The tag has no usage guidance.

learn more… | top users | synonyms

2
votes
2answers
30 views

Profile applications from traffic analysis

I'm investigating options for segmenting a less secure business unit behind a Cisco 5505. I want to take this action quietly and transparently for political reasons. I want to know if it is possible ...
2
votes
1answer
60 views

Why are packets constantly being sent to international ISPs?

When using a packet sniffer, I notice a lot of packets being sent to a bunch of ISPs (such as axion.ca, wanadoo.fr/orange?, bresnan.net, zebra.lt) usually all at the same time. Here's a screenshot of ...
2
votes
1answer
106 views

Failure to capture any packets on wlan0 in monitor mode

I have read a lot of Q&As that have achieved success in packet captures of Wifi probe requests, which entails capturing IEEE802_11_RADIO (802.11 plus radiotap header) in monitor mode. But I find ...
1
vote
2answers
66 views

Could anyone technically see my requests with TOR if the person has access to my router?

I was wondering if someone could sniff the packets I send via my computer with something like Wireshark I guess even if I use TOR and the person could access the router like stated.
4
votes
3answers
249 views

Windows: unknown program/service etc. sends HTTP request to download a file; how can I find the origin of that request?

The firewall of my company has detected and blocked a repetitive (every 15 min) HTTP request from a PC, which tries to start a download of a file called ..._chrome_installer.exe(or so) from the host: ...
4
votes
2answers
81 views

Malware / vulnerability that uses or causes malformed IP or TCP Headers

I'm curious if there are any examples of malformed IP or TCP headers (for example, checksums that don't match, reserved bits that aren't zero, or poor header length numbers) used by malware, or that ...
25
votes
4answers
3k views

What layer is TLS?

TLS stands for "transport layer security". And the list of IP protocol numbers includes "TLSP" as "Transport Layer Security Protocol". These two things would leave me to believe that TLS is a ...
1
vote
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 ...
1
vote
0answers
12 views

Probabilistic packet marking content ID field

For Above image: All routers are using PPM. What will be the content ID field if 1) R1 = mark packet, R2= Mark packet, R3 = Not mark the packet. 2) R1 = Not mark packet, R2= Mark packet, R3 = Not ...
1
vote
0answers
118 views

Perform SSL MITM -> Decrypt packet -> Modify packet -> Encrypt packet -> Send it [closed]

I have a victim and a server. My goal is to intercept traffic, perform SSL MITM, decrypt packet, modify it, encrypt and send it further. Everything has to be on-the-fly and protocol agnostic. For now ...
-2
votes
1answer
111 views

What would a typical packet of a DDOS attack look like? [closed]

In terms of header, size and payload? We've been learning about DDOS attacks in class and they've been telling us all of the abstract ideas, but haven't told us what the actual makeup of the packets ...
3
votes
1answer
170 views

RSnake's Slow Loris tool

I was looking at RSnakes implementation of his Slow Loris done on perl which can be seen here. I set up a little server to listen to his packets, and at first found this GET / HTTP/1.1\r\nHost: ...
-1
votes
1answer
95 views

Slow internet - Worried about spammed packets

got a weird question and I'm not sure if I should even post this on here but I couldn't think of anywhere better to ask. Lately, I've been getting some internet speed issues. I closed literally every ...
1
vote
0answers
110 views

Snort rule for outgoing attacks [closed]

I have a pcap file captured from a user PC. I need to analyze whether it has initialized a DOS attack to any server. alert tcp any any -> any 8080 (msg:"DOS flood denial of service attempt"; ...
0
votes
1answer
607 views

How to run a snort rule over pcap file

I have a pcap file, and what I wanted to know is how can I apply the Snortrule below which I've already written within the rules folder in my log folder: alert icmp any any -> any any (msg:"TCP ...
0
votes
0answers
62 views

What is a Packet Identifier (pid) used for?

I'm trying to analyze a pcap file using snort using the following command: snort -r file.pcap I got the output which had n number of packets and at the top i had this Packet Identifier pid=14782. ...
-1
votes
1answer
817 views

Interpreting anti-hacker-alliance analysis [closed]

One of security tools available for web browsing is (http://anti-hacker-alliance.com) Please find below two readings: a) Reading for IP 205.x.x.x that state among other-things "you are using proxy ...
-1
votes
2answers
1k views

How to make Reaver crack WPS faster [closed]

I have Reaver 1.4 on Ubuntu 14.10 with a Realtek RTL8187SE B/G adapter and it takes almost 5-10 minutes to get from 0.01% to 0.02%. I always have my TX-Power at 30 when I use Reaver, the network is ...
1
vote
2answers
77 views

Is it secure to split information into multiple packets?

I just stumbled upon this SO question. I was wondering if it would be still secure to split the encrypted packet into multiple packets, which are then transferred over the wire separately. Could ...
0
votes
0answers
84 views

Splitting a packet which has the size greater than MTU in PCAP

I have a pcap in which the length of packet is more than the MTU. There is a option in wireshark to export the object but that is for only http and smb. Is there a way to split the packet in MTU size ...
1
vote
3answers
448 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 ...
1
vote
0answers
161 views

Limit Packets Per Second

Since last week I have been seeing something fishy and it seems to be worsening. I tried many firewalls and they seem to be useless. I blocked all unwanted ports and only few ports are open so I found ...
1
vote
2answers
193 views

Send fake response(?packets) to a program [closed]

So my idea was.. There is a program that require login to be able to use(the program should work offline aswell not requiring any online data), so i want to make that program to be able to run offline ...
0
votes
1answer
132 views

Firewall with packet capture and inspection?

