescape account got hacked through key-logger. He downloaded a runescape gold generator from a file sharing site and tried to use it. I have a strong doubt that it is a key-logger. ...
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1answer
2k 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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1answer
397 views

Is suspicious network activity likely to be caused by a rootkit?

Netstat has been one of my favorite tools to check out possible malicious connections, but then I heard about the dangers of rootkits and their high complexity, allowing them to be able to bypass ...
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2answers
113 views

Display all packets but not these TCP packets? [closed]

I'm trying to filter packets with wireshark, I would like to display all packets but terminal service communications, but if I do: tcp.dstport != 3389 && tcp.srcport != 3389 It would ...
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1answer
2k views

wireshark only showing inbound traffic

I am using a dynex DX-EHB4 ethernet hub with two systems connected to it, the target desktop and another desktop running wireshark in promiscuous mode. I have a filter in place "host x.x.x.x" so I ...
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1answer
874 views

Does anyone know how to “tcpdump” traffic decrypted by Mallory MITM?

I'm looking for some help in capturing network traffic that I can analyze in Wireshare (or other tools). The tool I'm using is mallory. If anyone is familiar with mallory, I could use some help. ...
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1answer
190 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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0answers
103 views

Turn Binary Data into Airborne Packets? [closed]

Are there any software libraries and/or wireless drivers that make it possible to turn a sequence of binary data into a wireless packet in the air? For example, if someone used Airpcap/Wireshark to ...
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2answers
781 views

Why wireshark source ip tab lists other ip as well

I was trying to capture some packets using Wireshark. I could find a lots of ip in the source address tab. Which ip do they represent. Which all packets are visible to wireshark when I run it in my ...
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3answers
536 views

When do Ps Tools send cleartext passwords, and how can I demonstrate this?

The Ps Tools from Mark Russinovich are very handy remote administration utilities. However, they all come with one big caveat. Note that the password is transmitted in clear text to the remote ...