Rule History

alert http $HTTP_SERVERS any -> $EXTERNAL_NET any (msg:"ET WEB_SERVER Generic Mini Webshell Accessed on Internal Compromised Server"; flow:established,to_client; file.data; content:"<tr><td>Current Path : <a href=|22|?path=/"; nocase; content:"<tr class=|22|first|22|>"; nocase; distance:0; content:"<td><center>File/Folder Name</center></td>"; nocase; distance:0; content:"<td><center>Size</center></td>"; nocase; distance:0; content:"<td><center>Permissions</center></td>"; nocase; distance:0; content:"<td><center>Options</center></td>"; nocase; distance:0; content:"<td><center><form method=|22|POST|22 20|action=|22|?option&path="; nocase; distance:0; fast_pattern; content:"<td><a href=|22|?filesrc="; nocase; distance:0; content:"<option value=|22|delete|22|>Delete</option>"; nocase; distance:0; content:"<option value=|22|chmod|22|>Chmod</option>"; nocase; distance:0; content:"<option value=|22|rename|22|>Rename</option>"; nocase; distance:0; content:"<option value=|22|edit|22|>Edit</option>"; nocase; distance:0; classtype:web-application-attack; sid:2029889; rev:2; metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2020_04_13, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_04_13;)