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Malware

c99shell

aka c99

C99shell is a PHP backdoor that provides a lot of functionality, for example: * run shell commands; * download/upload files from and to the server (FTP functionality); * full access to all files on th

c99shell, also known as c99, is a PHP malware family.

Background

C99shell is a feature-rich PHP backdoor whose capabilities include:

  • executing shell commands;
  • transferring files to and from the server (FTP-style functionality);
  • unrestricted access to every file on the hard disk;
  • the ability to delete itself.

Source: Malpedia (Fraunhofer FKIE).