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Weaponized Web Shell: weevely3

Weevely is a command line web shell dynamically extended over the
network at runtime designed for remote administration and pen testing.
It provides a weaponized telnet-like console through a PHP script
running on the target, even in restricted environments.

The low footprint agent and over 30 modules shape an extensible
framework to administrate, conduct a pen-test, post-exploit, and audit
remote web accesses in order to escalate privileges and pivot deeper in
the internal networks.

The modules feature:

  • Shell/PHP telnet-like network terminal
  • Common server misconfigurations auditing
  • SQL console pivoting on target
  • HTTP traffic proxying through target
  • Mount target file system to local mount point
  • Conduct network scans pivoting on target
  • File upload and download
  • Spawn reverse and direct TCP shells
  • Bruteforce services accounts
  • Compress and decompress zip, gzip, bzip2 and tar archives

Weevely Discussed Before

The backdoor agent

The remote agent is a very low footprint php script that receives
dynamically injected code from the client, extending the client
functionalities over the network at run-time. The agent code is
polymorphic and hardly detectable by AV and HIDS. The communication is
covered and obfuscated within the HTTP protocol using steganographic
techniques.

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Ehacking Staff
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