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Web Shells: Types, Mitigation & Removal
Sucuri Blog blog.sucuri.net
Web shells are malicious scripts that give attackers persistent access to compromised web servers, enabling them to execute commands and control the server remotely. These scripts exploit vulnerabilities like SQL injection, remote file inclusion (RFI), and cross-site scripting (XSS) to gain entry.
Once deployed, web shells allow attackers to manipulate the server, leading to data theft, website defacement, or serving as a launchpad for further attacks. Given their stealth and versatility across various programming languages (PHP, Python, Ruby, ASP, Perl, …
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