Rule History

SID: 2030541 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2 • Jul 16, 2020, 12:00 PM

Message:

ET WEB_CLIENT Generic Webshell Password Prompt Accessed on External Compromised Server

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Generic Webshell Password Prompt Accessed on External Compromised Server"; flow:established,to_client; file.data; content:"cmd{background-color|3a|"; content:"SCROLLBAR-DARKSHADOW-COLOR|3a|"; distance:0; content:"<body style=|22|FILTER|3a 20|progid|3a|DXImageTransform.Microsoft.Gradient("; distance:0; content:"gradientType=0,startColorStr="; content:"<input name='envlpass' type='password'"; fast_pattern; classtype:web-application-attack; sid:2030541; rev:2; metadata:affected_product Web_Server_Applications, attack_target Web_Server, created_at 2020_07_16, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_07_16;)

Created:

Jul 16, 2020, 12:00 PM

Updated:

Jul 16, 2020, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 17, 2025, 9:34 PM

Filename:

rules/emerging-web_client.rules