In order to ucate its channels on the jargon of the security market, Cisco explains one of the most popular concepts that you should be aware of if you sell cybersecurity: web shell.
A web shell is a tool that cybercriminals use to interact with and maintain access to a system after it has been compromis.
According to Yair Lelis director
of Cybersecurity at Cisco Mexico, it usually takes the form of a malicious web script (a piece of code) that is load onto a vulnerable system and can subsequently be us to interact with the underlying operating system.
These malicious scripts that cybercriminals lebanon whatsapp number data use for initial access are easily overlook by the complexity of modern systems, Internet sites.
These include third-party software and libraries, which in turn make output connections, among others.
Once initial access is gain, malicious web scripts leverage exploitation techniques or are us to carry out further attacks.
How does a web shell work?
Attackers identify vulnerabilities within the system ; they place one or more web shells .
These weaknesses may be in the website’s content management system or an unpatch web server, for example.
The idea is to establish a constant access point to a system.
“It’s like building a back door that no one knows exists, to which the attacker has the key and can enter as many times as he wants.”
Director of Cybersecurity at Cisco Mexico
The cybercriminal who already has the entry key will be able to execute various attacks, depending on his ultimate motivation.
The executive enhanced measurement events explain that Cisco Talos , the company’s cyber intelligence unit. Has seen attacks remotely execute code or commands. Lateral movement within the network, or deliver additional malicious payloads.
In the incident report prepar by this cmo email list unit. As of the first quarter of 2023, it is highlight that the exploitation. Of public applications was the main initial access technique observ.