Is there such thing as a firewall with packet inspection? Most outbound firewalls simply prompt the user with "program.exe is trying to connect to the internet - allow or deny?". I find it impossible ...
1
vote
2answers
205 views

Force connected devices to use http rather than https

I am very new to MITM attacks and have been faffing around on my home network today.. When sniffing my iPhone trying to connect to some mail accounts I have noticed that it shows a message stating ...
0
votes
1answer
192 views

Firewall log entry: need help in interpretation

I recently setup an Hardware UTM Firewall. The firewall log shows the this entry every 20 seconds: /var/log/packetfilter/2014/09/packetfilter-2014-09-30.log.gz:2014:09:30-12:06:15 utm ulogd[11342]: ...
0
votes
1answer
312 views

Why can't all wireless cards perform packet injection?

If a wireless card can send packets, why can't it inject packets? All have to do to inject a packet is create a raw socket, construct a packet with the spoofed headers and then send the packet ...
3
votes
2answers
529 views

Packet Checksums

I recently learned that every packet includes checksum bytes and that the computer will request the packet again if the checksums don't match. How do the following attacks defeat such a safeguard? ...
0
votes
2answers
205 views

Wireshark displays sql calls - Prevention

So I was analysing a new application that is being written. I noticed that on the app server level there are sql calls that are being made from C# code. These calls can be seen in wireshark by ...
1
vote
2answers
44 views

Several processes are listening to the same interface: any problem?

I wonder if some processes may get less packets than others if they are all listening to the same wireless interface. I'm running for example the basic mitm schema using arpspoof, sniffing packets ...
0
votes
2answers
310 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
votes
1answer
92 views

Can I broadcast packet to a public ip? [closed]

I have seen that x.x.x.255 is reserved for broadcasting. Is it only work for broadcasting to the computer which connected to the same router? Can I broadcast to public IPs?
1
vote
2answers
721 views

How to remove tcp header of packets captured with dumpcap?

The traffic from Wireshark saved into a file with dumpcap. In this file a have for example : € X `þ $À6 @ íëÃNxXÀ¨£ P&E»kKí¨<`PEà; HTTP/1.1 200 OK Cache-Control: private And I ...
0
votes
1answer
350 views

Block specific packets/sequences of packets to remove disturbing client “feature”

Recently, one of my client-server application started to disturb me with some very annoying "notifications". Basically, what happens is that the remote server sends a few packets to my client, which ...
0
votes
2answers
216 views

Solution for traffic capturing from router

i'm a newbie and i'm having a problem that i can't find it by google. I'm researching abbout DDoS detecting method now. As we can see that nowadays people often analyze networking traffic from router ...
2
votes
1answer
296 views

Understanding Hearthbleed attacks [duplicate]

In order for a Heartbleed attack to happen and for someone to grab the SSL private key and even spy they have to be on the local network with a router, switch or server, correct? Or can this be done ...
23
votes
1answer
1k views

Does TCP/IP protocol offer a reliable way of determining who the actual sender was?

So I'm just poking around the TCP/IP protocol using a Ruby library called PacketFu, and it seems to me that in each packet, it is possible to set all of the following Source IP Destination IP Source ...
0
votes
1answer
125 views

How to log packets which are allowed by SNORT?

Suppose i have not written rule for a type of attack in SNORT; It is obvious that it wont show any alerts. I wanna develop a system wherein i capture packets that SNORT allows n do further processing ...
1
vote
3answers
204 views

Is there a way to get information out of the router [closed]

Is there any way (directly from a computer or device) to see the packets that pass the router from the different devices. Thanks.
1
vote
0answers
265 views

Suggestions on how to capture network connections/traffic for determining browser/SSL versions?

I've started thinking about how to approach analyzing my network traffic for information relating to SSL and browser usage for my web server farm. I also suspect there are some shadow (legacy, ...
0
votes
4answers
760 views

If you connect through a website via a proxy, and the proxy doesn't save information, can you still be linked back?

Say I connect to a specific proxy that I know will not keep information/data about who connected to it, and I go to a website and do something deliberately illegal. If the "middle-server" doesn't have ...
1
vote
4answers
995 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?
0
votes
1answer
127 views

Packet filtering firewall - (Network Layer) [closed]

I would like to know what does this particular rule of the packet filtering firewall ruleset do: Source Address: Any Source Port: Any Destination Address: 192.168.1.0 Destination Port: 1023 and above ...
-1
votes
1answer
1k views

IP packet generate manually? [closed]

I have heard that we can create ip-packets by our own and send it to a network or a host. How this Can Be Done ?Please Explain step by step??
3
votes
3answers
3k views

How to capture wireless data from an intruder using a home router

After my house mate experienced consistent ping spikes whilst gaming, he asked me to check/set the wireless router password. I did and I found two intruders from obviously nearby. How can the data ...
2
votes
1answer
597 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 ...
-3
votes
1answer
742 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 ...
0
votes
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 ...
2
votes
1answer
778 views

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 ...
3
votes
2answers
3k views

What's the difference between an application-level and circuit-level gateway?

From Wikipedia, I understand that circuit level gateways look at TCP handshakes to filter illegitimate traffic and that application level gateways somehow filter application specific traffic. But I ...