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Rev: 1 • May 19, 2025, 12:00 PMET HUNTING Obfuscated PowerShell Script Download - Excessive Split String M4
alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET HUNTING Obfuscated PowerShell Script Download - Excessive Split String M4"; flow:established,to_client; http.response_body; content:"|24|"; startswith; content:"|22 20 2b 20 22|"; distance:0; fast_pattern; content:"|22 20 2b 20 22|"; distance:0; reference:url,recordedfuture.com/research/uncovering-mintsloader-with-recorded-future-malware-intelligence-hunting; reference:url,community.emergingthreats.net/t/sigs-et-hunting-possible-obfuscated-powershell-script-download/2739; classtype:misc-activity; sid:2062460; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_05_19, deployment Perimeter, confidence Medium, signature_severity Informational, updated_at 2025_05_19, mitre_tactic_id TA0002, mitre_tactic_name Execution, mitre_technique_id T1059, mitre_technique_name Command_And_Scripting_Interpreter; target:dest_ip;)
May 19, 2025, 12:00 PM
May 19, 2025, 12:00 PM
May 19, 2025, 9:34 PM
Jun 12, 2025, 8:34 PM
rules/emerging-hunting.rules