What is a sniffer / traffic analyzer?

[CarderPlanet]

Hello, running in the shadows! Hello, random carder. We continue to learn the alphabet of the Darknet. Today we have the letter "C" - a Sniffer.

Go:

What is a sniffer?
Sniffing — eavesdropping (sniffing). For the most part, information in computer networks is transmitted in an open, unprotected format (plain text), which allows an attacker who has gained access to information transmission lines in your network to eavesdrop or read traffic. Sniffer programs are used for eavesdropping on computer networks. A network packet sniffer is an application program that intercepts all packets passing through the network and transmitted through a specific, specified domain.

Today, traffic analyzers and sniffers work in networks on a completely legal basis and the use of these programs is not a crime. Sniffers are used for traffic analysis and troubleshooting. However, since some network applications transmit data in text format (POP3, SMTP, FTP, Telnet, etc.), the sniffer program can also intercept useful and sometimes secret information (for example,passwords and logins).

There are 2 types of sniffers

• local sniffer
• online php sniffer

Password sniffing transmitted over the network in unencrypted form by" listening " to the channel is considered a type of computer attack. Interception of usernames and passwords poses a huge threat, as users often use the same password and login for a large number of programs and systems. Many personal computer users generally use 1 password to access all applications and resources. If the application is running in client / server mode and authentication data is transmitted over the network in an open, readable text format, this information can most likely be used to access other external or corporate resources.

In the worst case scenario for the user, an attacker gains access to a user resource at the system level and uses it to create new user attributes that can be applied at any time to access the network and its resources.

Sniffers are also used to intercept traffic and analyze malware. The most popular sniffer today is Wireshark

How can I prevent the threat of packet sniffing?
In fact, it is very difficult to protect yourself from a sniffer, but there are some tools that can help reduce the risk of intercepting your confidential data.

• using different complex passwords for authentication
• installing and configuring software or hardware that recognizes sniffers
• using crypto-encryption of communication channels
• using programs to protect wireless networks

That's it, cyberstalkers. If you want to know more, stay tuned.