alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET TROJAN Possible Inbound PowerShell? via Invoke-PSImage Stego"; flow:established,to_client; file_data; content:"|89 50 4e 47|"; depth:8; content:"c2FsIGEgTmV3LU9iamVjdDt"; distance:0; within:75; fast_pattern; metadata: former_category TROJAN; reference:url,github.com/peewpw/Invoke-PSImage/blob/master/Invoke-PSImage.ps1; classtype:trojan-activity; sid:2027085; rev:1; metadata:affected_product Any, attack_target Client_Endpoint, deployment Perimeter, signature_severity Minor, created_at 2019_03_18, performance_impact Moderate, updated_at 2019_03_18;)

Added 2019-03-18 18:28:52 UTC


Topic revision: r1 - 2019-03-18 - TWikiGuest
 
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