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Web Shell Detector v1.51 - Include Signatures of 290 Types of Web Shells

Web Shell Detector is a php script that helps you find and identify php/cgi(perl)/asp/aspx shells. Web Shell Detector has a “web shells” signature database that helps to identify “web shell” up to 99%. By using the latest javascript and css technologies, web shell detector has a light weight and friendly interface.

Detection: Number of known shells: 290

Requirements: PHP 5.x, OpenSSL

Usage: To activate Web Shell Detector:
1) Upload shelldetect.php and shelldetect.db to your root directory
2) Open shelldetect.php file in your browser Example:
3) Inspect all strange files, if some of files look suspicious, send them to team. After submitting your file, it will be inspected and if there are any threats, it will be inserted into a “web shell detector” web shells signature database.
4) If any web shells found and identified use your ftp/ssh client to remove it from your web server (IMPORTANT: please be carefull because some of shells may be integrated into system files!).


  • extension - extensions that should be scanned
  • showlinenumbers - show line number where suspicious function used
  • dateformat - used with access time & modified time
  • langauge - if I want to use other language
  • directory - scan specific directory
  • task - perform different task
  • report_format - used with is_cron(true) file format for report file
  • is_cron - if true run like a cron(no output)
  • filelimit - maximum files to scan (more then 30000 you should scan specific directory)
  • useget - activate _GET variable for easy way to recive tasks
  • authentication - protect script with user & password in case to disable simply set to NULL
  • remotefingerprint - get shells signatures db by remote