Rule History

SID: 2026988 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 5 • Feb 28, 2019, 12:00 PM

Message:

ET ATTACK_RESPONSE PowerShell NoProfile Command Received In Powershell Stagers

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET ATTACK_RESPONSE PowerShell NoProfile Command Received In Powershell Stagers"; flow:established,to_client; file.data; content:!"|22|manifestVersion|22|"; content:!"<html"; content:!"|22 7d 2c|"; content:"powershell"; fast_pattern; nocase; content:"-nop"; nocase; distance:0; classtype:bad-unknown; sid:2026988; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_02_28, deployment alert_only, performance_impact Low, confidence Low, signature_severity Minor, tag PowerShell, updated_at 2023_04_25, reviewed_at 2023_10_11;)

Created:

Feb 28, 2019, 12:00 PM

Updated:

Apr 25, 2023, 12:00 PM

DB Created:

Feb 28, 2019, 12:00 PM

DB Updated:

Sep 19, 2024, 9:01 PM

Filename:

rules/emerging-attack_response.rules